Merge branch 'master' into master

Reviewed-on: evolix/evocheck#143

.drone.yml

@@ -0,0 +1,8 @@
+kind: pipeline
+name: default
+
+steps:
+  - name: run shellcheck on evocheck.sh
+    image: evolix/shellcheck
+    commands:
+      - LC_ALL=C.UTF-8 shellcheck evocheck.sh

.gitignore

@@ -0,0 +1,4 @@
+.vagrant
+
+*.swp
+.DS_Store

CHANGELOG

@@ -1,8 +1,243 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
-and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+and this project **does not adhere to [Semantic Versioning](http://semver.org/spec/v2.0.0.html)**.
 
 ## [Unreleased]
 
+### Added
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+### Security
+
+## [22.06] 2022-06-03
+
+### Added
+
+* IS_AUTOIF: Ignore WireGuard interfaces
+* IS_NETWORKING_SERVICE: check if networking service is enabled
+
+### Changed
+
+* IS_DEBIANSECURITY: Fix Debian security repo for Bullseye, cf https://www.debian.org/releases/stable/errata
+
+## [22.05] 2022-05-12
+
+### Changed
+
+* IS_EVOBACKUP_EXCLUDE_MOUNT: exclude scripts without Rsync command
+
+## [22.04.1] 2022-04-25
+
+### Changed
+
+* fix various shellcheck violations
+
+### Fixed
+
+* IS_EVOBACKUP_EXCLUDE_MOUNT: fix one-file-system restriction
+
+## [22.04] 2022-04-25
+
+### Changed
+
+* IS_EVOBACKUP_EXCLUDE_MOUNT : skip if --one-file-system is used
+
+### Fixed
+
+* check_versions: "IS_CHECK_VERSIONS" was checked but "IS_VERSIONS_CHECK" was echoed, now "IS_CHECK_VERSIONS" everywhere
+
+### Security
+
+* check_debiansecurity: Consider both https://deb\.debian\.org/debian-security/ and https://security\.debian\.org/debian-security/ as valid since both are documented as such.
+
+## [22.03.1] 2022-03-22
+
+### Changed
+
+* check_autoif : Ignore lxcbr interfaces, new since bullseye
+
+## [22.03] 2022-03-15
+
+### Added
+
+* check_mysqlmunin : Complain if munin plugin mysql_commands returns an error
+* check_versions : track minifirewall version
+
+## [21.10.4] 2021-10-25
+
+### Changed
+
+* IS_CHECK_VERSIONS disabled in cron mode
+
+## [21.10.3] 2021-10-22
+
+### Added
+
+* Check for newer versions
+* don't use "add-vm --version" yet
+
+## [21.10.2] 2021-10-22
+
+### Changed
+
+* Let's try the --version flag before falling back to grep for the constant
+
+## [21.10.1] 2021-10-01
+
+### Added
+
+* IS_SSHALLOWUSERS: also scan /etc/ssh/sshd_config.d
+* IS_CHECK_VERSIONS: check installed versions of Evolix programs
+
+## [21.10] 2021-10-01
+
+### Fixed
+
+* IS_DEBIANSECURITY: optional trailing slash 
+
+## [21.09] 2021-09-30
+
+### Added
+
+* Check for bullseye security repository
+* Checks for new minifirewall configuration
+* Improve MySQL utils configuration checks
+
+## [21.07] 2021-07-07
+
+### Added
+
+* Preliminary Debian 11 « Bullseye » support
+
+### Fixed
+
+* IS_HARDWARERAIDTOOL: match more RAID PCI cards
+
+### Security
+
+## [20.12] 2021-01-18
+
+### Fixed
+
+* IS_EVOLIX_USER: Match on if account name begin by evolix, don't match account name testevolix for example
+
+## [20.12] 2020-04-28
+
+### Added
+
+* support multiple values for SQL_BACKUP_PATH and POSTGRES_BACKUP_PATH
+
+### Changed
+
+* IS_EVOBACKUP_EXCLUDE_MOUNT: exclude disabled backup scripts
+* IS_DUPLICATE_FS_LABEL: disable blkid cache
+* IS_POSTGRES_BACKUP: look for compressed backup too
+* IS_VARTMPFS: use findmnt if available
+
+### Removed
+
+* Remove unused PROGDIR variable
+
+## [20.04.4] 2020-04-28
+
+### Added
+
+* IS_NGINX_LETSENCRYPT_UPTODATE: verify that the letsencrypt snippet is compatible with the current version of Nginx
+
+## [20.04.3] 2020-04-24
+
+### Fixed
+
+* IS_EVOBACKUP_INCS: also look for the new command
+
+## [20.04.2] 2020-04-15
+
+### Added
+
+* IS_CHROOTED_BINARY_NOT_UPTODATE: verify that chrooted processes run up-to-date binaries
+
+## [20.04.1] 2020-04-12
+
+### Added
+
+* IS_EVOBACKUP_EXCLUDE_MOUNT : verify that mount points are excluded in evobackup scripts
+
+## [20.02.1] - 2020-02-27
+
+### Changed
+
+* IS_EVOLINUXSUDOGROUP : improve sudoer directive detection
+
+## [19.11.2] - 2019-11-07
+
+### Changed
+
+* IS_EVOMAINTENANCE_FW : warn only if HOOK_DB is enabled
+* IS_BACKUPUPTODATE : check backup dates in the correct directory
+
+## [19.11.1] - 2019-11-06
+
+### Fixed
+
+* IS_TMPUSRRO : improve grep for options detection
+* IS_TMPNOEXEC : fix grep for options detection
+
+## [19.11] - 2019-11-05
+
+### Changed
+
+* IS_TUNE2FS_M5 displays the name of the partition
+* IS_MARIADBEVOLINUXCONF is disabled by default in cron mode
+* IS_PHPEVOLINUXCONF is disabled by default in cron mode
+* IS_OLD_HOME_DIR is disabled by default in cron mode
+* IS_TMPNOEXEC : better "noexec" detection for /tmp
+
+### Fixed
+
+* squid: better http port detection
+
+## [19.08] - 2019-08-30
+
+### Changed
+
+* better error messages for missing commands
+
+## [19.06] - 2019-06-21
+
+### Added
+
+* new check: IS_OSPROBER
+
+### Changed
+
+* IS_DISKPERF is disabled by default
+* verbose mode added for IS_APACHESYMLINK
+
+### Fixed
+
+* fix 5 apache checks (wrong package name was used)
+* fix IS_MYSQLNRPE (wrong test on a tilde expansion variable)
+
+## [19.04] - 2019-04-25
+
+### Added
+
+* IS_EVOBACKUP_INCS
+
+### Changed
+
+* change versioning scheme : year.month.patch
+* extracts tests into functions
+* add verbose and quiet modes
+* add usage output on error
+* add braces and quotes
+
 ## [0.13] - 2018-04-10
 
 ### Added
@@ -32,45 +267,45 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Added
 
-  * Bunch of new checks:                                                   
-    IS_PRIVKEYWOLRDREADABLE                                                
-    IS_EVOLINUXSUDOGROUP                                                   
-    IS_USERINADMGROUP                                                      
-    IS_APACHE2EVOLINUXCONF    
-    IS_BACKPORTSCONF                       
-    IS_BIND9MUNIN                         
-    IS_BIND9LOGROTATE                      
-    IS_BROADCOMFIRMWARE                                                 
+  * Bunch of new checks:
+    IS_PRIVKEYWOLRDREADABLE
+    IS_EVOLINUXSUDOGROUP
+    IS_USERINADMGROUP
+    IS_APACHE2EVOLINUXCONF
+    IS_BACKPORTSCONF
+    IS_BIND9MUNIN
+    IS_BIND9LOGROTATE
+    IS_BROADCOMFIRMWARE
     IS_HARDWARERAIDTOOL
-    IS_LOG2MAILSYSTEMDUNIT                                              
+    IS_LOG2MAILSYSTEMDUNIT
     IS_LISTUPGRADE
-    IS_MARIADBEVOLINUXCONF              
+    IS_MARIADBEVOLINUXCONF
     IS_MARIADBSYSTEMDUNIT
-    IS_MYSQLMUNIN             
-    IS_PHPEVOLINUXCONF        
-    IS_SQUIDLOGROTATE                      
-    IS_SQUIDEVOLINUXCONF        
-    IS_SQL_BACKUP                          
-    IS_POSTGRES_BACKUP                    
-    IS_LDAP_BACKUP                         
-    IS_REDIS_BACKUP                       
-    IS_ELASTIC_BACKUP                                               
+    IS_MYSQLMUNIN
+    IS_PHPEVOLINUXCONF
+    IS_SQUIDLOGROTATE
+    IS_SQUIDEVOLINUXCONF
+    IS_SQL_BACKUP
+    IS_POSTGRES_BACKUP
+    IS_LDAP_BACKUP
+    IS_REDIS_BACKUP
+    IS_ELASTIC_BACKUP
     IS_MONGO_BACKUP
-    IS_MOUNT_FSTAB                                                  
+    IS_MOUNT_FSTAB
     IS_NETWORK_INTERFACES
 
 ### Changed
 
-  * IS_UPTIME added in --cron mode                                          
-  * is_pack_web() for Stretch           
-  * IS_DPKGWARNING for Stretch                                              
+  * IS_UPTIME added in --cron mode
+  * is_pack_web() for Stretch
+  * IS_DPKGWARNING for Stretch
   * IS_MOUNT_FSTAB is disabled if lsblk not available
-  * IS_MINIFWPERMS for Stretch                                      
+  * IS_MINIFWPERMS for Stretch
   * IS_SQUID for Stretch
-  * IS_LOG2MAILAPACHE for Stretch                                   
+  * IS_LOG2MAILAPACHE for Stretch
   * IS_AUTOIF for Stretch
-  * IS_UPTIME warn if uptime is more thant 2y, was 1y
+  * IS_UPTIME warn if uptime is more than 2y, was 1y
   * IS_NOTUPGRADED warn if last upgrade is older than 90d, was 30d
-  * IS_TUNE2FS_M5 use python in place of bc for calculation               
+  * IS_TUNE2FS_M5 use python in place of bc for calculation
   * IS_EVOMAINTENANCEUSERS for Stretch
-  * IS_EVOMAINTENANCECONF check also the mode of the file (600)           
+  * IS_EVOMAINTENANCECONF check also the mode of the file (600)

LICENSE

@@ -0,0 +1,675 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+
+  11. Patents.
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+
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+
+  A patent license is "discriminatory" if it does not include within
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+conditioned on the non-exercise of one or more of the rights that are
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+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
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+
+  13. Use with the GNU Affero General Public License.
+
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+
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+
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+
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+
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+SUCH DAMAGES.
+
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+
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+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
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+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
+

README.md

@@ -1,5 +1,78 @@
+# Evocheck
 
-# How to build the package for a new release
+It runs many compliance checks of the server with Evolix conventions.
+Non-compliance warnings are printed on standard output.
+
+It supports Debian and OpenBSD systems.
+
+Some checks can be disabled in the `/etc/evocheck.cf` config file.
+
+Tests can be run with Vagrant and the provided `VagrantFile`.
+
+## How to contribute
+
+Read the CONTRIBUTING.md file.
+
+Try to respect the following conventions.
+
+### Use the verbose mode to explain errors
+
+The `failed` function takes a mandatory first argument for the check name and a secondary optional argument for the message to display in verbose mode. Example :
+
+```shell
+test -f /path/to/file || failed "IS_FILE_EXISTS" "Missing file \`/path/to/file'"
+```
+
+If the test is in a loop and might yield multiple errors, It's better to print a single error in normal mode and every error in verbose mode.
+
+```shell
+for user in $users; do
+    if ! groups "$user" | grep -q adm; then
+        failed "IS_USERINADMGROUP" "User $user doesn't belong to \`adm' group"
+        test "${VERBOSE}" = 1 || break
+    fi
+done
+```
+
+In a single check with multiple conditions, the verbose message helps determine which condition failed. Example :
+
+```shell
+if [ "$last_upgrade" -eq 0 ]; then
+    [ "$install_date" -lt "$limit" ] && failed "IS_NOTUPGRADED" "The system has never been updated"
+else
+    [ "$last_upgrade" -lt "$limit" ] && failed "IS_NOTUPGRADED" "The system hasn't been updated for too long"
+fi
+```
+
+### Use existing predicates
+
+There are a few predicate functions that help making conditionals.
+
+For Debian versions : `is_debian`, `is_debian_stretch`, `is_debian_jessie`…
+For packs : `is_pack_web`, `is_pack_samba`.
+For installed packages : `is_installed <package> [<package>]`.
+
+### Extact variables
+
+It's better not to inline function calls inside tests. Instead of this :
+
+```shell
+test "$(stat --format "%a" $MINIFW_FILE)" = "600" || failed "IS_MINIFWPERMS"
+```
+
+… prefer that :
+
+```shell
+actual=$(stat --format "%a" $MINIFW_FILE)
+expected="600"
+test "$expected" = "$actual" || failed "IS_MINIFWPERMS"
+```
+
+### Verify assumptions
+
+It's better to verify that a file, a directory or a command is present before using it, even if it's true in more than 99% of situations.
+
+## How to build the package for a new Debian release
 
 On the master branch, add the last stable version with a release tag.
 ```
@@ -22,3 +95,39 @@ If the build is OK, you can now build the final package.
 dch -D stretch -r
 gbp buildpackage --git-debian-branch=debian --git-upstream-tree=master --git-export-dir=/tmp/build-area --git-tag --git-sign --git-keyid=<KEY>
 ```
+
+## Testing
+
+Evocheck can be tested with Vagrant, if you don't have installed it yet :
+
+~~~
+apt install vagrant vagrant-libvirt
+~~~
+
+You can now start your Vagrant machine and connect to it :
+
+~~~
+vagrant up
+vagrant ssh
+sudo -i
+~~~
+
+Evocheck can be run with :
+
+~~~
+/usr/share/scripts/evocheck.sh
+~~~
+
+### Deployment
+
+Launch **vagrant rsync-auto** in a terminal to automatically synchronise
+your local code with the Vagrant VM :
+
+~~~
+vagrant rsync-auto
+~~~
+
+## License
+
+This is an [Evolix](https://evolix.com) project and is licensed
+under the GPLv3, see the [LICENSE](LICENSE) file for details.

Vagrantfile

@@ -0,0 +1,43 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant::DEFAULT_SERVER_URL.replace('https://vagrantcloud.com')
+
+# Load ~/.VagrantFile if exist, permit local config provider
+vagrantfile = File.join("#{Dir.home}", '.VagrantFile')
+load File.expand_path(vagrantfile) if File.exists?(vagrantfile)
+
+Vagrant.configure('2') do |config|
+  config.vm.synced_folder "./", "/vagrant", type: "rsync", rsync__exclude: [ '.vagrant', '.git' ]
+  config.ssh.shell="/bin/sh"
+
+  $deps = <<SCRIPT
+rm -f /usr/share/scripts/evocheck.sh
+ln -s /vagrant/evocheck.sh /usr/share/scripts/evocheck.sh
+cat >/etc/evocheck.cf <<EOF
+IS_CUSTOMSUDOERS=0
+IS_VARTMPFS=0
+IS_USRRO=0
+IS_TMPNOEXEC=0
+IS_SSHALLOWUSERS=0
+IS_ALERT5MINIFW=0
+IS_MINIFW=0
+IS_MINIFWPERMS=0
+IS_EVOBACKUP=0
+IS_MUNINRUNNING=0
+IS_EVOLINUXSUDOGROUP=0
+IS_LOG2MAILSYSTEMDUNIT=0
+IS_LISTUPGRADE=0
+IS_EVOMAINTENANCECONF=0
+EOF
+SCRIPT
+
+  config.vm.define :evocheck do |node|
+    node.vm.hostname = "evocheck.example.com"
+    node.vm.box = "evolix/evolinux"
+
+    node.vm.provision "deps", type: "shell", :inline => $deps
+
+  end
+
+end

evocheck.sh

@@ -4,919 +4,1840 @@
 # Script to verify compliance of a Debian/OpenBSD server
 # powered by Evolix
 
-# Disable LANG*
-export LANG=C
-export LANGUAGE=C
+VERSION="22.06"
+readonly VERSION
 
-# Default configuration values
-IS_TMP_1777=1
-IS_ROOT_0700=1
-IS_VARTMPFS=1
-IS_USRSHARESCRIPTS=1
-IS_SERVEURBASE=1
-IS_LOGROTATECONF=1
-IS_SYSLOGCONF=1
-IS_DEBIANSECURITY=1
-IS_APTITUDEONLY=1
-IS_APTITUDE=1
-IS_APTGETBAK=1
-IS_APTICRON=0
-IS_USRRO=1
-IS_TMPNOEXEC=1
-IS_LISTCHANGESCONF=1
-IS_DPKGWARNING=1
-IS_CUSTOMCRONTAB=1
-IS_CUSTOMSUDOERS=1
-IS_SSHPERMITROOTNO=1
-IS_SSHALLOWUSERS=1
-IS_TMOUTPROFILE=1
-IS_ALERT5BOOT=1
-IS_ALERT5MINIFW=1
-IS_MINIFW=1
-IS_NRPEPERMS=1
-IS_MINIFWPERMS=1
-IS_NRPEDISKS=0
-IS_NRPEPOSTFIX=1
-IS_NRPEPID=1
-IS_GRSECPROCS=1
-IS_UMASKSUDOERS=1
-IS_EVOMAINTENANCEUSERS=1
-IS_APACHEMUNIN=1
-IS_MYSQLUTILS=1
-IS_RAIDSOFT=1
-IS_AWSTATSLOGFORMAT=1
-IS_MUNINLOGROTATE=1
-IS_EVOMAINTENANCECONF=1
-#IS_METCHE=1
-IS_SQUID=1
-IS_MODDEFLATE=1
-IS_LOG2MAILRUNNING=1
-IS_LOG2MAILAPACHE=1
-IS_LOG2MAILMYSQL=1
-IS_LOG2MAILSQUID=1
-IS_BINDCHROOT=1
-IS_REPVOLATILE=1
-IS_AUTOIF=1
-IS_INTERFACESGW=1
-IS_TOOMUCHDEBIANSYSMAINT=1
-IS_USERLOGROTATE=1
-IS_MODSECURITY=1
-IS_APACHECTL=1
-IS_APACHESYMLINK=1
-IS_APACHEIPINALLOW=1
-IS_MUNINAPACHECONF=1
-IS_SAMBAPINPRIORITY=1
-IS_KERNELUPTODATE=1
-IS_UPTIME=1
-IS_MUNINRUNNING=1
-IS_BACKUPUPTODATE=1
-IS_GITPERMS=1
-IS_NOTUPGRADED=1
-IS_TUNE2FS_M5=1
-IS_PRIVKEYWOLRDREADABLE=1
-IS_EVOLINUXSUDOGROUP=1
-IS_USERINADMGROUP=1
-IS_APACHE2EVOLINUXCONF=1
-IS_BACKPORTSCONF=1
-IS_BIND9MUNIN=1
-IS_BIND9LOGROTATE=1
-IS_BROADCOMFIRMWARE=1
-IS_HARDWARERAIDTOOL=1
-IS_LOG2MAILSYSTEMDUNIT=1
-IS_LISTUPGRADE=1
-IS_MARIADBEVOLINUXCONF=1
-IS_MARIADBSYSTEMDUNIT=1
-IS_MYSQLMUNIN=1
-IS_PHPEVOLINUXCONF=1
-IS_SQUIDLOGROTATE=1
-IS_SQUIDEVOLINUXCONF=1
-IS_SQL_BACKUP=1
-IS_POSTGRES_BACKUP=1
-IS_LDAP_BACKUP=1
-IS_REDIS_BACKUP=1
-IS_ELASTIC_BACKUP=1
-IS_MONGO_BACKUP=1
-IS_MOUNT_FSTAB=1
-IS_NETWORK_INTERFACES=1
-IS_EVOBACKUP=1
-IS_DUPLICATE_FS_LABEL=1
-IS_EVOMAINTENANCE_FW=1
-IS_EVOLIX_USER=1
+# base functions
 
-#Proper to OpenBSD
-IS_SOFTDEP=1
-IS_WHEEL=1
-IS_SUDOADMIN=1
-IS_PKGMIRROR=1
-IS_HISTORY=1
-IS_VIM=1
-IS_TTYC0SECURE=1
-IS_CUSTOMSYSLOG=1
-IS_NOINETD=1
-IS_SUDOMAINT=1
-IS_POSTGRESQL=1
-IS_NRPE=1
-IS_NRPEDAEMON=1
-IS_ALERTBOOT=1
-IS_RSYNC=1
+show_version() {
+    cat <<END
+evocheck version ${VERSION}
 
-# Source configuration file
-test -f /etc/evocheck.cf && . /etc/evocheck.cf
+Copyright 2009-2022 Evolix <info@evolix.fr>,
+                    Romain Dessort <rdessort@evolix.fr>,
+                    Benoit Série <bserie@evolix.fr>,
+                    Gregory Colpart <reg@evolix.fr>,
+                    Jérémy Lecour <jlecour@evolix.fr>,
+                    Tristan Pilat <tpilat@evolix.fr>,
+                    Victor Laborie <vlaborie@evolix.fr>,
+                    Alexis Ben Miloud--Josselin <abenmiloud@evolix.fr>,
+                    and others.
 
