sshpermitrootno: Use effective configuration.

Fixes #129.

.gitignore

@@ -1,3 +1,4 @@
 .vagrant
 
 *.swp
+.DS_Store

CHANGELOG

@@ -15,13 +15,118 @@ and this project **does not adhere to [Semantic Versioning](http://semver.org/sp
 
 ### 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

evocheck.sh

@@ -4,7 +4,8 @@
 # Script to verify compliance of a Debian/OpenBSD server
 # powered by Evolix
 
-readonly VERSION="20.12"
+VERSION="22.06"
+readonly VERSION
 
 # base functions
 
@@ -12,13 +13,14 @@ show_version() {
     cat <<END
 evocheck version ${VERSION}
 
-Copyright 2009-2019 Evolix <info@evolix.fr>,
+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>
+                    Victor Laborie <vlaborie@evolix.fr>,
+                    Alexis Ben Miloud--Josselin <abenmiloud@evolix.fr>,
                     and others.
 
 evocheck comes with ABSOLUTELY NO WARRANTY.  This is free software,
@@ -62,6 +64,8 @@ detect_os() {
                 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
@@ -71,7 +75,7 @@ detect_os() {
 }
 
 is_debian() {
-  test -n "${DEBIAN_RELEASE}"
+    test -n "${DEBIAN_RELEASE}"
 }
 is_debian_lenny() {
     test "${DEBIAN_RELEASE}" = "lenny"
@@ -91,6 +95,12 @@ is_debian_stretch() {
 is_debian_buster() {
     test "${DEBIAN_RELEASE}" = "buster"
 }
+is_debian_bullseye() {
+    test "${DEBIAN_RELEASE}" = "bullseye"
+}
+is_debian_bookworm() {
+    test "${DEBIAN_RELEASE}" = "bookworm"
+}
 debian_release() {
     printf "%s" "${DEBIAN_RELEASE}"
 }
@@ -133,9 +143,9 @@ failed() {
     RC=1
     if [ "${QUIET}" != 1 ]; then
         if [ -n "${check_comments}" ] && [ "${VERBOSE}" = 1 ]; then
-            printf "%s FAILED! %s\n" "${check_name}" "${check_comments}" 2>&1
+            printf "%s FAILED! %s\n" "${check_name}" "