-# If --cron is passed, ignore some checks.
-if [ "$1" = "--cron" ]; then
-    IS_KERNELUPTODATE=0
-    IS_UPTIME=0
-fi
+evocheck comes with ABSOLUTELY NO WARRANTY.  This is free software,
+and you are welcome to redistribute it under certain conditions.
+See the GNU General Public License v3.0 for details.
+END
+}
+show_help() {
+    cat <<END
+evocheck is a script that verifies Evolix conventions on Debian/OpenBSD servers.
+
+Usage: evocheck
+  or   evocheck --cron
+  or   evocheck --quiet
+  or   evocheck --verbose
+
+Options
+     --cron                  disable a few checks
+ -v, --verbose               increase verbosity of checks
+ -q, --quiet                 nothing is printed on stdout nor stderr
+ -h, --help                  print this message and exit
+     --version               print version and exit
+END
+}
+
+detect_os() {
+    # OS detection
+    DEBIAN_RELEASE=""
+    LSB_RELEASE_BIN=$(command -v lsb_release)
+    OPENBSD_RELEASE=""
+
+    if [ -e /etc/debian_version ]; then
+        DEBIAN_VERSION=$(cut -d "." -f 1 < /etc/debian_version)
+        if [ -x "${LSB_RELEASE_BIN}" ]; then
+            DEBIAN_RELEASE=$(${LSB_RELEASE_BIN} --codename --short)
+        else
+            case ${DEBIAN_VERSION} in
+                5) DEBIAN_RELEASE="lenny";;
+                6) DEBIAN_RELEASE="squeeze";;
+                7) DEBIAN_RELEASE="wheezy";;
+                8) DEBIAN_RELEASE="jessie";;
+                9) DEBIAN_RELEASE="stretch";;
+                10) DEBIAN_RELEASE="buster";;
+                11) DEBIAN_RELEASE="bullseye";;
+                12) DEBIAN_RELEASE="bookworm";;
+            esac
+        fi
+    elif [ "$(uname -s)" = "OpenBSD" ]; then
+        # use a better release name
+        OPENBSD_RELEASE=$(uname -r)
+    fi
+}
+
+is_debian() {
+    test -n "${DEBIAN_RELEASE}"
+}
+is_debian_lenny() {
+    test "${DEBIAN_RELEASE}" = "lenny"
+}
+is_debian_squeeze() {
+    test "${DEBIAN_RELEASE}" = "squeeze"
+}
+is_debian_wheezy() {
+    test "${DEBIAN_RELEASE}" = "wheezy"
+}
+is_debian_jessie() {
+    test "${DEBIAN_RELEASE}" = "jessie"
+}
+is_debian_stretch() {
+    test "${DEBIAN_RELEASE}" = "stretch"
+}
+is_debian_buster() {
+    test "${DEBIAN_RELEASE}" = "buster"
+}
+is_debian_bullseye() {
+    test "${DEBIAN_RELEASE}" = "bullseye"
+}
+is_debian_bookworm() {
+    test "${DEBIAN_RELEASE}" = "bookworm"
+}
+debian_release() {
+    printf "%s" "${DEBIAN_RELEASE}"
+}
+debian_version() {
+    printf "%s" "${DEBIAN_VERSION}"
+}
+is_openbsd() {
+  test -n "${OPENBSD_RELEASE}"
+}
 
-# Functions
 is_pack_web(){
     test -e /usr/share/scripts/web-add.sh || test -e /usr/share/scripts/evoadmin/web-add.sh
 }
-
 is_pack_samba(){
     test -e /usr/share/scripts/add.pl
 }
-
 is_installed(){
-    for pkg in $*; do
-            dpkg -l $pkg 2>/dev/null |grep -q ^ii || return 1
+    for pkg in "$@"; do
+        dpkg -l "$pkg" 2> /dev/null | grep -q -E '^(i|h)i' || return 1
     done
 }
-
-is_debianversion(){
-    [ $(lsb_release -c -s) = $1 ] && return 0
+minifirewall_file() {
+    case ${DEBIAN_RELEASE} in
+        lenny) echo "/etc/firewall.rc" ;;
+        squeeze) echo "/etc/firewall.rc" ;;
+        wheezy) echo "/etc/firewall.rc" ;;
+        jessie) echo "/etc/default/minifirewall" ;;
+        stretch) echo "/etc/default/minifirewall" ;;
+        *) echo "/etc/default/minifirewall" ;;
+    esac
 }
 
-is_debianversion squeeze && MINIFW_FILE=/etc/firewall.rc
-is_debianversion wheezy && MINIFW_FILE=/etc/firewall.rc
-is_debianversion jessie && MINIFW_FILE=/etc/default/minifirewall
-is_debianversion stretch && MINIFW_FILE=/etc/default/minifirewall
+# logging
 
-#-----------------------------------------------------------
-#Vérifie si c'est une debian et fait les tests appropriés.
-#-----------------------------------------------------------
+failed() {
+    check_name=$1
+    shift
+    check_comments=$*
 
-if [ -e /etc/debian_version ]; then
-
-    if [ "$IS_DPKGWARNING" = 1 ]; then
-        is_debianversion squeeze && ( [ "$IS_USRRO" = 1 ] || [ "$IS_TMPNOEXEC" = 1 ] ) && ( \
-            grep -E -i "(Pre-Invoke ..echo Are you sure to have rw on|Post-Invoke ..echo Dont forget to mount -o remount)" \
-            /etc/apt/apt.conf | wc -l | grep -q ^2$ || echo 'IS_DPKGWARNING FAILED!' )
-        is_debianversion wheezy && ( ( [ "$IS_USRRO" = 1 ] || [ "$IS_TMPNOEXEC" = 1 ] ) && \
-            ( test -e /etc/apt/apt.conf.d/80evolinux || echo 'IS_DPKGWARNING FAILED!' )
-            test -e /etc/apt/apt.conf && echo 'IS_DPKGWARNING FAILED!' )
-        is_debianversion stretch && (test -e /etc/apt/apt.conf.d/z-evolinux.conf || echo 'IS_DPKGWARNING FAILED!')
-    fi
-
-    if [ "$IS_UMASKSUDOERS" = 1 ]; then
-        is_debianversion squeeze && ( grep -q ^Defaults.*umask=0077 /etc/sudoers || echo 'IS_UMASKSUDOERS FAILED!' )
-    fi
-
-    # Verifying check_mailq in Nagios NRPE config file. (Option "-M postfix" need to be set if the MTA is Postfix)
-    if [ "$IS_NRPEPOSTFIX" = 1 ]; then
-        is_debianversion squeeze && is_installed postfix && ( grep -q "^command.*check_mailq -M postfix" /etc/nagios/nrpe.cfg || echo 'IS_NRPEPOSTFIX FAILED!' )
-        is_debianversion squeeze || ( is_installed postfix && ( test -e /etc/nagios/nrpe.cfg && grep -qr "^command.*check_mailq -M postfix" /etc/nagios/nrpe.* || echo 'IS_NRPEPOSTFIX FAILED!' ) )
-    fi
-
-    # Check if mod-security config file is present
-    if [ "$IS_MODSECURITY" = 1 ]; then
-        is_debianversion squeeze && is_installed libapache-mod-security && \
-            (test -e /etc/apache2/conf.d/mod-security2.conf || echo 'IS_MODSECURITY FAILED!')
-        is_debianversion wheezy && is_installed libapache2-modsecurity && \
-            (test -e /etc/apache2/conf.d/mod-security2.conf || echo 'IS_MODSECURITY FAILED!')
-    fi
-
-    if [ "$IS_CUSTOMSUDOERS" = 1 ]; then
-        grep -E -qr "umask=0077" /etc/sudoers* || echo 'IS_CUSTOMSUDOERS FAILED!'
-    fi
-
-    if [ "$IS_VARTMPFS" = 1 ]; then
-        df /var/tmp | grep -q tmpfs || echo 'IS_VARTMPFS FAILED!'
-    fi
-
-    if [ "$IS_SERVEURBASE" = 1 ]; then
-        is_installed serveur-base || echo 'IS_SERVEURBASE FAILED!'
-    fi
-
-    if [ "$IS_LOGROTATECONF" = 1 ]; then
-        test -e /etc/logrotate.d/zsyslog || echo 'IS_LOGROTATECONF FAILED!'
-    fi
-
-    if [ "$IS_SYSLOGCONF" = 1 ]; then
-        grep -q "^# Syslog for Pack Evolix serveur" /etc/*syslog.conf || echo 'IS_SYSLOGCONF FAILED!'
-    fi
-
-    if [ "$IS_DEBIANSECURITY" = 1 ]; then
-        grep -q "^deb.*security" /etc/apt/sources.list || echo 'IS_DEBIANSECURITY FAILED!'
-    fi
-
-    if [ "$IS_APTITUDEONLY" = 1 ]; then
-        is_debianversion squeeze && test -e /usr/bin/apt-get && echo 'IS_APTITUDEONLY FAILED!'
-        is_debianversion wheezy && test -e /usr/bin/apt-get && echo 'IS_APTITUDEONLY FAILED!'
-    fi
-
-    if [ "$IS_APTITUDE" = 1 ]; then
-        is_debianversion jessie && test -e /usr/bin/aptitude && echo 'IS_APTITUDE FAILED!'
-        is_debianversion stretch && test -e /usr/bin/aptitude && echo 'IS_APTITUDE FAILED!'
-    fi
-
-    if [ "$IS_APTGETBAK" = 1 ]; then
-        is_debianversion jessie && test -e /usr/bin/apt-get.bak && echo 'IS_APTGETBAK FAILED!'
-        is_debianversion stretch && test -e /usr/bin/apt-get.bak && echo 'IS_APTGETBAK FAILED!'
-    fi
-
-    if [ "$IS_APTICRON" = 1 ]; then
-        status="OK"
-        test -e /etc/cron.d/apticron || status="fail"
-        test -e /etc/cron.daily/apticron && status="fail"
-        test "$status" = "fail" || test -e /usr/bin/apt-get.bak || status="fail"
-        ( is_debianversion squeeze || is_debianversion wheezy ) && test "$status" = "fail" && echo 'IS_APTICRON FAILED!'
-    fi
-
-    if [ "$IS_USRRO" = 1 ]; then
-        grep /usr /etc/fstab | grep -q ro || echo 'IS_USRRO FAILED!'
-    fi
-
-    if [ "$IS_TMPNOEXEC" = 1 ]; then
-        mount | grep "on /tmp" | grep -q noexec || echo 'IS_TMPNOEXEC FAILED!'
-    fi
-
-    if [ "$IS_MOUNT_FSTAB" = 1 ]; then
-        # Test if lsblk available, if not skip this test...
-        if test -x "$(command -v lsblk)"; then
-            for mountPoint in $(lsblk -o MOUNTPOINT -l -n | grep '/'); do
-                grep -Eq "$mountPoint\W" /etc/fstab || echo 'IS_MOUNT_FSTAB FAILED!'
-            done
-        fi
-    fi
-
-    if [ "$IS_LISTCHANGESCONF" = 1 ]; then
-        if is_debianversion stretch; then
-            is_installed apt-listchanges && echo 'IS_LISTCHANGESCONF FAILED!'
+    RC=1
+    if [ "${QUIET}" != 1 ]; then
+        if [ -n "${check_comments}" ] && [ "${VERBOSE}" = 1 ]; then
+            printf "%s FAILED! %s\n" "${check_name}" "${check_comments}" >> "${main_output_file}"
         else
-            test -e /etc/apt/listchanges.conf && grep -E "(which=both|confirm=1)" /etc/apt/listchanges.conf | wc -l | grep -q ^2$ || echo 'IS_LISTCHANGESCONF FAILED!'
+            printf "%s FAILED!\n" "${check_name}" >> "${main_output_file}"
         fi
     fi
+}
 
-    if [ "$IS_CUSTOMCRONTAB" = 1 ]; then
-        grep -E "^(17 \*|25 6|47 6|52 6)" /etc/crontab | wc -l | grep -q ^4$ && echo 'IS_CUSTOMCRONTAB FAILED!'
+# check functions
+
+check_lsbrelease(){
+    if [ -x "${LSB_RELEASE_BIN}" ]; then
+        ## only the major version matters
+        lhs=$(${LSB_RELEASE_BIN} --release --short | cut -d "." -f 1)
+        rhs=$(cut -d "." -f 1 < /etc/debian_version)
+        test "$lhs" = "$rhs" || failed "IS_LSBRELEASE" "release is not consistent between lsb_release (${lhs}) and /etc/debian_version (${rhs})"
+    else
+        failed "IS_LSBRELEASE" "lsb_release is missing or not executable"
+    fi
+}
+check_dpkgwarning() {
+    if is_debian_squeeze; then
+        if [ "$IS_USRRO" = 1 ] || [ "$IS_TMPNOEXEC" = 1 ]; then
+            count=$(grep -c -E -i "(Pre-Invoke ..echo Are you sure to have rw on|Post-Invoke ..echo Dont forget to mount -o remount)" /etc/apt/apt.conf)
+            test "$count" = 2 || failed "IS_DPKGWARNING" "Pre/Post-Invoke are missing."
+        fi
+    elif is_debian_wheezy; then
+        if [ "$IS_USRRO" = 1 ] || [ "$IS_TMPNOEXEC" = 1 ]; then
+            test -e /etc/apt/apt.conf.d/80evolinux \
+                || failed "IS_DPKGWARNING" "/etc/apt/apt.conf.d/80evolinux is missing"
+            test -e /etc/apt/apt.conf \
+                && failed "IS_DPKGWARNING" "/etc/apt/apt.conf is missing"
+        fi
+    elif is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        test -e /etc/apt/apt.conf.d/z-evolinux.conf \
+            || failed "IS_DPKGWARNING" "/etc/apt/apt.conf.d/z-evolinux.conf is missing"
+    fi
+}
+check_umasksudoers(){
+    if is_debian_squeeze; then
+        grep -q "^Defaults.*umask=0077" /etc/sudoers \
+            || failed "IS_UMASKSUDOERS" "sudoers must set umask to 0077"
+    fi
+}
+# Verifying check_mailq in Nagios NRPE config file. (Option "-M postfix" need to be set if the MTA is Postfix)
+check_nrpepostfix() {
+    if is_installed postfix; then
+        if is_debian_squeeze; then
+            grep -q "^command.*check_mailq -M postfix" /etc/nagios/nrpe.cfg \
+                || failed "IS_NRPEPOSTFIX" "NRPE \"check_mailq\" for postfix is missing"
+        else
+            { test -e /etc/nagios/nrpe.cfg \
+                && grep -qr "^command.*check_mailq -M postfix" /etc/nagios/nrpe.*;
+            } || failed "IS_NRPEPOSTFIX" "NRPE \"check_mailq\" for postfix is missing"
+        fi
+    fi
+}
+# Check if mod-security config file is present
+check_modsecurity() {
+    if is_debian_squeeze; then
+        if is_installed libapache-mod-security; then
+            test -e /etc/apache2/conf.d/mod-security2.conf || failed "IS_MODSECURITY" "missing configuration file"
+        fi
+    elif is_debian_wheezy; then
+        if is_installed libapache2-modsecurity; then
+            test -e /etc/apache2/conf.d/mod-security2.conf || failed "IS_MODSECURITY" "missing configuration file"
+        fi
+    fi
+}
+check_customsudoers() {
+    grep -E -qr "umask=0077" /etc/sudoers* || failed "IS_CUSTOMSUDOERS" "missing umask=0077 in sudoers file"
+}
+check_vartmpfs() {
+    FINDMNT_BIN=$(command -v findmnt)
+    if [ -x "${FINDMNT_BIN}" ]; then
+        ${FINDMNT_BIN} /var/tmp --type tmpfs --noheadings > /dev/null || failed "IS_VARTMPFS" "/var/tmp is not a tmpfs"
+    else
+        df /var/tmp | grep -q tmpfs || failed "IS_VARTMPFS" "/var/tmp is not a tmpfs"
+    fi
+}
+check_serveurbase() {
+    is_installed serveur-base || failed "IS_SERVEURBASE" "serveur-base package is not installed"
+}
+check_logrotateconf() {
+    test -e /etc/logrotate.d/zsyslog || failed "IS_LOGROTATECONF" "missing zsyslog in logrotate.d"
+}
+check_syslogconf() {
+    grep -q "^# Syslog for Pack Evolix serveur" /etc/*syslog.conf \
+        || failed "IS_SYSLOGCONF" "syslog evolix config file missing"
+}
+check_debiansecurity() {
+    if is_debian_bullseye; then
+        # https://www.debian.org/releases/bullseye/amd64/release-notes/ch-information.html#security-archive
+        # https://www.debian.org/security/
+        pattern="^deb  ?(\[.*\])? ?http://security\.debian\.org/debian-security/? bullseye-security main"
+    elif is_debian_buster; then
+        pattern="^deb  ?(\[.*\])? ?http://security\.debian\.org/debian-security/? buster/updates main"
+    elif is_debian_stretch; then
+        pattern="^deb  ?(\[.*\])? ?http://security\.debian\.org/debian-security/? stretch/updates main"
+    else
+        pattern="^deb.*security"
     fi
 
-    if [ "$IS_SSHALLOWUSERS" = 1 ]; then
-        grep -E -qi "(AllowUsers|AllowGroups)" /etc/ssh/sshd_config || echo 'IS_SSHALLOWUSERS FAILED!'
+    source_file="/etc/apt/sources.list"
+    grep -qE "${pattern}" "${source_file}" || failed "IS_DEBIANSECURITY" "missing debian security repository"
+}
+check_aptitudeonly() {
+    if is_debian_squeeze || is_debian_wheezy; then
+        test -e /usr/bin/apt-get && failed "IS_APTITUDEONLY" \
+            "only aptitude may be enabled on Debian <=7, apt-get should be disabled"
     fi
-
-    if [ "$IS_DISKPERF" = 1 ]; then
-        test -e /root/disk-perf.txt || echo 'IS_DISKPERF FAILED!'
+}
+check_aptitude() {
+    if is_debian_jessie || is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        test -e /usr/bin/aptitude && failed "IS_APTITUDE" "aptitude may not be installed on Debian >=8"
     fi
-
-    if [ "$IS_TMOUTPROFILE" = 1 ]; then
-        grep -q TMOUT= /etc/profile /etc/profile.d/evolinux.sh || echo 'IS_TMOUTPROFILE FAILED!'
+}
+check_aptgetbak() {
+    if is_debian_jessie || is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        test -e /usr/bin/apt-get.bak && failed "IS_APTGETBAK" "prohibit the installation of apt-get.bak with dpkg-divert(1)"
     fi
+}
+check_apticron() {
+    status="OK"
+    test -e /etc/cron.d/apticron || status="fail"
+    test -e /etc/cron.daily/apticron && status="fail"
+    test "$status" = "fail" || test -e /usr/bin/apt-get.bak || status="fail"
 
-    if [ "$IS_ALERT5BOOT" = 1 ]; then
-        grep -q ^date /etc/rc2.d/S*alert5 || echo 'IS_ALERT5BOOT FAILED!'
+    if is_debian_squeeze || is_debian_wheezy; then
+        test "$status" = "fail" && failed "IS_APTICRON" "apticron must be in cron.d not cron.daily"
     fi
-
-    if [ "$IS_ALERT5MINIFW" = 1 ]; then
-        grep -q ^/etc/init.d/minifirewall /etc/rc2.d/S*alert5 || echo 'IS_ALERT5MINIFW FAILED!'
+}
+check_usrro() {
+    grep /usr /etc/fstab | grep -qE "\bro\b" || failed "IS_USRRO" "missing ro directive on fstab for /usr"
+}
+check_tmpnoexec() {
+    FINDMNT_BIN=$(command -v findmnt)
+    if [ -x "${FINDMNT_BIN}" ]; then
+        options=$(${FINDMNT_BIN} --noheadings --first-only --output OPTIONS /tmp)
+        echo "${options}" | grep -qE "\bnoexec\b" || failed "IS_TMPNOEXEC" "/tmp is not mounted with 'noexec'"
+    else
+        mount | grep "on /tmp" | grep -qE "\bnoexec\b" || failed "IS_TMPNOEXEC" "/tmp is not mounted with 'noexec' (WARNING: findmnt(8) is not found)"
     fi
-
-    if [ "$IS_ALERT5MINIFW" = 1 ] && [ "$IS_MINIFW" = 1 ]; then
-        /sbin/iptables -L -n | grep -q -E "^ACCEPT\s*all\s*--\s*31\.170\.8\.4\s*0\.0\.0\.0/0\s*$" || echo 'IS_MINIFW FAILED!'
+}
+check_mountfstab() {
+    # Test if lsblk available, if not skip this test...
+    LSBLK_BIN=$(command -v lsblk)
+    if test -x "${LSBLK_BIN}"; then
+        for mountPoint in $(${LSBLK_BIN} -o MOUNTPOINT -l -n | grep '/'); do
+            grep -Eq "$mountPoint\W" /etc/fstab \
+                || failed "IS_MOUNT_FSTAB" "partition(s) detected mounted but no presence in fstab"
+        done
     fi
-
-    if [ "$IS_NRPEPERMS" = 1 ]; then
-        test -d /etc/nagios && ls -ld /etc/nagios | grep -q drwxr-x--- || echo 'IS_NRPEPERMS FAILED!'
+}
+check_listchangesconf() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed apt-listchanges; then
+            failed "IS_LISTCHANGESCONF" "apt-listchanges must not be installed on Debian >=9"
+        fi
+    else
+        if [ -e "/etc/apt/listchanges.conf" ]; then
+            lines=$(grep -cE "(which=both|confirm=1)" /etc/apt/listchanges.conf)
+            if [ "$lines" != 2 ]; then
+                failed "IS_LISTCHANGESCONF" "apt-listchanges config is incorrect"
+            fi
+        else
+            failed "IS_LISTCHANGESCONF" "apt-listchanges config is missing"
+        fi
     fi
-
-    if [ "$IS_MINIFWPERMS" = 1 ]; then
-        ls -l "$MINIFW_FILE" | grep -q -- -rw------- || echo 'IS_MINIFWPERMS FAILED!'
+}
+check_customcrontab() {
+    found_lines=$(grep -c -E "^(17 \*|25 6|47 6|52 6)" /etc/crontab)
+    test "$found_lines" = 4 && failed "IS_CUSTOMCRONTAB" "missing custom field in crontab"
+}
+check_sshallowusers() {
+    grep -E -qir "(AllowUsers|AllowGroups)" /etc/ssh/sshd_config /etc/ssh/sshd_config.d \
+        || failed "IS_SSHALLOWUSERS" "missing AllowUsers or AllowGroups directive in sshd_config"
+}
+check_diskperf() {
+    perfFile="/root/disk-perf.txt"
+    test -e $perfFile || failed "IS_DISKPERF" "missing ${perfFile}"
+}
+check_tmoutprofile() {
+    grep -sq "TMOUT=" /etc/profile /etc/profile.d/evolinux.sh || failed "IS_TMOUTPROFILE" "TMOUT is not set"
+}
+check_alert5boot() {
+    if is_debian_buster || is_debian_bullseye; then
+        grep -qs "^date" /usr/share/scripts/alert5.sh || failed "IS_ALERT5BOOT" "boot mail is not sent by alert5 init script"
+        if [ -f /etc/systemd/system/alert5.service ]; then
+            systemctl is-enabled alert5.service -q || failed "IS_ALERT5BOOT" "alert5 unit is not enabled"
+        else
+            failed "IS_ALERT5BOOT" "alert5 unit file is missing"
+        fi
+    else
+        if [ -n "$(find /etc/rc2.d/ -name 'S*alert5')" ]; then
+            grep -q "^date" /etc/rc2.d/S*alert5 || failed "IS_ALERT5BOOT" "boot mail is not sent by alert5 init script"
+        elif [ -n "$(find /etc/init.d/ -name 'alert5')" ]; then
+            grep -q "^date" /etc/init.d/alert5 || failed "IS_ALERT5BOOT" "boot mail is not sent by alert5 int script"
+        else
+            failed "IS_ALERT5BOOT" "alert5 init script is missing"
+        fi
     fi
-
-    if [ "$IS_NRPEDISKS" = 1 ]; then
-        NRPEDISKS=$(grep command.check_disk /etc/nagios/nrpe.cfg | grep ^command.check_disk[0-9] | sed -e "s/^command.check_disk\([0-9]\+\).*/\1/" | sort -n | tail -1)
-        DFDISKS=$(df -Pl | grep -E -v "(^Filesystem|/lib/init/rw|/dev/shm|udev|rpc_pipefs)" | wc -l)
-        [ "$NRPEDISKS" = "$DFDISKS" ] || echo 'IS_NRPEDISKS FAILED!'
+}
+check_alert5minifw() {
+    if is_debian_buster || is_debian_bullseye; then
+        grep -qs "^/etc/init.d/minifirewall" /usr/share/scripts/alert5.sh \
+            || failed "IS_ALERT5MINIFW" "Minifirewall is not started by alert5 script or script is missing"
+    else
+        if [ -n "$(find /etc/rc2.d/ -name 'S*alert5')" ]; then
+            grep -q "^/etc/init.d/minifirewall" /etc/rc2.d/S*alert5 \
+                || failed "IS_ALERT5MINIFW" "Minifirewall is not started by alert5 init script"
+        elif [ -n "$(find /etc/init.d/ -name 'alert5')" ]; then
+            grep -q "^/etc/init.d/minifirewall" /etc/init.d/alert5 \
+                || failed "IS_ALERT5MINIFW" "Minifirewall is not started by alert5 init script"
+        else
+            failed "IS_ALERT5MINIFW" "alert5 init script is missing"
+        fi
     fi
-
-    if [ "$IS_NRPEPID" = 1 ]; then
-        is_debianversion squeeze || (test -e /etc/nagios/nrpe.cfg && grep -q "^pid_file=/var/run/nagios/nrpe.pid" /etc/nagios/nrpe.cfg || echo 'IS_NRPEPID FAILED!')
+}
+check_minifw() {
+    /sbin/iptables -L -n | grep -q -E "^ACCEPT\s*all\s*--\s*31\.170\.8\.4\s*0\.0\.0\.0/0\s*$" \
+        || failed "IS_MINIFW" "minifirewall seems not started"
+}
+check_minifw_includes() {
+    if is_debian_bullseye; then
+        if grep -q -e '/sbin/iptables' -e '/sbin/ip6tables' "${MINIFW_FILE}"; then
+            failed "IS_MINIFWINCLUDES" "minifirewall has direct iptables invocations in ${MINIFW_FILE} that should go in /etc/minifirewall.d/"
+        fi
     fi
-
-    if [ "$IS_GRSECPROCS" = 1 ]; then
-        uname -a | grep -q grsec && ( grep -q ^command.check_total_procs..sudo /etc/nagios/nrpe.cfg && grep -A1 "^\[processes\]" /etc/munin/plugin-conf.d/munin-node | grep -q "^user root" || echo 'IS_GRSECPROCS FAILED!' )
+}
+check_nrpeperms() {
+    if [ -d /etc/nagios ]; then
+        nagiosDir="/etc/nagios"
+        actual=$(stat --format "%a" $nagiosDir)
+        expected="750"
+        test "$expected" = "$actual" || failed "IS_NRPEPERMS" "${nagiosDir} must be ${expected}"
     fi
-
-    if [ "$IS_APACHEMUNIN" = 1 ]; then
-        test -e /etc/apache2/apache2.conf && ( is_debianversion stretch || ( grep -E -q "^env.url.*/server-status-[[:alnum:]]{4}" /etc/munin/plugin-conf.d/munin-node && grep -E -q "/server-status-[[:alnum:]]{4}" /etc/apache2/apache2.conf || grep -E -q "/server-status-[[:alnum:]]{4}" /etc/apache2/apache2.conf /etc/apache2/mods-enabled/status.conf 2>/dev/null || echo 'IS_APACHEMUNIN FAILED!' ) )
-        test -e /etc/apache2/apache2.conf && ( is_debianversion stretch && ( test -h /etc/apache2/mods-enabled/status.load && test -h /etc/munin/plugins/apache_accesses && test -h /etc/munin/plugins/apache_processes && test -h /etc/munin/plugins/apache_accesses || echo 'IS_APACHEMUNIN FAILED!' ) )
+}
+check_minifwperms() {
+    if [ -f "$MINIFW_FILE" ]; then
+        actual=$(stat --format "%a" "$MINIFW_FILE")
+        expected="600"
+        test "$expected" = "$actual" || failed "IS_MINIFWPERMS" "${MINIFW_FILE} must be ${expected}"
     fi
-
-    # Verification mytop + Munin si MySQL
-    if [ "$IS_MYSQLUTILS" = 1 ]; then
-        is_installed mysql-server && ( grep -q mysqladmin /root/.my.cnf && test -x /usr/bin/mytop && grep -q debian-sys-maint /root/.mytop || echo 'IS_MYSQLUTILS FAILED!' )
+}
+check_nrpedisks() {
+    NRPEDISKS=$(grep command.check_disk /etc/nagios/nrpe.cfg | grep "^command.check_disk[0-9]" | sed -e "s/^command.check_disk\([0-9]\+\).*/\1/" | sort -n | tail -1)
+    DFDISKS=$(df -Pl | grep -c -E -v "(^Filesystem|/lib/init/rw|/dev/shm|udev|rpc_pipefs)")
+    test "$NRPEDISKS" = "$DFDISKS" || failed "IS_NRPEDISKS" "there must be $DFDISKS check_disk in nrpe.cfg"
+}
+check_nrpepid() {
+    if is_debian_bullseye; then
+        { test -e /etc/nagios/nrpe.cfg \
+            && grep -q "^pid_file=/run/nagios/nrpe.pid" /etc/nagios/nrpe.cfg;
+        } || failed "IS_NRPEPID" "missing or wrong pid_file directive in nrpe.cfg"
+    elif ! is_debian_squeeze; then
+        { test -e /etc/nagios/nrpe.cfg \
+            && grep -q "^pid_file=/var/run/nagios/nrpe.pid" /etc/nagios/nrpe.cfg;
+        } || failed "IS_NRPEPID" "missing or wrong pid_file directive in nrpe.cfg"
     fi
-
-    # Verification de la configuration du raid soft (mdadm)
-    if [ "$IS_RAIDSOFT" = 1 ]; then
-        test -e /proc/mdstat && grep -q md /proc/mdstat && \
-            ( grep -q "^AUTOCHECK=true" /etc/default/mdadm \
-        && grep -q "^START_DAEMON=true" /etc/default/mdadm \
-        && grep -qv "^MAILADDR ___MAIL___" /etc/mdadm/mdadm.conf || echo 'IS_RAIDSOFT FAILED!')
+}
+check_grsecprocs() {
+    if uname -a | grep -q grsec; then
+        { grep -q "^command.check_total_procs..sudo" /etc/nagios/nrpe.cfg \
+            && grep -A1 "^\[processes\]" /etc/munin/plugin-conf.d/munin-node | grep -q "^user root";
+        } || failed "IS_GRSECPROCS" "missing munin's plugin processes directive for grsec"
     fi
-
-    # Verification du LogFormat de AWStats
-    if [ "$IS_AWSTATSLOGFORMAT" = 1 ]; then
-        is_installed apache2.2-common && ( grep -qE '^LogFormat=1' /etc/awstats/awstats.conf.local || echo 'IS_AWSTATSLOGFORMAT FAILED!' )
+}
+check_apachemunin() {
+    if test -e /etc/apache2/apache2.conf; then
+        if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+            { test -h /etc/apache2/mods-enabled/status.load \
+                && test -h /etc/munin/plugins/apache_accesses \
+                && test -h /etc/munin/plugins/apache_processes \
+                && test -h /etc/munin/plugins/apache_volume;
+            } || failed "IS_APACHEMUNIN" "missing munin plugins for Apache"
+        else
+            pattern="/server-status-[[:alnum:]]{4,}"
+            { grep -r -q -s -E "^env.url.*${pattern}" /etc/munin/plugin-conf.d \
+                && { grep -q -s -E "${pattern}" /etc/apache2/apache2.conf \
+                    || grep -q -s -E "${pattern}" /etc/apache2/mods-enabled/status.conf;
+                };
+            } || failed "IS_APACHEMUNIN" "server status is not properly configured"
+        fi
     fi
-
-    # Verification de la présence de la config logrotate pour Munin
-    if [ "$IS_MUNINLOGROTATE" = 1 ]; then
-        ( test -e /etc/logrotate.d/munin-node && test -e /etc/logrotate.d/munin ) || echo 'IS_MUNINLOGROTATE FAILED!'
-    fi
-
-    # Verification de la présence de metche
-    #if [ "$IS_METCHE" = 1 ]; then
-    #	is_installed metche || echo 'IS_METCHE FAILED!'
-    #fi
-
-    # Verification de l'activation de Squid dans le cas d'un pack mail
-    if [ "$IS_SQUID" = 1 ]; then
-        squidconffile=/etc/squid*/squid.conf
-        is_debianversion stretch && squidconffile=/etc/squid/evolinux-custom.conf
-        is_pack_web && ( is_installed squid || is_installed squid3 \
-        && grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -m owner --uid-owner proxy -j ACCEPT" $MINIFW_FILE \
-        && grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -d `hostname -i` -j ACCEPT" $MINIFW_FILE \
-        && grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -d 127.0.0.(1|0/8) -j ACCEPT" $MINIFW_FILE \
-        && grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -j REDIRECT --to-port.* `grep http_port $squidconffile | cut -f 2 -d " "`" $MINIFW_FILE || echo 'IS_SQUID FAILED!' )
-    fi
-
-    if [ "$IS_EVOMAINTENANCE_FW" = 1 ]; then
-        if [ -f "$MINIFW_FILE" ]; then
-            rulesNumber=$(grep -c "/sbin/iptables -A INPUT -p tcp --sport 5432 --dport 1024:65535 -s .* -m state --state ESTABLISHED,RELATED -j ACCEPT" "$MINIFW_FILE")
-            if [ "$rulesNumber" -lt 4 ]; then
-                echo 'IS_EVOMAINTENANCE_FW FAILED!'
+}
+# Verification mytop + Munin si MySQL
+check_mysqlutils() {
+    MYSQL_ADMIN=${MYSQL_ADMIN:-mysqladmin}
+    if is_installed mysql-server; then
+        # With Debian 11 and later, root can connect to MariaDB with the socket
+        if is_debian_wheezy || is_debian_jessie ||  is_debian_stretch || is_debian_buster; then
+            # You can configure MYSQL_ADMIN in evocheck.cf
+            if ! grep -qs "^user *= *${MYSQL_ADMIN}" /root/.my.cnf; then
+                failed "IS_MYSQLUTILS" "${MYSQL_ADMIN} missing in /root/.my.cnf"
             fi
         fi
-    fi
-
-    # Verification de la conf et de l'activation de mod-deflate
-    if [ "$IS_MODDEFLATE" = 1 ]; then
-        f=/etc/apache2/mods-enabled/deflate.conf
-        is_installed apache2.2 && (test -e $f && grep -q "AddOutputFilterByType DEFLATE text/html text/plain text/xml" $f \
-        && grep -q "AddOutputFilterByType DEFLATE text/css" $f \
-        && grep -q "AddOutputFilterByType DEFLATE application/x-javascript application/javascript" $f || echo 'IS_MODDEFLATE FAILED!')
-    fi
-
-    # Verification de la conf log2mail
-    if [ "$IS_LOG2MAILRUNNING" = 1 ]; then
-        is_pack_web && (is_installed log2mail && pgrep log2mail >/dev/null || echo 'IS_LOG2MAILRUNNING')
-    fi
-    if [ "$IS_LOG2MAILAPACHE" = 1 ]; then
-        if is_debianversion stretch; then
-            conf=/etc/log2mail/config/apache
-        else
-            conf=/etc/log2mail/config/default
+        if ! test -x /usr/bin/mytop; then
+            if ! test -x /usr/local/bin/mytop; then
+                failed "IS_MYSQLUTILS" "mytop binary missing"
+            fi
+        fi
+        if ! grep -qs '^user *=' /root/.mytop; then
+            failed "IS_MYSQLUTILS" "credentials missing in /root/.mytop"
         fi
-        is_pack_web && ( is_installed log2mail && grep -q "^file = /var/log/apache2/error.log" $conf 2>/dev/null || echo 'IS_LOG2MAILAPACHE FAILED!' )
     fi
-    if [ "$IS_LOG2MAILMYSQL" = 1 ]; then
-        is_pack_web && ( is_installed log2mail && grep -q "^file = /var/log/syslog" /etc/log2mail/config/{default,mysql,mysql.conf} 2>/dev/null || echo 'IS_LOG2MAILMYSQL FAILED!' )
+}
+# Verification de la configuration du raid soft (mdadm)
+check_raidsoft() {
+    if test -e /proc/mdstat && grep -q md /proc/mdstat; then
+        { grep -q "^AUTOCHECK=true" /etc/default/mdadm \
+            && grep -q "^START_DAEMON=true" /etc/default/mdadm \
+            && grep -qv "^MAILADDR ___MAIL___" /etc/mdadm/mdadm.conf;
+        } || failed "IS_RAIDSOFT" "missing or wrong config for mdadm"
     fi
-    if [ "$IS_LOG2MAILSQUID" = 1 ]; then
-        is_pack_web && ( is_installed log2mail && grep -q "^file = /var/log/squid.*/access.log" \
-            /etc/log2mail/config/* 2>/dev/null || echo 'IS_LOG2MAILSQUID FAILED!' )
+}
+# Verification du LogFormat de AWStats
+check_awstatslogformat() {
+    if is_installed apache2 awstats; then
+        awstatsFile="/etc/awstats/awstats.conf.local"
+        grep -qE '^LogFormat=1' $awstatsFile \
+            || failed "IS_AWSTATSLOGFORMAT" "missing or wrong LogFormat directive in $awstatsFile"
     fi
-
-    # Verification si bind est chroote
-    if [ "$IS_BINDCHROOT" = 1 ]; then
-        if is_installed bind9 && $(netstat -utpln |grep "/named" |grep :53 |grep -qvE "(127.0.0.1|::1)"); then
+}
+# Verification de la présence de la config logrotate pour Munin
+check_muninlogrotate() {
+    { test -e /etc/logrotate.d/munin-node \
+        && test -e /etc/logrotate.d/munin;
+    } || failed "IS_MUNINLOGROTATE" "missing lorotate file for munin"
+}
+# Verification de l'activation de Squid dans le cas d'un pack mail
+check_squid() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        squidconffile="/etc/squid/evolinux-custom.conf"
+    else
+        squidconffile="/etc/squid*/squid.conf"
+    fi
+    if is_pack_web && (is_installed squid || is_installed squid3); then
+        host=$(hostname -i)
+        # shellcheck disable=SC2086
+        http_port=$(grep -E "^http_port\s+[0-9]+" $squidconffile | awk '{ print $2 }')
+        { grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -m owner --uid-owner proxy -j ACCEPT" "$MINIFW_FILE" \
+            && grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -d $host -j ACCEPT" "$MINIFW_FILE" \
+            && grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -d 127.0.0.(1|0/8) -j ACCEPT" "$MINIFW_FILE" \
+            && grep -qE "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -j REDIRECT --to-port.* $http_port" "$MINIFW_FILE";
+        } || grep -qE "^PROXY='?on'?" "$MINIFW_FILE" \
+          || failed "IS_SQUID" "missing squid rules in minifirewall"
+    fi
+}
+check_evomaintenance_fw() {
+    if [ -f "$MINIFW_FILE" ]; then
+        hook_db=$(grep -E '^\s*HOOK_DB' /etc/evomaintenance.cf | tr -d ' ' | cut -d= -f2)
+        rulesNumber=$(grep -c "/sbin/iptables -A INPUT -p tcp --sport 5432 --dport 1024:65535 -s .* -m state --state ESTABLISHED,RELATED -j ACCEPT" "$MINIFW_FILE")
+        if [ "$hook_db" = "1" ] && [ "$rulesNumber" -lt 2 ]; then
+            failed "IS_EVOMAINTENANCE_FW" "HOOK_DB is enabled but missing evomaintenance rules in minifirewall"
+        fi
+    fi
+}
+# Verification de la conf et de l'activation de mod-deflate
+check_moddeflate() {
+    f=/etc/apache2/mods-enabled/deflate.conf
+    if is_installed apache2.2; then
+        { test -e $f && grep -q "AddOutputFilterByType DEFLATE text/html text/plain text/xml" $f \
+            && grep -q "AddOutputFilterByType DEFLATE text/css" $f \
+            && grep -q "AddOutputFilterByType DEFLATE application/x-javascript application/javascript" $f;
+        } || failed "IS_MODDEFLATE" "missing AddOutputFilterByType directive for apache mod deflate"
+    fi
+}
+# Verification de la conf log2mail
+check_log2mailrunning() {
+    if is_pack_web && is_installed log2mail; then
+        pgrep log2mail >/dev/null || failed "IS_LOG2MAILRUNNING" "log2mail is not running"
+    fi
+}
+check_log2mailapache() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        conf=/etc/log2mail/config/apache
+    else
+        conf=/etc/log2mail/config/default
+    fi
+    if is_pack_web && is_installed log2mail; then
+        grep -s -q "^file = /var/log/apache2/error.log" $conf \
+            || failed "IS_LOG2MAILAPACHE" "missing log2mail directive for apache"
+    fi
+}
+check_log2mailmysql() {
+    if is_pack_web && is_installed log2mail; then
+        grep -s -q "^file = /var/log/syslog" /etc/log2mail/config/{default,mysql,mysql.conf} \
+            || failed "IS_LOG2MAILMYSQL" "missing log2mail directive for mysql"
+    fi
+}
+check_log2mailsquid() {
+    if is_pack_web && is_installed log2mail; then
+        grep -s -q "^file = /var/log/squid.*/access.log" /etc/log2mail/config/* \
+            || failed "IS_LOG2MAILSQUID" "missing log2mail directive for squid"
+    fi
+}
+# Verification si bind est chroote
+check_bindchroot() {
+    if is_installed bind9; then
+        if netstat -utpln | grep "/named" | grep :53 | grep -qvE "(127.0.0.1|::1)"; then
             if grep -q '^OPTIONS=".*-t' /etc/default/bind9 && grep -q '^OPTIONS=".*-u' /etc/default/bind9; then
-                if [ "$(md5sum /usr/sbin/named |cut -f 1 -d ' ')" != "$(md5sum /var/chroot-bind/usr/sbin/named |cut -f 1 -d ' ')" ]; then
-                    echo 'IS_BINDCHROOT FAILED!'
+                md5_original=$(md5sum /usr/sbin/named | cut -f 1 -d ' ')
+                md5_chrooted=$(md5sum /var/chroot-bind/usr/sbin/named | cut -f 1 -d ' ')
+                if [ "$md5_original" != "$md5_chrooted" ]; then
+                    failed "IS_BINDCHROOT" "the chrooted bind binary is different than the original binary"
                 fi
             else
-                echo 'IS_BINDCHROOT FAILED!'
+                failed "IS_BINDCHROOT" "bind process is not chrooted"
             fi
         fi
     fi
-
-    # Verification de la présence du depot volatile
-    if [ "$IS_REPVOLATILE" = 1 ]; then
-        test `cat /etc/debian_version |cut -d "." -f 1` -eq 5 && (grep -qE "^deb http://volatile.debian.org/debian-volatile" /etc/apt/sources.list || echo 'IS_REPVOLATILE FAILED!')
-            test `cat /etc/debian_version |cut -d "." -f 1` -eq 6 && (grep -qE "^deb.*squeeze-updates" /etc/apt/sources.list || echo 'IS_REPVOLATILE FAILED!')
+}
+# Verification de la présence du depot volatile
+check_repvolatile() {
+    if is_debian_lenny; then
+        grep -qE "^deb http://volatile.debian.org/debian-volatile" /etc/apt/sources.list \
+            || failed "IS_REPVOLATILE" "missing debian-volatile repository"
     fi
-
-    # /etc/network/interfaces should be present, we don't manage systemd-network yet
-    if [ "$IS_NETWORK_INTERFACES" = 1 ]; then
-        if ! test -f /etc/network/interfaces; then
-            echo "IS_NETWORK_INTERFACES FAILED!"
-            IS_AUTOIF=0
-            IS_INTERFACESGW=0
+    if is_debian_squeeze; then
+        grep -qE "^deb.*squeeze-updates" /etc/apt/sources.list \
+            || failed "IS_REPVOLATILE" "missing squeeze-updates repository"
+    fi
+}
+# /etc/network/interfaces should be present, we don't manage systemd-network yet
+check_network_interfaces() {
+    if ! test -f /etc/network/interfaces; then
+        IS_AUTOIF=0
+        IS_INTERFACESGW=0
+        failed "IS_NETWORK_INTERFACES" "systemd network configuration is not supported yet"
+    fi
+}
+# Verify if all if are in auto
+check_autoif() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        interfaces=$(/sbin/ip address show up | grep "^[0-9]*:" | grep -E -v "(lo|vnet|docker|veth|tun|tap|macvtap|vrrp|lxcbr|wg)" | cut -d " " -f 2 | tr -d : | cut -d@ -f1 | tr "\n" " ")
+    else
+        interfaces=$(/sbin/ifconfig -s | tail -n +2 | grep -E -v "^(lo|vnet|docker|veth|tun|tap|macvtap|vrrp)" | cut -d " " -f 1 |tr "\n" " ")
+    fi
+    for interface in $interfaces; do
+        if ! grep -q "^auto $interface" /etc/network/interfaces; then
+            failed "IS_AUTOIF" "Network interface \`${interface}' is not set to auto"
+            test "${VERBOSE}" = 1 || break
         fi
-    fi
-
-    # Verify if all if are in auto
-    if [ "$IS_AUTOIF" = 1 ]; then
-        is_debianversion stretch || for interface in `/sbin/ifconfig -s |tail -n +2 |grep -E -v "^(lo|vnet|docker|veth|tun|tap|macvtap)" |cut -d " " -f 1 |tr "\n" " "`; do
-                    grep -q "^auto $interface" /etc/network/interfaces || (echo 'IS_AUTOIF FAILED!' && break)
-            done
-        is_debianversion stretch && for interface in `/sbin/ip address show up | grep ^[0-9]*: |grep -E -v "(lo|vnet|docker|veth|tun|tap|macvtap)" | cut -d " " -f 2 |tr -d : |cut -d@ -f1 |tr "\n" " "`; do
-                    grep -q "^auto $interface" /etc/network/interfaces || (echo 'IS_AUTOIF FAILED!' && break)
-            done
-    fi
-
-    # Network conf verification
-    if [ "$IS_INTERFACESGW" = 1 ]; then
-        number=$(grep -Ec "^[^#]*gateway [0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" /etc/network/interfaces)
-        test $number -gt 1 && echo 'IS_INTERFACESGW FAILED!'
-        number=$(grep -Ec "^[^#]*gateway [0-9a-fA-F]+:" /etc/network/interfaces)
-        test $number -gt 1 && echo 'IS_INTERFACESGW FAILED!'
-    fi
-
-    # Verification de la mise en place d'evobackup
-    if [ "$IS_EVOBACKUP" = 1 ]; then
-        ls /etc/cron* |grep -q "evobackup" || echo 'IS_EVOBACKUP FAILED!'
-    fi
-
-    # Verification de la presence du userlogrotate
-    if [ "$IS_USERLOGROTATE" = 1 ]; then
-        is_pack_web && (test -x /etc/cron.weekly/userlogrotate || echo 'IS_USERLOGROTATE FAILED!')
-    fi
-
-
-    # Verification de la syntaxe de la conf d'Apache
-    if [ "$IS_APACHECTL" = 1 ]; then
-        is_installed apache2.2-common && (/usr/sbin/apache2ctl configtest 2>&1 |grep -q "^Syntax OK$" || echo 'IS_APACHECTL FAILED!')
-    fi
-
-    # Check if there is regular files in Apache sites-enabled.
-    if [ "$IS_APACHESYMLINK" = 1 ]; then
-        is_installed apache2.2-common && \
-            (stat -c %F /etc/apache2/sites-enabled/* | grep -q regular && echo 'IS_APACHESYMLINK FAILED!')
-    fi
-
-    # Check if there is real IP addresses in Allow/Deny directives (no trailing space, inline comments or so).
-    if [ "$IS_APACHEIPINALLOW" = 1 ]; then
-        # Note: Replace "exit 1" by "print" in Perl code to debug it.
-        is_installed apache2.2-common && \
-            (grep -IrE "^[^#] *(Allow|Deny) from" /etc/apache2/ |grep -iv "from all" |grep -iv "env=" |perl -ne 'exit 1 unless (/from( [\da-f:.\/]+)+$/i)' || echo 'IS_APACHEIPINALLOW FAILED!')
-    fi
-
-    # Check if default Apache configuration file for munin is absent (or empty or commented).
-    if [ "$IS_MUNINAPACHECONF" = 1 ]; then
-        if is_debianversion squeeze || is_debianversion wheezy; then
-            muninconf="/etc/apache2/conf.d/munin"
-        else
-            muninconf="/etc/apache2/conf-available/munin.conf"
-        fi
-        is_installed apache2.2-common && ([ -e $muninconf ] && grep -vEq "^( |\t)*#" $muninconf && echo 'IS_MUNINAPACHECONF FAILED!')
-    fi
-
-    # Verification de la priorité du package samba si les backports sont utilisés
-    if [ "$IS_SAMBAPINPRIORITY" = 1 ]; then
-        is_pack_samba && grep -qrE "^[^#].*backport" /etc/apt/sources.list{,.d} && ( priority=`grep -E -A2 "^Package:.*samba" /etc/apt/preferences |grep -A1 "^Pin: release a=lenny-backports" |grep "^Pin-Priority:" |cut -f2 -d" "` && test $priority -gt 500 || echo 'IS_SAMBAPINPRIORITY FAILED!' )
-    fi
-
-    # Verification si le système doit redémarrer suite màj kernel.
-    if [ "$IS_KERNELUPTODATE" = 1 ]; then
-        if is_installed linux-image* && [ $(date -d $(ls --full-time -lcrt /boot | tail -n1 | tr -s " " | cut -d " " -f 6) +%s) -gt $(($(date +%s) - $(cut -f1 -d '.' /proc/uptime))) ]; then
-            echo 'IS_KERNELUPTODATE FAILED!'
-        fi
-    fi
-
-    # Check if the server is running for more than a year.
-    if [ "$IS_UPTIME" = 1 ]; then
-        if is_installed linux-image* && [ $(date -d "now - 2 year" +%s) -gt $(($(date +%s) - $(cut -f1 -d '.' /proc/uptime))) ]; then
-            echo 'IS_UPTIME FAILED!'
-        fi
-    fi
-
-    # Check if munin-node running and RRD files are up to date.
-    if [ "$IS_MUNINRUNNING" = 1 ]; then
-        pgrep munin-node >/dev/null || echo 'IS_MUNINRUNNING FAILED!'
-        [ "$(stat -c "%Y" /var/lib/munin/*/*load-g.rrd |sort |tail -1)" -lt $(date +"%s" -d "now - 10 minutes") ] && echo 'IS_MUNINRUNNING FAILED!'
-        grep -q "^graph_strategy cron" /etc/munin/munin.conf && ([ "$(stat -c "%Y" /var/cache/munin/www/*/*/load-day.png |sort |tail -1)" -lt $(date +"%s" -d "now - 10 minutes") ]) && echo 'IS_MUNINRUNNING FAILED!'
-    fi
-
-    # Check if files in /home/backup/ are up-to-date
-    if [ "$IS_BACKUPUPTODATE" = 1 ]; then
-        [ -d /home/backup/ ] && for file in /home/backup/*; do
-            if [ -f $file ] && [ $(stat -c "%Y" $file) -lt $(date +"%s" -d "now - 2 day") ]; then
-                echo 'IS_BACKUPUPTODATE FAILED!'
-                break;
+    done
+}
+# Network conf verification
+check_interfacesgw() {
+    number=$(grep -Ec "^[^#]*gateway [0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" /etc/network/interfaces)
+    test "$number" -gt 1 && failed "IS_INTERFACESGW" "there is more than 1 IPv4 gateway"
+    number=$(grep -Ec "^[^#]*gateway [0-9a-fA-F]+:" /etc/network/interfaces)
+    test "$number" -gt 1 && failed "IS_INTERFACESGW" "there is more than 1 IPv6 gateway"
+}
+# Verification de l’état du service networking
+check_networking_service() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if systemctl is-enabled networking.service > /dev/null; then
+            if ! systemctl is-active networking.service > /dev/null; then
+                failed "IS_NETWORKING_SERVICE" "networking.service is not active"
             fi
-        done
-    fi
-
-    # Check if /etc/.git/ has read/write permissions for root only.
-    if [ "$IS_GITPERMS" = 1 ]; then
-        test -d /etc/.git && [ "$(stat -c "%a" /etc/.git/)" = "700" ] || echo 'IS_GITPERMS FAILED!'
-    fi
-
-    # Check if no package has been upgraded since $limit.
-    if [ "$IS_NOTUPGRADED" = 1 ]; then
-        last_upgrade=$(date +%s -d $(zgrep -h upgrade /var/log/dpkg.log* |sort -n |tail -1 |cut -f1 -d ' '))
-        if grep -q '^mailto="listupgrade-todo@' /etc/evolinux/listupgrade.cnf \
-        || grep -q -E '^[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[^\*]' /etc/cron.d/listupgrade; then
-            # Manual upgrade process
-            limit=$(date +%s -d "now - 180 days")
-        else
-            # Regular process
-            limit=$(date +%s -d "now - 90 days")
-        fi
-        if [ -f /var/log/evolinux/00_prepare_system.log ]; then
-            install_date=$(stat -c %Z /var/log/evolinux/00_prepare_system.log)
-        else
-            install_date=0
-        fi
-        [ $install_date -lt $limit ] && [ $last_upgrade -lt $limit ] && echo 'IS_NOTUPGRADED FAILED!'
-    fi
-
-    # Check if reserved blocks for root is at least 5% on every mounted partitions.
-    if [ "$IS_TUNE2FS_M5" = 1 ]; then
-        parts=$(grep -E "ext(3|4)" /proc/mounts | cut -d ' ' -f1 | tr -s '\n' ' ')
-        for part in $parts; do
-            blockCount=$(dumpe2fs -h "$part" 2>/dev/null | grep -e "Block count:" | grep -Eo "[0-9]+")
-            # If buggy partition, skip it.
-            if [ -z $blockCount ]; then
-                continue
-            fi
-            reservedBlockCount=$(dumpe2fs -h "$part" 2>/dev/null | grep -e "Reserved block count:" | grep -Eo "[0-9]+")
-            percentage=$(python -c "print(int(round(float(${reservedBlockCount})/${blockCount}*100)))")
-            if [ "$percentage" -lt 5 ]; then
-                echo 'IS_TUNE2FS_M5 FAILED!'
-                # Set debug to 1, to displays which partitions has less than 5%
-                debug=0
-                if [ "$debug" -eq 1 ]; then
-                    echo "Partition $part has less than 5% reserved blocks!"
-                fi
-            fi
-        done
-    fi
-
-    if [ "$IS_EVOLINUXSUDOGROUP" = 1 ]; then
-        if is_debianversion stretch; then
-            (grep -q ^evolinux-sudo: /etc/group \
-                && grep -q '^%evolinux-sudo  ALL=(ALL:ALL) ALL' /etc/sudoers.d/evolinux) || echo 'IS_EVOLINUXSUDOGROUP FAILED!'
         fi
     fi
+}
+# Verification de la mise en place d'evobackup
+check_evobackup() {
+    evobackup_found=$(find /etc/cron* -name '*evobackup*' | wc -l)
+    test "$evobackup_found" -gt 0 || failed "IS_EVOBACKUP" "missing evobackup cron"
+}
+# Vérification de l'exclusion des montages (NFS) dans les sauvegardes
+check_evobackup_exclude_mount() {
+    excludes_file=$(mktemp --tmpdir="${TMPDIR:-/tmp}" "evocheck.evobackup_exclude_mount.XXXXX")
+    files_to_cleanup="${files_to_cleanup} ${excludes_file}"
 
-    if [ "$IS_USERINADMGROUP" = 1 ]; then
-        if is_debianversion stretch; then
-            for user in $(grep ^evolinux-sudo: /etc/group |awk -F: '{print $4}' |tr ',' ' '); do
-                groups $user |grep -q adm || echo 'IS_USERINADMGROUP FAILED!'
-            done
-        fi
-    fi
-
-    if [ "$IS_APACHE2EVOLINUXCONF" = 1 ]; then
-        if (test -d /etc/apache2 && is_debianversion stretch); then
-            (test -L /etc/apache2/conf-enabled/z-evolinux-defaults.conf \
-                && test -L /etc/apache2/conf-enabled/zzz-evolinux-custom.conf \
-                && test -f /etc/apache2/ipaddr_whitelist.conf) || echo 'IS_APACHE2EVOLINUXCONF FAILED!'
-        fi
-    fi
-
-    if [ "$IS_BACKPORTSCONF" = 1 ]; then
-        if is_debianversion stretch; then
-            grep -q backports /etc/apt/sources.list && echo 'IS_BACKPORTSCONF FAILED!'
-            grep -q backports /etc/apt/sources.list.d/*.list 2>/dev/null && (grep -q backports /etc/apt/preferences.d/* || echo 'IS_BACKPORTSCONF FAILED!')
-        fi
-    fi
-
-    if [ "$IS_BIND9MUNIN" = 1 ]; then
-        if is_debianversion stretch && is_installed bind9; then
-            (test -L /etc/munin/plugins/bind9 && test -e /etc/munin/plugin-conf.d/bind9) || echo 'IS_BIND9MUNIN FAILED!'
-        fi
-    fi
-
-    if [ "$IS_BIND9LOGROTATE" = 1 ]; then
-        if is_debianversion stretch && is_installed bind9; then
-            test -e /etc/logrotate.d/bind9 || echo 'IS_BIND9LOGROTATE FAILED!'
-        fi
-    fi
-
-    if [ "$IS_BROADCOMFIRMWARE" = 1 ]; then
-        if lspci | grep -q 'NetXtreme II'; then
-            (is_installed firmware-bnx2 && grep -q "^deb http://mirror.evolix.org/debian.* non-free" /etc/apt/sources.list) || echo 'IS_BROADCOMFIRMWARE FAILED!'
-        fi
-    fi
-
-    if [ "$IS_HARDWARERAIDTOOL" = 1 ]; then
-        lspci |grep -q 'MegaRAID SAS' && (is_installed megacli && (is_installed megaclisas-status || is_installed megaraidsas-status) || echo 'IS_HARDWARERAIDTOOL FAILED!')
-        lspci |grep -q 'Hewlett-Packard Company Smart Array' && (is_installed cciss-vol-status || echo 'IS_HARDWARERAIDTOOL FAILED!')
-    fi
-
-    if [ "$IS_LOG2MAILSYSTEMDUNIT" = 1 ]; then
-        if is_debianversion stretch; then
-            (systemctl -q is-active log2mail.service && test -f /etc/systemd/system/log2mail.service && ! test -f /etc/init.d/log2mail) || echo 'IS_LOG2MAILSYSTEMDUNIT FAILED!'
-        fi
-    fi
-
-    if [ "$IS_LISTUPGRADE" = 1 ]; then
-        (test -f /etc/cron.d/listupgrade && test -x /usr/share/scripts/listupgrade.sh) || echo 'IS_LISTUPGRADE FAILED!'
-    fi
-
-    if [ "$IS_MARIADBEVOLINUXCONF" = 1 ]; then
-        if is_debianversion stretch && is_installed mariadb-server; then
-            (test -f /etc/mysql/mariadb.conf.d/z-evolinux-defaults.cnf \
-                && test -f /etc/mysql/mariadb.conf.d/zzz-evolinux-custom.cnf) || echo 'IS_MARIADBEVOLINUXCONF FAILED!'
-        fi
-    fi
-
-    if [ "$IS_SQL_BACKUP" = 1 ]; then
-        if (is_installed "mysql-server" || is_installed "mariadb-server"); then
-            # You could change the default path in /etc/evocheck.cf
-            SQL_BACKUP_PATH=${SQL_BACKUP_PATH:-"/home/backup/mysql.bak.gz"}
-            test -f "$SQL_BACKUP_PATH" || echo 'IS_SQL_BACKUP FAILED!'
-        fi
-    fi
-
-    if [ "$IS_POSTGRES_BACKUP" = 1 ]; then
-        if is_installed "postgresql-9*"; then
-            # If you use something like barman, you should deactivate this check
-            # You could change the default path in /etc/evocheck.cf
-            POSTGRES_BACKUP_PATH=${POSTGRES_BACKUP_PATH:-"/home/backup/pg.dump.bak"}
-            test -f "$POSTGRES_BACKUP_PATH" || echo 'IS_POSTGRES_BACKUP FAILED!'
-        fi
-    fi
-
-    if [ "$IS_MONGO_BACKUP" = 1 ]; then
-        if is_installed "mongodb-org-server"; then
-            # You could change the default path in /etc/evocheck.cf
-            MONGO_BACKUP_PATH=${MONGO_BACKUP_PATH:-"/home/backup/mongodump"}
-            if [ -d "$MONGO_BACKUP_PATH" ]; then
-                for file in ${MONGO_BACKUP_PATH}/*/*.{json,bson}; do
-                    # Skip indexes file.
-                    if ! [[ "$file" =~ indexes ]]; then
-                        if [ -f $file ] && [ $(stat -c "%Y" $file) -lt $(date +"%s" -d "now - 2 day") ]; then
-                            echo 'IS_MONGO_BACKUP FAILED!'
-                        fi
-                    fi
+    # shellcheck disable=SC2044
+    for evobackup_file in $(find /etc/cron* -name '*evobackup*' | grep -v -E ".disabled$"); do
+        # if the file seems to be a backup script, with an Rsync invocation
+        if grep -q "^\s*rsync" "${evobackup_file}"; then
+            # If rsync is not limited by "one-file-system"
+            # then we verify that every mount is excluded
+            if ! grep -q -- "^\s*--one-file-system" "${evobackup_file}"; then
+                grep -- "--exclude " "${evobackup_file}" | grep -E -o "\"[^\"]+\"" | tr -d '"' > "${excludes_file}"
+                not_excluded=$(findmnt --type nfs,nfs4,fuse.sshfs, -o target --noheadings | grep -v -f "${excludes_file}")
+                for mount in ${not_excluded}; do
+                    failed "IS_EVOBACKUP_EXCLUDE_MOUNT" "${mount} is not excluded from ${evobackup_file} backup script"
                 done
+            fi
+        fi
+    done
+}
+# Verification de la presence du userlogrotate
+check_userlogrotate() {
+    if is_pack_web; then
+        test -x /etc/cron.weekly/userlogrotate || failed "IS_USERLOGROTATE" "missing userlogrotate cron"
+    fi
+}
+# Verification de la syntaxe de la conf d'Apache
+check_apachectl() {
+    if is_installed apache2; then
+        /usr/sbin/apache2ctl configtest 2>&1 | grep -q "^Syntax OK$" \
+            || failed "IS_APACHECTL" "apache errors detected, run a configtest"
+    fi
+}
+# Check if there is regular files in Apache sites-enabled.
+check_apachesymlink() {
+    if is_installed apache2; then
+        apacheFind=$(find /etc/apache2/sites-enabled ! -type l -type f -print)
+        nbApacheFind=$(wc -m <<< "$apacheFind")
+        if [[ $nbApacheFind -gt 1 ]]; then
+            if [[ $VERBOSE == 1 ]]; then
+                while read -r line; do
+                    failed "IS_APACHESYMLINK" "Not a symlink: $line"
+                done <<< "$apacheFind"
             else
-                echo 'IS_MONGO_BACKUP FAILED!'
+                failed "IS_APACHESYMLINK"
             fi
         fi
     fi
-
-    if [ "$IS_LDAP_BACKUP" = 1 ]; then
-        if is_installed slapd; then
-            # You could change the default path in /etc/evocheck.cf
-            LDAP_BACKUP_PATH=${LDAP_BACKUP_PATH:-"/home/backup/ldap.bak"}
-            test -f "$LDAP_BACKUP_PATH" || echo 'IS_LDAP_BACKUP FAILED!'
+}
+# Check if there is real IP addresses in Allow/Deny directives (no trailing space, inline comments or so).
+check_apacheipinallow() {
+    # Note: Replace "exit 1" by "print" in Perl code to debug it.
+    if is_installed apache2; then
+        grep -IrE "^[^#] *(Allow|Deny) from" /etc/apache2/ \
+            | grep -iv "from all" \
+            | grep -iv "env=" \
+            | perl -ne 'exit 1 unless (/from( [\da-f:.\/]+)+$/i)' \
+            || failed "IS_APACHEIPINALLOW" "bad (Allow|Deny) directives in apache"
+    fi
+}
+# Check if default Apache configuration file for munin is absent (or empty or commented).
+check_muninapacheconf() {
+    if is_debian_squeeze || is_debian_wheezy; then
+        muninconf="/etc/apache2/conf.d/munin"
+    else
+        muninconf="/etc/apache2/conf-available/munin.conf"
+    fi
+    if is_installed apache2; then
+        test -e $muninconf && grep -vEq "^( |\t)*#" "$muninconf" \
+            && failed "IS_MUNINAPACHECONF" "default munin configuration may be commented or disabled"
+    fi
+}
+# Verification de la priorité du package samba si les backports sont utilisés
+check_sambainpriority() {
+    if is_debian_lenny && is_pack_samba; then
+        if grep -qrE "^[^#].*backport" /etc/apt/sources.list{,.d}; then
+            priority=$(grep -E -A2 "^Package:.*samba" /etc/apt/preferences | grep -A1 "^Pin: release a=lenny-backports" | grep "^Pin-Priority:" | cut -f2 -d" ")
+            test "$priority" -gt 500 || failed "IS_SAMBAPINPRIORITY" "bad pinning priority for samba"
         fi
     fi
-
-    if [ "$IS_REDIS_BACKUP" = 1 ]; then
-        if is_installed redis-server; then
-            # You could change the default path in /etc/evocheck.cf
-            REDIS_BACKUP_PATH=${REDIS_BACKUP_PATH:-"/home/backup/dump.rdb"}
-            test -f "$REDIS_BACKUP_PATH" || echo 'IS_REDIS_BACKUP FAILED!'
+}
+# Verification si le système doit redémarrer suite màj kernel.
+check_kerneluptodate() {
+    if is_installed linux-image*; then
+        # shellcheck disable=SC2012
+        kernel_installed_at=$(date -d "$(ls --full-time -lcrt /boot | tail -n1 | awk '{print $6}')" +%s)
+        last_reboot_at=$(($(date +%s) - $(cut -f1 -d '.' /proc/uptime)))
+        if [ "$kernel_installed_at" -gt "$last_reboot_at" ]; then
+            failed "IS_KERNELUPTODATE" "machine is running an outdated kernel, reboot advised"
         fi
     fi
-
-    if [ "$IS_ELASTIC_BACKUP" = 1 ]; then
-        if is_installed elasticsearch; then
-            # You could change the default path in /etc/evocheck.cf
-            ELASTIC_BACKUP_PATH=${ELASTIC_BACKUP_PATH:-"/home/backup/elasticsearch"}
-            test -d "$ELASTIC_BACKUP_PATH" || echo 'IS_ELASTIC_BACKUP FAILED!'
+}
+# Check if the server is running for more than a year.
+check_uptime() {
+    if is_installed linux-image*; then
+        limit=$(date -d "now - 2 year" +%s)
+        last_reboot_at=$(($(date +%s) - $(cut -f1 -d '.' /proc/uptime)))
+        if [ "$limit" -gt "$last_reboot_at" ]; then
+            failed "IS_UPTIME" "machine has an uptime of more than 2 years, reboot on new kernel advised"
         fi
     fi
+}
+# Check if munin-node running and RRD files are up to date.
+check_muninrunning() {
+    if ! pgrep munin-node >/dev/null; then
+        failed "IS_MUNINRUNNING" "Munin is not running"
+    elif [ -d "/var/lib/munin/" ] && [ -d "/var/cache/munin/" ]; then
+        limit=$(date +"%s" -d "now - 10 minutes")
 
-    if [ "$IS_MARIADBSYSTEMDUNIT" = 1 ]; then
-        if is_debianversion stretch && is_installed mariadb-server; then
-            (systemctl -q is-active mariadb.service && test -f /etc/systemd/system/mariadb.service.d/evolinux.conf) || echo 'IS_MARIADBSYSTEMDUNIT FAILED!'
+        if [ -n "$(find /var/lib/munin/ -name '*load-g.rrd')" ]; then
+            updated_at=$(stat -c "%Y" /var/lib/munin/*/*load-g.rrd |sort |tail -1)
+            [ "$limit" -gt "$updated_at" ] && failed "IS_MUNINRUNNING" "Munin load RRD has not been updated in the last 10 minutes"
+        else
+            failed "IS_MUNINRUNNING" "Munin is not installed properly (load RRD not found)"
+        fi
+
+        if [ -n "$(find  /var/cache/munin/www/ -name 'load-day.png')" ]; then
+            updated_at=$(stat -c "%Y" /var/cache/munin/www/*/*/load-day.png |sort |tail -1)
+            grep -sq "^graph_strategy cron" /etc/munin/munin.conf && [ "$limit" -gt "$updated_at" ] && failed "IS_MUNINRUNNING" "Munin load PNG has not been updated in the last 10 minutes"
+        else
+            failed "IS_MUNINRUNNING" "Munin is not installed properly (load PNG not found)"
+        fi
+    else
+        failed "IS_MUNINRUNNING" "Munin is not installed properly (main directories are missing)"
+    fi
+}
+# Check if files in /home/backup/ are up-to-date
+check_backupuptodate() {
+    backup_dir="/home/backup"
+    if [ -d "${backup_dir}" ]; then
+        if [ -n "$(ls -A ${backup_dir})" ]; then
+            # shellcheck disable=SC2231
+            for file in ${backup_dir}/*; do
+                limit=$(date +"%s" -d "now - 2 day")
+                updated_at=$(stat -c "%Y" "$file")
+
+                if [ -f "$file" ] && [ "$limit" -gt "$updated_at" ]; then
+                    failed "IS_BACKUPUPTODATE" "$file has not been backed up"
+                    test "${VERBOSE}" = 1 || break;
+                fi
+            done
+        else
+            failed "IS_BACKUPUPTODATE" "${backup_dir}/ is empty"
+        fi
+    else
+        failed "IS_BACKUPUPTODATE" "${backup_dir}/ is missing"
+    fi
+}
+check_etcgit() {
+    export GIT_DIR="/etc/.git" GIT_WORK_TREE="/etc"
+    git rev-parse --is-inside-work-tree > /dev/null 2>&1 \
+        || failed "IS_ETCGIT" "/etc is not a git repository"
+}
+# Check if /etc/.git/ has read/write permissions for root only.
+check_gitperms() {
+    GIT_DIR="/etc/.git"
+    if test -d $GIT_DIR; then
+        expected="700"
+        actual=$(stat -c "%a" $GIT_DIR)
+        [ "$expected" = "$actual" ] || failed "IS_GITPERMS" "$GIT_DIR must be $expected"
+    fi
+}
+# Check if no package has been upgraded since $limit.
+check_notupgraded() {
+    last_upgrade=0
+    upgraded=false
+    for log in /var/log/dpkg.log*; do
+        if zgrep -qsm1 upgrade "$log"; then
+            # There is at least one upgrade
+            upgraded=true
+            break
+        fi
+    done
+    if $upgraded; then
+        last_upgrade=$(date +%s -d "$(zgrep -h upgrade /var/log/dpkg.log* | sort -n | tail -1 | cut -f1 -d ' ')")
+    fi
+    if grep -qs '^mailto="listupgrade-todo@' /etc/evolinux/listupgrade.cnf \
+        || grep -qs -E '^[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[^\*]' /etc/cron.d/listupgrade; then
+        # Manual upgrade process
+        limit=$(date +%s -d "now - 180 days")
+    else
+        # Regular process
+        limit=$(date +%s -d "now - 90 days")
+    fi
+    install_date=0
+    if [ -d /var/log/installer ]; then
+        install_date=$(stat -c %Z /var/log/installer)
+    fi
+    # Check install_date if the system never received an upgrade
+    if [ "$last_upgrade" -eq 0 ]; then
+        [ "$install_date" -lt "$limit" ] && failed "IS_NOTUPGRADED" "The system has never been updated"
+    else
+        [ "$last_upgrade" -lt "$limit" ] && failed "IS_NOTUPGRADED" "The system hasn't been updated for too long"
+    fi
+}
+# Check if reserved blocks for root is at least 5% on every mounted partitions.
+check_tune2fs_m5() {
+    min=5
+    parts=$(grep -E "ext(3|4)" /proc/mounts | cut -d ' ' -f1 | tr -s '\n' ' ')
+    FINDMNT_BIN=$(command -v findmnt)
+    for part in $parts; do
+        blockCount=$(dumpe2fs -h "$part" 2>/dev/null | grep -e "Block count:" | grep -Eo "[0-9]+")
+        # If buggy partition, skip it.
+        if [ -z "$blockCount" ]; then
+            continue
+        fi
+        reservedBlockCount=$(dumpe2fs -h "$part" 2>/dev/null | grep -e "Reserved block count:" | grep -Eo "[0-9]+")
+        # Use awk to have a rounded percentage
+        # python is slow, bash is unable and bc rounds weirdly
+        percentage=$(awk "BEGIN { pc=100*${reservedBlockCount}/${blockCount}; i=int(pc); print (pc-i<0.5)?i:i+1 }")
+
+        if [ "$percentage" -lt "${min}" ]; then
+            if [ -x "${FINDMNT_BIN}" ]; then
+                mount=$(${FINDMNT_BIN} --noheadings --first-only --output TARGET "${part}")
+            else
+                mount="unknown mount point"
+            fi
+            failed "IS_TUNE2FS_M5" "Partition ${part} (${mount}) has less than ${min}% reserved blocks (${percentage}%)"
+        fi
+    done
+}
+check_evolinuxsudogroup() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if grep -q "^evolinux-sudo:" /etc/group; then
+            if [ -f /etc/sudoers.d/evolinux ]; then
+                grep -qE '^%evolinux-sudo +ALL ?= ?\(ALL:ALL\) ALL' /etc/sudoers.d/evolinux \
+                    || failed "IS_EVOLINUXSUDOGROUP" "missing evolinux-sudo directive in sudoers file"
+            fi
         fi
     fi
-
-    if [ "$IS_MYSQLMUNIN" = 1 ]; then
-        if is_debianversion stretch && is_installed mariadb-server; then
+}
+check_userinadmgroup() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        users=$(grep "^evolinux-sudo:" /etc/group | awk -F: '{print $4}' | tr ',' ' ')
+        for user in $users; do
+            if ! groups "$user" | grep -q adm; then
+                failed "IS_USERINADMGROUP" "User $user doesn't belong to \`adm' group"
+                test "${VERBOSE}" = 1 || break
+            fi
+        done
+    fi
+}
+check_apache2evolinuxconf() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed apache2; then
+            { test -L /etc/apache2/conf-enabled/z-evolinux-defaults.conf \
+                && test -L /etc/apache2/conf-enabled/zzz-evolinux-custom.conf \
+                && test -f /etc/apache2/ipaddr_whitelist.conf;
+            } || failed "IS_APACHE2EVOLINUXCONF" "missing custom evolinux apache config"
+        fi
+    fi
+}
+check_backportsconf() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        grep -qsE "^[^#].*backports" /etc/apt/sources.list \
+            && failed "IS_BACKPORTSCONF" "backports can't be in main sources list"
+        if grep -qsE "^[^#].*backports" /etc/apt/sources.list.d/*.list; then
+            grep -qsE "^[^#].*backports" /etc/apt/preferences.d/* \
+                || failed "IS_BACKPORTSCONF" "backports must have preferences"
+        fi
+    fi
+}
+check_bind9munin() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed bind9; then
+            { test -L /etc/munin/plugins/bind9 \
+                && test -e /etc/munin/plugin-conf.d/bind9;
+            } || failed "IS_BIND9MUNIN" "missing bind plugin for munin"
+        fi
+    fi
+}
+check_bind9logrotate() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed bind9; then
+            test -e /etc/logrotate.d/bind9 || failed "IS_BIND9LOGROTATE" "missing bind logrotate file"
+        fi
+    fi
+}
+check_broadcomfirmware() {
+    LSPCI_BIN=$(command -v lspci)
+    if [ -x "${LSPCI_BIN}" ]; then
+        if ${LSPCI_BIN} | grep -q 'NetXtreme II'; then
+            { is_installed firmware-bnx2 \
+                && grep -q "^deb http://mirror.evolix.org/debian.* non-free" /etc/apt/sources.list;
+            } || failed "IS_BROADCOMFIRMWARE" "missing non-free repository"
+        fi
+    else
+        failed "IS_BROADCOMFIRMWARE" "lspci not found in ${PATH}"
+    fi
+}
+check_hardwareraidtool() {
+    LSPCI_BIN=$(command -v lspci)
+    if [ -x "${LSPCI_BIN}" ]; then
+        if ${LSPCI_BIN} | grep -q 'MegaRAID'; then
+            # shellcheck disable=SC2015
+            is_installed megacli && { is_installed megaclisas-status || is_installed megaraidsas-status; } \
+                || failed "IS_HARDWARERAIDTOOL" "Mega tools not found"
+        fi
+        if ${LSPCI_BIN} | grep -q 'Hewlett-Packard Company Smart Array'; then
+            is_installed cciss-vol-status || failed "IS_HARDWARERAIDTOOL" "cciss-vol-status not installed"
+        fi
+    else
+        failed "IS_HARDWARERAIDTOOL" "lspci not found in ${PATH}"
+    fi
+}
+check_log2mailsystemdunit() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        systemctl -q is-active log2mail.service \
+            || failed "IS_LOG2MAILSYSTEMDUNIT" "log2mail unit not running"
+        test -f /etc/systemd/system/log2mail.service \
+            || failed "IS_LOG2MAILSYSTEMDUNIT" "missing log2mail unit file"
+        test -f /etc/init.d/log2mail \
+            && failed "IS_LOG2MAILSYSTEMDUNIT" "/etc/init.d/log2mail may be deleted (use systemd unit)"
+    fi
+}
+check_listupgrade() {
+    test -f /etc/cron.d/listupgrade \
+        || failed "IS_LISTUPGRADE" "missing listupgrade cron"
+    test -x /usr/share/scripts/listupgrade.sh \
+        || failed "IS_LISTUPGRADE" "missing listupgrade script or not executable"
+}
+check_mariadbevolinuxconf() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed mariadb-server; then
+            { test -f /etc/mysql/mariadb.conf.d/z-evolinux-defaults.cnf \
+                && test -f /etc/mysql/mariadb.conf.d/zzz-evolinux-custom.cnf;
+            } || failed "IS_MARIADBEVOLINUXCONF" "missing mariadb custom config"
+        fi
+    fi
+}
+check_sql_backup() {
+    if (is_installed "mysql-server" || is_installed "mariadb-server"); then
+        # You could change the default path in /etc/evocheck.cf
+        SQL_BACKUP_PATH=${SQL_BACKUP_PATH:-"/home/backup/mysql.bak.gz"}
+        for backup_path in ${SQL_BACKUP_PATH}; do
+            if [ ! -f "${backup_path}" ]; then
+                failed "IS_SQL_BACKUP" "MySQL dump is missing (${backup_path})"
+                test "${VERBOSE}" = 1 || break
+            fi
+        done
+    fi
+}
+check_postgres_backup() {
+    if is_installed "postgresql-9*" || is_installed "postgresql-1*"; then
+        # If you use something like barman, you should disable this check
+        # You could change the default path in /etc/evocheck.cf
+        POSTGRES_BACKUP_PATH=${POSTGRES_BACKUP_PATH:-"/home/backup/pg.dump.bak*"}
+        for backup_path in ${POSTGRES_BACKUP_PATH}; do
+            if [ ! -f "${backup_path}" ]; then
+                failed "IS_POSTGRES_BACKUP" "PostgreSQL dump is missing (${backup_path})"
+                test "${VERBOSE}" = 1 || break
+            fi
+        done
+    fi
+}
+check_mongo_backup() {
+    if is_installed "mongodb-org-server"; then
+        # You could change the default path in /etc/evocheck.cf
+        MONGO_BACKUP_PATH=${MONGO_BACKUP_PATH:-"/home/backup/mongodump"}
+        if [ -d "$MONGO_BACKUP_PATH" ]; then
+            for file in "${MONGO_BACKUP_PATH}"/*/*.{json,bson}.*; do
+                # Skip indexes file.
+                if ! [[ "$file" =~ indexes ]]; then
+                    limit=$(date +"%s" -d "now - 2 day")
+                    updated_at=$(stat -c "%Y" "$file")
+                    if [ -f "$file" ] && [ "$limit" -gt "$updated_at"  ]; then
+                        failed "IS_MONGO_BACKUP" "MongoDB hasn't been dumped for more than 2 days"
+                        break
+                    fi
+                fi
+            done
+        else
+            failed "IS_MONGO_BACKUP" "MongoDB dump directory is missing (${MONGO_BACKUP_PATH})"
+        fi
+    fi
+}
+check_ldap_backup() {
+    if is_installed slapd; then
+        # You could change the default path in /etc/evocheck.cf
+        LDAP_BACKUP_PATH=${LDAP_BACKUP_PATH:-"/home/backup/ldap.bak"}
+        test -f "$LDAP_BACKUP_PATH" || failed "IS_LDAP_BACKUP" "LDAP dump is missing (${LDAP_BACKUP_PATH})"
+    fi
+}
+check_redis_backup() {
+    if is_installed redis-server; then
+        # You could change the default path in /etc/evocheck.cf
+        REDIS_BACKUP_PATH=${REDIS_BACKUP_PATH:-"/home/backup/dump.rdb"}
+        test -f "$REDIS_BACKUP_PATH" || failed "IS_REDIS_BACKUP" "Redis dump is missing (${REDIS_BACKUP_PATH})"
+    fi
+}
+check_elastic_backup() {
+    if is_installed elasticsearch; then
+        # You could change the default path in /etc/evocheck.cf
+        ELASTIC_BACKUP_PATH=${ELASTIC_BACKUP_PATH:-"/home/backup-elasticsearch"}
+        test -d "$ELASTIC_BACKUP_PATH" || failed "IS_ELASTIC_BACKUP" "Elastic snapshot is missing (${ELASTIC_BACKUP_PATH})"
+    fi
+}
+check_mariadbsystemdunit() {
+    # TODO: check if it is still needed for bullseye
+    if is_debian_stretch || is_debian_buster; then
+        if is_installed mariadb-server; then
+            if systemctl -q is-active mariadb.service; then
+                test -f /etc/systemd/system/mariadb.service.d/evolinux.conf \
+                    || failed "IS_MARIADBSYSTEMDUNIT" "missing systemd override for mariadb unit"
+            fi
+        fi
+    fi
+}
+check_mysqlmunin() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed mariadb-server; then
             for file in mysql_bytes mysql_queries mysql_slowqueries \
-            mysql_threads mysql_connections mysql_files_tables \
-            mysql_innodb_bpool mysql_innodb_bpool_act mysql_innodb_io \
-            mysql_innodb_log mysql_innodb_rows mysql_innodb_semaphores \
-            mysql_myisam_indexes mysql_qcache mysql_qcache_mem \
-            mysql_sorts mysql_tmp_tables; do
+                mysql_threads mysql_connections mysql_files_tables \
+                mysql_innodb_bpool mysql_innodb_bpool_act mysql_innodb_io \
+                mysql_innodb_log mysql_innodb_rows mysql_innodb_semaphores \
+                mysql_myisam_indexes mysql_qcache mysql_qcache_mem \
+                mysql_sorts mysql_tmp_tables; do
 
                 if [[ ! -L /etc/munin/plugins/$file ]]; then
-                    echo 'IS_MYSQLMUNIN FAILED!'
-                    break
+                    failed "IS_MYSQLMUNIN" "missing munin plugin '$file'"
+                    test "${VERBOSE}" = 1 || break
                 fi
             done
+            munin-run mysql_commands 2> /dev/null > /dev/null
+            test $? -eq 0 || failed "IS_MYSQLMUNIN" "Munin plugin mysql_commands returned an error"
         fi
     fi
-
-    if [ "$IS_MYSQLNRPE" = 1 ]; then
-        if is_debianversion stretch && is_installed mariadb-server; then
-            (test -f ~nagios/.my.cnf \
-                && [ $(stat -c %U ~nagios/.my.cnf) = "nagios" ] \
-                && [ $(stat -c %a ~nagios/.my.cnf) = "600" ] \
-                && grep -q -F "command[check_mysql]=/usr/lib/nagios/plugins/check_mysql -H localhost  -f ~nagios/.my.cnf") || echo 'IS_MYSQLNRPE FAILED!'
+}
+check_mysqlnrpe() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed mariadb-server; then
+            nagios_file=~nagios/.my.cnf
+            if ! test -f ${nagios_file}; then
+                failed "IS_MYSQLNRPE" "${nagios_file} is missing"
+            elif [ "$(stat -c %U ${nagios_file})" != "nagios" ] \
+                || [ "$(stat -c %a ${nagios_file})" != "600" ]; then
+                failed "IS_MYSQLNRPE" "${nagios_file} has wrong permissions"
+            else
+                grep -q -F "command[check_mysql]=/usr/lib/nagios/plugins/check_mysql" /etc/nagios/nrpe.d/evolix.cfg \
+                || failed "IS_MYSQLNRPE" "check_mysql is missing"
+            fi
         fi
     fi
-
-    if [ "$IS_PHPEVOLINUXCONF" = 1 ]; then
-        if is_debianversion stretch && is_installed php; then
-            (test -f /etc/php/7.0/cli/conf.d/z-evolinux-defaults.ini \
-                && test -f /etc/php/7.0/cli/conf.d/zzz-evolinux-custom.ini) || echo 'IS_PHPEVOLINUXCONF FAILED!'
+}
+check_phpevolinuxconf() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        is_debian_stretch  && phpVersion="7.0"
+        is_debian_buster   && phpVersion="7.3"
+        is_debian_bullseye && phpVersion="7.4"
+        if is_installed php; then
+            { test -f /etc/php/${phpVersion}/cli/conf.d/z-evolinux-defaults.ini \
+                && test -f /etc/php/${phpVersion}/cli/conf.d/zzz-evolinux-custom.ini
+            } || failed "IS_PHPEVOLINUXCONF" "missing php evolinux config"
         fi
     fi
-
-    if [ "$IS_SQUIDLOGROTATE" = 1 ]; then
-        if is_debianversion stretch && is_installed squid; then
-            grep -q monthly /etc/logrotate.d/squid || echo 'IS_SQUIDLOGROTATE FAILED!'
+}
+check_squidlogrotate() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed squid; then
+            grep -q -e monthly -e daily /etc/logrotate.d/squid \
+                || failed "IS_SQUIDLOGROTATE" "missing squid logrotate file"
         fi
     fi
-
-    if [ "$IS_SQUIDEVOLINUXCONF" = 1 ]; then
-        if is_debianversion stretch && is_installed squid; then
-            (grep -q "^CONFIG=/etc/squid/evolinux-defaults.conf$" /etc/default/squid \
+}
+check_squidevolinuxconf() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if is_installed squid; then
+            { grep -qs "^CONFIG=/etc/squid/evolinux-defaults.conf$" /etc/default/squid \
                 && test -f /etc/squid/evolinux-defaults.conf \
                 && test -f /etc/squid/evolinux-whitelist-defaults.conf \
                 && test -f /etc/squid/evolinux-whitelist-custom.conf \
                 && test -f /etc/squid/evolinux-acl.conf \
                 && test -f /etc/squid/evolinux-httpaccess.conf \
-                && test -f /etc/squid/evolinux-custom.conf) || echo 'IS_SQUIDEVOLINUXCONF FAILED!'
+                && test -f /etc/squid/evolinux-custom.conf;
+            } || failed "IS_SQUIDEVOLINUXCONF" "missing squid evolinux config"
         fi
     fi
+}
+check_duplicate_fs_label() {
+    # Do it only if thereis blkid binary
+    BLKID_BIN=$(command -v blkid)
+    if [ -n "$BLKID_BIN" ]; then
+        tmpFile=$(mktemp --tmpdir="${TMPDIR:-/tmp}" "evocheck.duplicate_fs_label.XXXXX")
+        files_to_cleanup="${files_to_cleanup} ${tmpFile}"
 
-    if [ "$IS_DUPLICATE_FS_LABEL" = 1 ]; then
-        # Do it only if thereis blkid binary
-        if [ -x "$(which blkid)" ]; then
-            tmpFile=$(mktemp -p /tmp)
-            for part in $(blkid | grep -v raid_member | grep -Eo 'LABEL=".*"' | cut -d'"' -f2); do
-                echo "$part" >> "$tmpFile"
+        parts=$($BLKID_BIN -c /dev/null | grep -ve raid_member -e EFI_SYSPART | grep -Eo ' LABEL=".*"' | cut -d'"' -f2)
+        for part in $parts; do
+            echo "$part" >> "$tmpFile"
+        done
+        tmpOutput=$(sort < "$tmpFile" | uniq -d)
+        # If there is no duplicate, uniq will have no output
+        # So, if $tmpOutput is not null, there is a duplicate
+        if [ -n "$tmpOutput" ]; then
+            # shellcheck disable=SC2086
+            labels=$(echo -n $tmpOutput | tr '\n' ' ')
+            failed "IS_DUPLICATE_FS_LABEL" "Duplicate labels: $labels"
+        fi
+    else
+        failed "IS_DUPLICATE_FS_LABEL" "blkid not found in ${PATH}"
+    fi
+}
+check_evolix_user() {
+    grep -q -E "^evolix:" /etc/passwd \
+        && failed "IS_EVOLIX_USER" "evolix user should be deleted, used only for install"
+}
+check_evoacme_cron() {
+    if [ -f "/usr/local/sbin/evoacme" ]; then
+        # Old cron file, should be deleted
+        test -f /etc/cron.daily/certbot && failed "IS_EVOACME_CRON" "certbot cron is incompatible with evoacme"
+        # evoacme cron file should be present
+        test -f /etc/cron.daily/evoacme || failed "IS_EVOACME_CRON" "evoacme cron is missing"
+    fi
+}
+check_evoacme_livelinks() {
+    EVOACME_BIN=$(command -v evoacme)
+    if [ -x "$EVOACME_BIN" ]; then
+        # Sometimes evoacme is installed but no certificates has been generated
+        numberOfLinks=$(find /etc/letsencrypt/ -type l | wc -l)
+        if [ "$numberOfLinks" -gt 0 ]; then
+            for live in /etc/letsencrypt/*/live; do
+                actualLink=$(readlink -f "$live")
+                actualVersion=$(basename "$actualLink")
+
+                certDir=$(dirname "$live")
+                certName=$(basename "$certDir")
+                # shellcheck disable=SC2012
+                lastCertDir=$(ls -ds "${certDir}"/[0-9]* | tail -1)
+                lastVersion=$(basename "$lastCertDir")
+
+                if [[ "$lastVersion" != "$actualVersion" ]]; then
+                    failed "IS_EVOACME_LIVELINKS" "Certificate \`$certName' hasn't been updated"
+                    test "${VERBOSE}" = 1 || break
+                fi
             done
-            tmpOutput=$(sort < "$tmpFile" | uniq -d)
-            # If there is no duplicate, uniq will have no output
-            # So, if $tmpOutput is not null, there is a duplicate
-            if [ -n "$tmpOutput" ]; then
-                echo 'IS_DUPLICATE_FS_LABEL FAILED!'
-                # For debug, you may echo the contents of $tmpOutput
-                # echo $tmpOutput
-            fi
-            rm $tmpFile
         fi
     fi
-
-    if [ "$IS_EVOLIX_USER" = 1 ]; then
-        getent passwd evolix >/dev/null && echo 'IS_EVOLIX_USER FAILED!'
+}
+check_apache_confenabled() {
+    # Starting from Jessie and Apache 2.4, /etc/apache2/conf.d/
+    # must be replaced by conf-available/ and config files symlinked
+    # to conf-enabled/
+    if is_debian_jessie || is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        if [ -f /etc/apache2/apache2.conf ]; then
+            test -d /etc/apache2/conf.d/ \
+                && failed "IS_APACHE_CONFENABLED" "apache's conf.d directory must not exists"
+            grep -q 'Include conf.d' /etc/apache2/apache2.conf \
+                && failed "IS_APACHE_CONFENABLED" "apache2.conf must not Include conf.d"
+        fi
     fi
-fi
-
-
-if [ `uname -s` == "OpenBSD" ]; then
-
-    if [ "$IS_SOFTDEP" = 1 ]; then
-        grep -q "softdep" /etc/fstab || echo 'IS_SOFTDEP FAILED!'
+}
+check_meltdown_spectre() {
+    # For Stretch, detection is easy as the kernel use
+    # /sys/devices/system/cpu/vulnerabilities/
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        for vuln in meltdown spectre_v1 spectre_v2; do
+            test -f "/sys/devices/system/cpu/vulnerabilities/$vuln" \
+                || failed "IS_MELTDOWN_SPECTRE" "vulnerable to $vuln"
+            test "${VERBOSE}" = 1 || break
+        done
+    # For Jessie this is quite complicated to verify and we need to use kernel config file
+    elif is_debian_jessie; then
+        if grep -q "BOOT_IMAGE=" /proc/cmdline; then
+            kernelPath=$(grep -Eo 'BOOT_IMAGE=[^ ]+' /proc/cmdline | cut -d= -f2)
+            kernelVer=${kernelPath##*/vmlinuz-}
+            kernelConfig="config-${kernelVer}"
+            # Sometimes autodetection of kernel config file fail, so we test if the file really exists.
+            if [ -f "/boot/${kernelConfig}" ]; then
+                grep -Eq '^CONFIG_PAGE_TABLE_ISOLATION=y' "/boot/$kernelConfig" \
+                    || failed "IS_MELTDOWN_SPECTRE" \
+                    "PAGE_TABLE_ISOLATION must be enabled in kernel, outdated kernel?"
+                grep -Eq '^CONFIG_RETPOLINE=y' "/boot/$kernelConfig" \
+                    || failed "IS_MELTDOWN_SPECTRE" \
+                    "RETPOLINE must be enabled in kernel, outdated kernel?"
+            fi
+        fi
     fi
-
-    if [ "$IS_WHEEL" = 1 ]; then
-        grep -qE "^%wheel.*$" /etc/sudoers || echo 'IS_WHEEL FAILED!'
+}
+check_old_home_dir() {
+    homeDir=${homeDir:-/home}
+    for dir in "$homeDir"/*; do
+        statResult=$(stat -c "%n has owner %u resolved as %U" "$dir" \
+            | grep -Eve '.bak' -e '\.[0-9]{2}-[0-9]{2}-[0-9]{4}' \
+            | grep "UNKNOWN")
+        # There is at least one dir matching
+        if [[ -n "$statResult" ]]; then
+            failed "IS_OLD_HOME_DIR" "$statResult"
+            test "${VERBOSE}" = 1 || break
+        fi
+    done
+}
+check_tmp_1777() {
+    actual=$(stat --format "%a" /tmp)
+    expected="1777"
+    test "$expected" = "$actual" || failed "IS_TMP_1777" "/tmp must be $expected"
+}
+check_root_0700() {
+    actual=$(stat --format "%a" /root)
+    expected="700"
+    test "$expected" = "$actual" || failed "IS_ROOT_0700" "/root must be $expected"
+}
+check_usrsharescripts() {
+    actual=$(stat --format "%a" /usr/share/scripts)
+    expected="700"
+    test "$expected" = "$actual" || failed "IS_USRSHARESCRIPTS" "/usr/share/scripts must be $expected"
+}
+check_sshpermitrootno() {
+    sshd_args="-C addr=,user=,host=,laddr=,lport=0"
+    if is_debian_jessie || is_debian_stretch; then
+	# Noop, we'll use the default $sshd_args
+        :
+    elif is_debian_buster; then
+	sshd_args="${sshd_args},rdomain="
+    else
+	# NOTE: From Debian Bullseye 11 onward, with OpenSSH 8.1, the argument
+        # -T doesn't require the additional -C.
+	sshd_args=
     fi
-
-    if [ "$IS_SUDOADMIN" = 1 ]; then
-    grep -qE "^User_Alias ADMIN=.*$" /etc/sudoers || echo 'IS_SUDOADMIN FAILED!'
+    # XXX: We want parameter expension here
+    if ! (sshd -T $sshd_args | grep -q 'permitrootlogin no'); then
+       failed "IS_SSHPERMITROOTNO" "PermitRoot should be set to no"
     fi
-
-    if [ "$IS_PKGMIRROR" = 1 ]; then
-        grep -qE "^export PKG_PATH=http://ftp\.fr\.openbsd\.org/pub/OpenBSD/[0-9.]+/packages/[a-z0-9]+/$" /root/.profile || echo 'IS_PKGMIRROR FAILED!'
-    fi
-
-    if [ "$IS_HISTORY" = 1 ]; then
-        f=/root/.profile
-        grep -q "^HISTFILE=\$HOME/.histfile" $f \
-        && grep -q "^export HISTFILE" $f \
-        && grep -q "^HISTSIZE=1000" $f \
-        && grep -q "^export HISTSIZE" $f \
-        || echo 'IS_HISTORY FAILED!'
-    fi
-
-    if [ "$IS_VIM" = 1 ]; then
-        which vim 2>1 >> /dev/null || echo 'IS_VIM FAILED!'
-    fi
-
-    if [ "$IS_TTYC0SECURE" = 1 ]; then
-        grep -Eqv "^ttyC0.*secure$" /etc/ttys || echo 'IS_TTYC0SECURE FAILED!'
-    fi
-
-    if [ "$IS_CUSTOMSYSLOG" = 1 ]; then
-        grep -q Evolix /etc/newsyslog.conf || echo 'IS_CUSTOMSYSLOG FAILED!'
-    fi
-
-    if [ "$IS_NOINETD" = 1 ]; then
-        grep -q inetd=NO /etc/rc.conf.local 2>/dev/null || echo 'IS_NOINETD FAILED!'
-    fi
-
-    if [ "$IS_SUDOMAINT" = 1 ]; then
-        f=/etc/sudoers
-        grep -q "Cmnd_Alias MAINT = /usr/share/scripts/evomaintenance.sh" $f \
-        && grep -q "ADMIN ALL=NOPASSWD: MAINT" $f \
-        || echo 'IS_SUDOMAINT FAILED!'
-    fi
-
-    if [ "$IS_POSTGRESQL" = 1 ]; then
-        pkg info | grep -q postgresql-client || echo 'IS_POSTGRESQL FAILED!'
-    fi
-
-    if [ "$IS_NRPE" = 1 ]; then
-        ( pkg info | grep -qE "nagios-plugins-[0-9.]" \
-        && pkg info | grep -q nagios-plugins-ntp \
-        && pkg info | grep -q nrpe ) || echo 'IS_NRPE FAILED!'
-    fi
-
-# if [ "$IS_NRPEDISKS" = 1 ]; then
-#     NRPEDISKS=$(grep command.check_disk /etc/nrpe.cfg 2>/dev/null | grep ^command.check_disk[0-9] | sed -e "s/^command.check_disk\([0-9]\+\).*/\1/" | sort -n | tail -1)
-#     DFDISKS=$(df -Pl | grep -E -v "(^Filesystem|/lib/init/rw|/dev/shm|udev|rpc_pipefs)" | wc -l)
-#     [ "$NRPEDISKS" = "$DFDISKS" ] || echo 'IS_NRPEDISKS FAILED!'
-# fi
-
-# Verification du check_mailq dans nrpe.cfg (celui-ci doit avoir l'option "-M postfix" si le MTA est Postfix)
-#
-# if [ "$IS_NRPEPOSTFIX" = 1 ]; then
-#     pkg info | grep -q postfix && ( grep -q "^command.*check_mailq -M postfix" /etc/nrpe.cfg 2>/dev/null || echo 'IS_NRPEPOSTFIX FAILED!' )
-# fi
-
-    if [ "$IS_NRPEDAEMON" = 1 ]; then
-        grep -q "echo -n ' nrpe';        /usr/local/sbin/nrpe -d" /etc/rc.local || echo 'IS_NREPEDAEMON FAILED!'
-    fi
-
-    if [ "$IS_ALERTBOOT" = 1 ]; then
-        grep -qE "^date \| mail -sboot/reboot .*evolix.fr$" /etc/rc.local || echo 'IS_ALERTBOOT FAILED!'
-    fi
-
-    if [ "$IS_RSYNC" = 1 ]; then
-        pkg info | grep -q rsync || echo 'IS_RSYNC FAILED!'
-    fi
-
-    if [ "$IS_CRONPATH" = 1 ]; then
-        grep -q "PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin" /var/cron/tabs/root || echo 'IS_CRONPATH FAILED!'
-    fi
-
-    #TODO
-    # - Check en profondeur de postfix
-    # - NRPEDISK et NRPEPOSTFIX
-fi
-
-if [ "$IS_TMP_1777" = 1 ]; then
-    ls -ld /tmp | grep -q drwxrwxrwt || echo 'IS_TMP_1777 FAILED!'
-fi
-
-if [ "$IS_ROOT_0700" = 1 ]; then
-    ls -ld /root | grep -q drwx------ || echo 'IS_ROOT_0700 FAILED!'
-fi
-
-if [ "$IS_USRSHARESCRIPTS" = 1 ]; then
-    ls -ld /usr/share/scripts | grep -q drwx------ || echo 'IS_USRSHARESCRIPTS FAILED!'
-fi
-
-if [ "$IS_SSHPERMITROOTNO" = 1 ]; then
-    is_debianversion stretch || ( grep -E -qi "PermitRoot.*no" /etc/ssh/sshd_config || echo 'IS_SSHPERMITROOTNO FAILED!' )
-    is_debianversion stretch && grep -q ^PermitRoot /etc/ssh/sshd_config && ( grep -E -qi "PermitRoot.*no" /etc/ssh/sshd_config || echo 'IS_SSHPERMITROOTNO FAILED!' )
-fi
-
-if [ "$IS_EVOMAINTENANCEUSERS" = 1 ]; then
-    if ! is_debianversion stretch; then
+}
+check_evomaintenanceusers() {
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        users=$(getent group evolinux-sudo | cut -d':' -f4 | tr ',' ' ')
+    else
         if [ -f /etc/sudoers.d/evolinux ]; then
             sudoers="/etc/sudoers.d/evolinux"
         else
             sudoers="/etc/sudoers"
         fi
-        for i in $( (grep "^User_Alias *ADMIN" $sudoers | cut -d= -f2 | tr -d " "; grep ^sudo /etc/group |cut -d: -f 4) | tr "," "\n" |sort -u); do
-            grep -q "^trap.*sudo.*evomaintenance.sh" /home/$i/.*profile || echo 'IS_EVOMAINTENANCEUSERS FAILED!'
-        done
-    else
-        for i in $(getent group evolinux-sudo | cut -d':' -f4 | tr ',' ' '); do
-            grep -q "^trap.*sudo.*evomaintenance.sh" /home/$i/.*profile || echo 'IS_EVOMAINTENANCEUSERS FAILED!'
-        done
+        # combine users from User_Alias and sudo group
+        users=$({ grep "^User_Alias *ADMIN" $sudoers | cut -d= -f2 | tr -d " "; grep "^sudo" /etc/group | cut -d: -f 4; } | tr "," "\n" | sort -u)
     fi
-fi
-
-# Verification de la configuration d'evomaintenance
-if [ "$IS_EVOMAINTENANCECONF" = 1 ]; then
-    f=/etc/evomaintenance.cf
-    ( test -e $f \
-    && test $(stat -c "%a" $f) = "600" \
-    && grep "^export PGPASSWORD" $f |grep -qv "your-passwd" \
-    && grep "^PGDB" $f |grep -qv "your-db" \
-    && grep "^PGTABLE" $f |grep -qv "your-table" \
-    && grep "^PGHOST" $f |grep -qv "your-pg-host" \
-    && grep "^FROM" $f |grep -qv "jdoe@example.com" \
-    && grep "^FULLFROM" $f |grep -qv "John Doe <jdoe@example.com>" \
-    && grep "^URGENCYFROM" $f |grep -qv "mama.doe@example.com" \
-    && grep "^URGENCYTEL" $f |grep -qv "06.00.00.00.00" \
-    && grep "^REALM" $f |grep -qv "example.com" ) || echo 'IS_EVOMAINTENANCECONF FAILED!'
-fi
-
-if [ "$IS_PRIVKEYWOLRDREADABLE" = 1 ]; then
-    for f in /etc/ssl/private/*; do
-        perms=$(stat -c "%a" $f)
-        if [ ${perms: -1} != "0" ]; then
-            echo 'IS_PRIVKEYWOLRDREADABLE FAILED!'
+    for user in $users; do
+        user_home=$(getent passwd "$user" | cut -d: -f6)
+        if [ -n "$user_home" ] && [ -d "$user_home" ]; then
+            if ! grep -qs "^trap.*sudo.*evomaintenance.sh" "${user_home}"/.*profile; then
+                failed "IS_EVOMAINTENANCEUSERS" "${user} doesn't have an evomaintenance trap"
+                test "${VERBOSE}" = 1 || break
+            fi
         fi
     done
-fi
+}
+check_evomaintenanceconf() {
+    f=/etc/evomaintenance.cf
+    if [ -e "$f" ]; then
+        perms=$(stat -c "%a" $f)
+        test "$perms" = "600" || failed "IS_EVOMAINTENANCECONF" "Wrong permissions on \`$f' ($perms instead of 600)"
+
+        { grep "^export PGPASSWORD" $f | grep -qv "your-passwd" \
+            && grep "^PGDB" $f | grep -qv "your-db" \
+            && grep "^PGTABLE" $f | grep -qv "your-table" \
+            && grep "^PGHOST" $f | grep -qv "your-pg-host" \
+            && grep "^FROM" $f | grep -qv "jdoe@example.com" \
+            && grep "^FULLFROM" $f | grep -qv "John Doe <jdoe@example.com>" \
+            && grep "^URGENCYFROM" $f | grep -qv "mama.doe@example.com" \
+            && grep "^URGENCYTEL" $f | grep -qv "06.00.00.00.00" \
+            && grep "^REALM" $f | grep -qv "example.com"
+        } || failed "IS_EVOMAINTENANCECONF" "evomaintenance is not correctly configured"
+    else
+        failed "IS_EVOMAINTENANCECONF" "Configuration file \`$f' is missing"
+    fi
+}
+check_privatekeyworldreadable() {
+    # a simple globbing fails if directory is empty
+    if [ -n "$(ls -A /etc/ssl/private/)" ]; then
+        for f in /etc/ssl/private/*; do
+            perms=$(stat -L -c "%a" "$f")
+            if [ "${perms: -1}" != 0 ]; then
+                failed "IS_PRIVKEYWOLRDREADABLE" "$f is world-readable"
+                test "${VERBOSE}" = 1 || break
+            fi
+        done
+    fi
+}
+check_evobackup_incs() {
+    if is_installed bkctld; then
+        bkctld_cron_file=${bkctld_cron_file:-/etc/cron.d/bkctld}
+        if [ -f "${bkctld_cron_file}" ]; then
+            root_crontab=$(grep -v "^#" "${bkctld_cron_file}")
+            echo "${root_crontab}" | grep -q "bkctld inc" || failed "IS_EVOBACKUP_INCS" "\`bkctld inc' is missing in ${bkctld_cron_file}"
+            echo "${root_crontab}" | grep -qE "(check-incs.sh|bkctld check-incs)" || failed "IS_EVOBACKUP_INCS" "\`check-incs.sh' is missing in ${bkctld_cron_file}"
+        else
+            failed "IS_EVOBACKUP_INCS" "Crontab \`${bkctld_cron_file}' is missing"
+        fi
+    fi
+}
+
+check_osprober() {
+    if is_installed os-prober qemu-kvm; then
+        failed "IS_OSPROBER" \
+            "Removal of os-prober package is recommended as it can cause serious issue on KVM server"
+    fi
+}
+
+check_jessie_backports() {
+    if is_debian_jessie; then
+        jessieBackports=$(grep -hs "jessie-backports" /etc/apt/sources.list /etc/apt/sources.list.d/*)
+        if test -n "$jessieBackports"; then
+            if ! grep -q "archive.debian.org" <<< "$jessieBackports"; then
+                failed "IS_JESSIE_BACKPORTS" "You must use deb http://archive.debian.org/debian/ jessie-backports main"
+            fi
+        fi
+    fi
+}
+
+check_apt_valid_until() {
+    aptvalidFile="/etc/apt/apt.conf.d/99no-check-valid-until"
+    aptvalidText="Acquire::Check-Valid-Until no;"
+    if grep -qs "archive.debian.org" /etc/apt/sources.list /etc/apt/sources.list.d/*; then
+        if ! grep -qs "$aptvalidText" /etc/apt/apt.conf.d/*; then
+            failed "IS_APT_VALID_UNTIL" \
+                "As you use archive.mirror.org you need ${aptvalidFile}: ${aptvalidText}"
+        fi
+    fi
+}
+
+check_chrooted_binary_uptodate() {
+    # list of processes to check
+    process_list="sshd"
+    for process_name in ${process_list}; do
+        # what is the binary path?
+        original_bin=$(command -v "${process_name}")
+        for pid in $(pgrep ${process_name}); do
+            process_bin=$(realpath "/proc/${pid}/exe")
+            # Is the process chrooted?
+            real_root=$(realpath "/proc/${pid}/root")
+            if [ "${real_root}" != "/" ]; then
+                chrooted_md5=$(md5sum "${process_bin}" | cut -f 1 -d ' ')
+                original_md5=$(md5sum "${original_bin}" | cut -f 1 -d ' ')
+                # compare md5 checksums
+                if [ "$original_md5" != "$chrooted_md5" ]; then
+                    failed "IS_CHROOTED_BINARY_UPTODATE" "${process_bin} (${pid}) is different than ${original_bin}."
+                    test "${VERBOSE}" = 1 || break
+                fi
+            fi
+        done
+    done
+}
+check_nginx_letsencrypt_uptodate() {
+    if [ -d /etc/nginx ]; then
+        snippets=$(find /etc/nginx -type f -name "letsencrypt.conf")
+        if [ -n "${snippets}" ]; then
+            while read -r snippet; do
+                if is_debian_jessie; then
+                    if ! grep -qE "^\s*alias\s+/.+/\.well-known/acme-challenge" "${snippet}"; then
+                        failed "IS_NGINX_LETSENCRYPT_UPTODATE" "Nginx snippet ${snippet} is not compatible with Nginx on Debian 8."
+                    fi
+                else
+                    if grep -qE "^\s*alias\s+/.+/\.well-known/acme-challenge" "${snippet}"; then
+                        failed "IS_NGINX_LETSENCRYPT_UPTODATE" "Nginx snippet ${snippet} is not compatible with Nginx on Debian 9+."
+                    fi
+                fi
+            done <<< "${snippets}"
+        fi
+    fi
+}
+
+check_lxc_container_resolv_conf() {
+    if is_installed lxc; then
+        container_list=$(lxc-ls)
+        current_resolvers=$(grep nameserver /etc/resolv.conf | sed 's/nameserver//g' )
+
+       for container in $container_list; do
+            if [ -f "/var/lib/lxc/${container}/rootfs/etc/resolv.conf" ]; then
+
+                while read -r resolver; do
+                    if ! grep -qE "^nameserver\s+${resolver}" "/var/lib/lxc/${container}/rootfs/etc/resolv.conf"; then
+                        failed "IS_LXC_CONTAINER_RESOLV_CONF" "resolv.conf miss-match beween host and container : missing nameserver ${resolver} in container ${container} resolv.conf"
+                    fi
+                done <<< "${current_resolvers}"
+
+            else
+                failed "IS_LXC_CONTAINER_RESOLV_CONF" "resolv.conf missing in container ${container}"
+            fi
+        done 
+    fi
+}
+download_versions() {
+    local file
+    file=${1:-}
+
+    ## The file is supposed to list programs : each on a line, then its latest version number
+    ## Examples:
+    # evoacme 21.06
+    # evomaintenance 0.6.4
+
+    if is_debian; then
+        versions_url="https://upgrades.evolix.org/versions-${DEBIAN_RELEASE}"
+    elif is_openbsd; then
+        versions_url="https://upgrades.evolix.org/versions-${OPENBSD_RELEASE}"
+    else
+        failed "IS_CHECK_VERSIONS" "error determining os release"
+    fi
+
+    # fetch timeout, in seconds
+    timeout=10
+
+    if command -v curl > /dev/null; then
+        curl --max-time ${timeout} --fail --silent --output "${versions_file}" "${versions_url}"
+    elif command -v wget > /dev/null; then
+        wget --timeout=${timeout} --quiet "${versions_url}" -O "${versions_file}"
+    elif command -v GET; then
+        GET -t ${timeout}s "${versions_url}" > "${versions_file}"
+    else
+        failed "IS_CHECK_VERSIONS" "failed to find curl, wget or GET"
+    fi
+    test "$?" -eq 0 || failed "IS_CHECK_VERSIONS" "failed to download ${versions_url} to ${versions_file}"
+}
+get_command() {
+    local program
+    program=${1:-}
+
+    case "${program}" in
+        ## Special cases where the program name is different than the command name
+        evocheck) echo "${0}" ;;
+        evomaintenance) command -v "evomaintenance.sh" ;;
+        listupgrade) command -v "evolistupgrade.sh" ;;
+        old-kernel-autoremoval) command -v "old-kernel-autoremoval.sh" ;;
+        mysql-queries-killer) command -v "mysql-queries-killer.sh" ;;
+        minifirewall) echo "/etc/init.d/minifirewall" ;;
+
+        ## General case, where the program name is the same as the command name
+        *) command -v "${program}" ;;
+    esac
+}
+get_version() {
+    local program
+    local command
+    program=${1:-}
+    command=${2:-}
+
+    case "${program}" in
+        ## Special case if `command --version => 'command` is not the standard way to get the version
+        # my_command)
+        #    /path/to/my_command --get-version 
+        #    ;;
+
+        add-vm)
+            grep '^VERSION=' "${command}" | head -1 | cut -d '=' -f 2
+            ;;
+        minifirewall)
+            ${command} version | head -1 | cut -d ' ' -f 3
+            ;;
+        ## Let's try the --version flag before falling back to grep for the constant
+        kvmstats)
+            if ${command} --version > /dev/null 2> /dev/null; then
+                 ${command} --version 2> /dev/null | head -1 | cut -d ' ' -f 3
+            else
+                grep '^VERSION=' "${command}" | head -1 | cut -d '=' -f 2
+            fi
+            ;;
+
+        ## General case to get the version
+        *) ${command} --version 2> /dev/null | head -1 | cut -d ' ' -f 3 ;;
+    esac
+}
+check_version() {
+    local program
+    local expected_version
+    program=${1:-}
+    expected_version=${2:-}
+
+    command=$(get_command "${program}")
+    if [ -n "${command}" ]; then
+        # shellcheck disable=SC2086
+        actual_version=$(get_version "${program}" "${command}")
+        # printf "program:%s expected:%s actual:%s\n" "${program}" "${expected_version}" "${actual_version}"
+        if [ -z "${actual_version}" ]; then
+            failed "IS_CHECK_VERSIONS" "failed to lookup actual version of ${program}"
+        elif dpkg --compare-versions "${actual_version}" lt "${expected_version}"; then
+            failed "IS_CHECK_VERSIONS" "${program} version ${actual_version} is older than expected version ${expected_version}"
+        elif dpkg --compare-versions "${actual_version}" gt "${expected_version}"; then
+            failed "IS_CHECK_VERSIONS" "${program} version ${actual_version} is newer than expected version ${expected_version}, you should update your index."
+        else
+            : # Version check OK
+        fi
+    fi
+}
+add_to_path() {
+    local new_path
+    new_path=${1:-}
+
+    echo "$PATH" | grep -qF "${new_path}" || export PATH="${PATH}:${new_path}"
+}
+check_versions() {
+    versions_file=$(mktemp --tmpdir="${TMPDIR:-/tmp}" "evocheck.versions.XXXXX")
+    files_to_cleanup="${files_to_cleanup} ${versions_file}"
+
+    download_versions "${versions_file}"
+    add_to_path "/usr/share/scripts"
+
+    grep -v '^ *#' < "${versions_file}" | while IFS= read -r line; do
+        local program
+        local version
+        program=$(echo "${line}" | cut -d ' ' -f 1)
+        version=$(echo "${line}" | cut -d ' ' -f 2)
+
+        if [ -n "${program}" ]; then
+            if [ -n "${version}" ]; then
+                check_version "${program}" "${version}"
+            else
+                failed "IS_CHECK_VERSIONS" "failed to lookup expected version for ${program}"
+            fi
+        fi
+    done
+}
+
+main() {
+    # Default return code : 0 = no error
+    RC=0
+    # Detect operating system name, version and release
+    detect_os
+
+    main_output_file=$(mktemp --tmpdir="${TMPDIR:-/tmp}" "evocheck.main.XXXXX")
+    files_to_cleanup="${files_to_cleanup} ${main_output_file}"
+
+    #-----------------------------------------------------------
+    # Tests communs à tous les systèmes
+    #-----------------------------------------------------------
+
+    test "${IS_TMP_1777:=1}" = 1 && check_tmp_1777
+    test "${IS_ROOT_0700:=1}" = 1 && check_root_0700
+    test "${IS_USRSHARESCRIPTS:=1}" = 1 && check_usrsharescripts
+    test "${IS_SSHPERMITROOTNO:=1}" = 1 && check_sshpermitrootno
+    test "${IS_EVOMAINTENANCEUSERS:=1}" = 1 && check_evomaintenanceusers
+    # Verification de la configuration d'evomaintenance
+    test "${IS_EVOMAINTENANCECONF:=1}" = 1 && check_evomaintenanceconf
+    test "${IS_PRIVKEYWOLRDREADABLE:=1}" = 1 && check_privatekeyworldreadable
+
+    #-----------------------------------------------------------
+    # Vérifie si c'est une debian et fait les tests appropriés.
+    #-----------------------------------------------------------
+
+    if is_debian; then
+        MINIFW_FILE=$(minifirewall_file)
+
+        test "${IS_LSBRELEASE:=1}" = 1 && check_lsbrelease
+        test "${IS_DPKGWARNING:=1}" = 1 && check_dpkgwarning
+        test "${IS_UMASKSUDOERS:=1}" = 1 && check_umasksudoers
+        test "${IS_NRPEPOSTFIX:=1}" = 1 && check_nrpepostfix
+        test "${IS_MODSECURITY:=1}" = 1 && check_modsecurity
+        test "${IS_CUSTOMSUDOERS:=1}" = 1 && check_customsudoers
+        test "${IS_VARTMPFS:=1}" = 1 && check_vartmpfs
+        test "${IS_SERVEURBASE:=1}" = 1 && check_serveurbase
+        test "${IS_LOGROTATECONF:=1}" = 1 && check_logrotateconf
+        test "${IS_SYSLOGCONF:=1}" = 1 && check_syslogconf
+        test "${IS_DEBIANSECURITY:=1}" = 1 && check_debiansecurity
+        test "${IS_APTITUDEONLY:=1}" = 1 && check_aptitudeonly
+        test "${IS_APTITUDE:=1}" = 1 && check_aptitude
+        test "${IS_APTGETBAK:=1}" = 1 && check_aptgetbak
+        test "${IS_APTICRON:=0}" = 1 && check_apticron
+        test "${IS_USRRO:=1}" = 1 && check_usrro
+        test "${IS_TMPNOEXEC:=1}" = 1 && check_tmpnoexec
+        test "${IS_MOUNT_FSTAB:=1}" = 1 && check_mountfstab
+        test "${IS_LISTCHANGESCONF:=1}" = 1 && check_listchangesconf
+        test "${IS_CUSTOMCRONTAB:=1}" = 1 && check_customcrontab
+        test "${IS_SSHALLOWUSERS:=1}" = 1 && check_sshallowusers
+        test "${IS_DISKPERF:=0}" = 1 && check_diskperf
+        test "${IS_TMOUTPROFILE:=1}" = 1 && check_tmoutprofile
+        test "${IS_ALERT5BOOT:=1}" = 1 && check_alert5boot
+        test "${IS_ALERT5MINIFW:=1}" = 1 && check_alert5minifw
+        test "${IS_ALERT5MINIFW:=1}" = 1 && test "${IS_MINIFW:=1}" = 1 && check_minifw
+        test "${IS_NRPEPERMS:=1}" = 1 && check_nrpeperms
+        test "${IS_MINIFWPERMS:=1}" = 1 && check_minifwperms
+        # Enable when minifirewall is released
+        test "${IS_MINIFWINCLUDES:=0}" = 1 && check_minifw_includes
+        test "${IS_NRPEDISKS:=0}" = 1 && check_nrpedisks
+        test "${IS_NRPEPID:=1}" = 1 && check_nrpepid
+        test "${IS_GRSECPROCS:=1}" = 1 && check_grsecprocs
+        test "${IS_APACHEMUNIN:=1}" = 1 && check_apachemunin
+        test "${IS_MYSQLUTILS:=1}" = 1 && check_mysqlutils
+        test "${IS_RAIDSOFT:=1}" = 1 && check_raidsoft
+        test "${IS_AWSTATSLOGFORMAT:=1}" = 1 && check_awstatslogformat
+        test "${IS_MUNINLOGROTATE:=1}" = 1 && check_muninlogrotate
+        test "${IS_SQUID:=1}" = 1 && check_squid
+        test "${IS_EVOMAINTENANCE_FW:=1}" = 1 && check_evomaintenance_fw
+        test "${IS_MODDEFLATE:=1}" = 1 && check_moddeflate
+        test "${IS_LOG2MAILRUNNING:=1}" = 1 && check_log2mailrunning
+        test "${IS_LOG2MAILAPACHE:=1}" = 1 && check_log2mailapache
+        test "${IS_LOG2MAILMYSQL:=1}" = 1 && check_log2mailmysql
+        test "${IS_LOG2MAILSQUID:=1}" = 1 && check_log2mailsquid
+        test "${IS_BINDCHROOT:=1}" = 1 && check_bindchroot
+        test "${IS_REPVOLATILE:=1}" = 1 && check_repvolatile
+        test "${IS_NETWORK_INTERFACES:=1}" = 1 && check_network_interfaces
+        test "${IS_AUTOIF:=1}" = 1 && check_autoif
+        test "${IS_INTERFACESGW:=1}" = 1 && check_interfacesgw
+        test "${IS_NETWORKING_SERVICE:=1}" = 1 && check_networking_service
+        test "${IS_EVOBACKUP:=1}" = 1 && check_evobackup
+        test "${IS_EVOBACKUP_EXCLUDE_MOUNT:=1}" = 1 && check_evobackup_exclude_mount
+        test "${IS_USERLOGROTATE:=1}" = 1 && check_userlogrotate
+        test "${IS_APACHECTL:=1}" = 1 && check_apachectl
+        test "${IS_APACHESYMLINK:=1}" = 1 && check_apachesymlink
+        test "${IS_APACHEIPINALLOW:=1}" = 1 && check_apacheipinallow
+        test "${IS_MUNINAPACHECONF:=1}" = 1 && check_muninapacheconf
+        test "${IS_SAMBAPINPRIORITY:=1}" = 1 && check_sambainpriority
+        test "${IS_KERNELUPTODATE:=1}" = 1 && check_kerneluptodate
+        test "${IS_UPTIME:=1}" = 1 && check_uptime
+        test "${IS_MUNINRUNNING:=1}" = 1 && check_muninrunning
+        test "${IS_BACKUPUPTODATE:=1}" = 1 && check_backupuptodate
+        test "${IS_ETCGIT:=1}" = 1 && check_etcgit
+        test "${IS_GITPERMS:=1}" = 1 && check_gitperms
+        test "${IS_NOTUPGRADED:=1}" = 1 && check_notupgraded
+        test "${IS_TUNE2FS_M5:=1}" = 1 && check_tune2fs_m5
+        test "${IS_EVOLINUXSUDOGROUP:=1}" = 1 && check_evolinuxsudogroup
+        test "${IS_USERINADMGROUP:=1}" = 1 && check_userinadmgroup
+        test "${IS_APACHE2EVOLINUXCONF:=1}" = 1 && check_apache2evolinuxconf
+        test "${IS_BACKPORTSCONF:=1}" = 1 && check_backportsconf
+        test "${IS_BIND9MUNIN:=1}" = 1 && check_bind9munin
+        test "${IS_BIND9LOGROTATE:=1}" = 1 && check_bind9logrotate
+        test "${IS_BROADCOMFIRMWARE:=1}" = 1 && check_broadcomfirmware
+        test "${IS_HARDWARERAIDTOOL:=1}" = 1 && check_hardwareraidtool
+        test "${IS_LOG2MAILSYSTEMDUNIT:=1}" = 1 && check_log2mailsystemdunit
+        test "${IS_LISTUPGRADE:=1}" = 1 && check_listupgrade
+        test "${IS_MARIADBEVOLINUXCONF:=0}" = 1 && check_mariadbevolinuxconf
+        test "${IS_SQL_BACKUP:=1}" = 1 && check_sql_backup
+        test "${IS_POSTGRES_BACKUP:=1}" = 1 && check_postgres_backup
+        test "${IS_MONGO_BACKUP:=1}" = 1 && check_mongo_backup
+        test "${IS_LDAP_BACKUP:=1}" = 1 && check_ldap_backup
+        test "${IS_REDIS_BACKUP:=1}" = 1 && check_redis_backup
+        test "${IS_ELASTIC_BACKUP:=1}" = 1 && check_elastic_backup
+        test "${IS_MARIADBSYSTEMDUNIT:=1}" = 1 && check_mariadbsystemdunit
+        test "${IS_MYSQLMUNIN:=1}" = 1 && check_mysqlmunin
+        test "${IS_MYSQLNRPE:=1}" = 1 && check_mysqlnrpe
+        test "${IS_PHPEVOLINUXCONF:=0}" = 1 && check_phpevolinuxconf
+        test "${IS_SQUIDLOGROTATE:=1}" = 1 && check_squidlogrotate
+        test "${IS_SQUIDEVOLINUXCONF:=1}" = 1 && check_squidevolinuxconf
+        test "${IS_DUPLICATE_FS_LABEL:=1}" = 1 && check_duplicate_fs_label
+        test "${IS_EVOLIX_USER:=1}" = 1 && check_evolix_user
+        test "${IS_EVOACME_CRON:=1}" = 1 && check_evoacme_cron
+        test "${IS_EVOACME_LIVELINKS:=1}" = 1 && check_evoacme_livelinks
+        test "${IS_APACHE_CONFENABLED:=1}" = 1 && check_apache_confenabled
+        test "${IS_MELTDOWN_SPECTRE:=1}" = 1 && check_meltdown_spectre
+        test "${IS_OLD_HOME_DIR:=0}" = 1 && check_old_home_dir
+        test "${IS_EVOBACKUP_INCS:=1}" = 1 && check_evobackup_incs
+        test "${IS_OSPROBER:=1}" = 1 && check_osprober
+        test "${IS_JESSIE_BACKPORTS:=1}" = 1 && check_jessie_backports
+        test "${IS_APT_VALID_UNTIL:=1}" = 1 && check_apt_valid_until
+        test "${IS_CHROOTED_BINARY_UPTODATE:=1}" = 1 && check_chrooted_binary_uptodate
+        test "${IS_NGINX_LETSENCRYPT_UPTODATE:=1}" = 1 && check_nginx_letsencrypt_uptodate
+        test "${IS_LXC_CONTAINER_RESOLV_CONF:=1}" = 1 && check_lxc_container_resolv_conf
+        test "${IS_CHECK_VERSIONS:=1}" = 1 && check_versions
+    fi
+
+    #-----------------------------------------------------------
+    # Tests spécifiques à OpenBSD
+    #-----------------------------------------------------------
+
+    if is_openbsd; then
+
+        if [ "${IS_SOFTDEP:=1}" = 1 ]; then
+            grep -q "softdep" /etc/fstab || failed "IS_SOFTDEP"
+        fi
+
+        if [ "${IS_WHEEL:=1}" = 1 ]; then
+            grep -qE "^%wheel.*$" /etc/sudoers || failed "IS_WHEEL"
+        fi
+
+        if [ "${IS_SUDOADMIN:=1}" = 1 ]; then
+            grep -qE "^User_Alias ADMIN=.*$" /etc/sudoers || failed "IS_SUDOADMIN"
+        fi
+
+        if [ "${IS_PKGMIRROR:=1}" = 1 ]; then
+            grep -qE "^export PKG_PATH=http://ftp\.fr\.openbsd\.org/pub/OpenBSD/[0-9.]+/packages/[a-z0-9]+/$" /root/.profile \
+                || failed "IS_PKGMIRROR"
+        fi
+
+        if [ "${IS_HISTORY:=1}" = 1 ]; then
+            f=/root/.profile
+            { grep -q "^HISTFILE=\$HOME/.histfile" $f \
+                && grep -q "^export HISTFILE" $f \
+                && grep -q "^HISTSIZE=1000" $f \
+                && grep -q "^export HISTSIZE" $f;
+            } || failed "IS_HISTORY"
+        fi
+
+        if [ "${IS_VIM:=1}" = 1 ]; then
+            command -v vim > /dev/null 2>&1 || failed "IS_VIM"
+        fi
+
+        if [ "${IS_TTYC0SECURE:=1}" = 1 ]; then
+            grep -Eqv "^ttyC0.*secure$" /etc/ttys || failed "IS_TTYC0SECURE"
+        fi
+
+        if [ "${IS_CUSTOMSYSLOG:=1}" = 1 ]; then
+            grep -q "Evolix" /etc/newsyslog.conf || failed "IS_CUSTOMSYSLOG"
+        fi
+
+        if [ "${IS_NOINETD:=1}" = 1 ]; then
+            grep -q "inetd=NO" /etc/rc.conf.local 2>/dev/null || failed "IS_NOINETD"
+        fi
+
+        if [ "${IS_SUDOMAINT:=1}" = 1 ]; then
+            f=/etc/sudoers
+            { grep -q "Cmnd_Alias MAINT = /usr/share/scripts/evomaintenance.sh" $f \
+                && grep -q "ADMIN ALL=NOPASSWD: MAINT" $f;
+            } || failed "IS_SUDOMAINT"
+        fi
+
+        if [ "${IS_POSTGRESQL:=1}" = 1 ]; then
+            pkg info | grep -q postgresql-client || failed "IS_POSTGRESQL" "postgresql-client is not installed"
+        fi
+
+        if [ "${IS_NRPE:=1}" = 1 ]; then
+            { pkg info | grep -qE "nagios-plugins-[0-9.]" \
+                && pkg info | grep -q nagios-plugins-ntp \
+                && pkg info | grep -q nrpe;
+            } || failed "IS_NRPE" "NRPE is not installed"
+        fi
+
+    # if [ "${IS_NRPEDISKS:=1}" = 1 ]; then
+    #     NRPEDISKS=$(grep command.check_disk /etc/nrpe.cfg 2>/dev/null | grep "^command.check_disk[0-9]" | sed -e "s/^command.check_disk\([0-9]\+\).*/\1/" | sort -n | tail -1)
+    #     DFDISKS=$(df -Pl | grep -E -v "(^Filesystem|/lib/init/rw|/dev/shm|udev|rpc_pipefs)" | wc -l)
+    #     [ "$NRPEDISKS" = "$DFDISKS" ] || failed "IS_NRPEDISKS"
+    # fi
+
+    # Verification du check_mailq dans nrpe.cfg (celui-ci doit avoir l'option "-M postfix" si le MTA est Postfix)
+    #
+    # if [ "${IS_NRPEPOSTFIX:=1}" = 1 ]; then
+    #     pkg info | grep -q postfix && ( grep -q "^command.*check_mailq -M postfix" /etc/nrpe.cfg 2>/dev/null || failed "IS_NRPEPOSTFIX" )
+    # fi
+
+        if [ "${IS_NRPEDAEMON:=1}" = 1 ]; then
+            grep -q "echo -n ' nrpe';        /usr/local/sbin/nrpe -d" /etc/rc.local \
+                || failed "IS_NREPEDAEMON"
+        fi
+
+        if [ "${IS_ALERTBOOT:=1}" = 1 ]; then
+            grep -qE "^date \| mail -sboot/reboot .*evolix.fr$" /etc/rc.local \
+                || failed "IS_ALERTBOOT"
+        fi
+
+        if [ "${IS_RSYNC:=1}" = 1 ]; then
+            pkg info | grep -q rsync || failed "IS_RSYNC"
+        fi
+
+        if [ "${IS_CRONPATH:=1}" = 1 ]; then
+            grep -q "PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin" /var/cron/tabs/root \
+                || failed "IS_CRONPATH"
+        fi
+
+        #TODO
+        # - Check en profondeur de postfix
+        # - NRPEDISK et NRPEPOSTFIX
+    fi
+
+    if [ -f "${main_output_file}" ]; then
+        lines_found=$(wc -l < "${main_output_file}")
+        # shellcheck disable=SC2086
+        if [ ${lines_found} -gt 0 ]; then
+
+            cat "${main_output_file}" 2>&1
+        fi
+    fi
+
+    exit ${RC}
+}
+cleanup_temp_files() {
+    # shellcheck disable=SC2086
+    rm -f ${files_to_cleanup}
+}
+
+PROGNAME=$(basename "$0")
+# shellcheck disable=SC2034
+readonly PROGNAME
+
+# shellcheck disable=SC2124
+ARGS=$@
+readonly ARGS
+
+# Disable LANG*
+export LANG=C
+export LANGUAGE=C
+
+files_to_cleanup=""
+# shellcheck disable=SC2064
+trap cleanup_temp_files 0
+
+# Source configuration file
+# shellcheck disable=SC1091
+test -f /etc/evocheck.cf && . /etc/evocheck.cf
+
+# Parse options
+# based on https://gist.github.com/deshion/10d3cb5f88a21671e17a
+while :; do
+    case $1 in
+        -h|-\?|--help)
+            show_help
+            exit 0
+            ;;
+        --version)
+            show_version
+            exit 0
+            ;;
+        --cron)
+            IS_KERNELUPTODATE=0
+            IS_UPTIME=0
+            IS_MELTDOWN_SPECTRE=0
+            IS_CHECK_VERSIONS=0
+            ;;
+        -v|--verbose)
+            VERBOSE=1
+            ;;
+        -q|--quiet)
+            QUIET=1
+            VERBOSE=0
+            ;;
+        --)
+            # End of all options.
+            shift
+            break
+            ;;
+        -?*|[[:alnum:]]*)
+            # ignore unknown options
+            if [ "${QUIET}" != 1 ]; then
+                printf 'WARN: Unknown option (ignored): %s\n' "$1" >&2
+            fi
+            ;;
+        *)
+            # Default case: If no more options then break out of the loop.
+            break
+            ;;
+    esac
+
+    shift
+done
+
+# shellcheck disable=SC2086
+main ${ARGS}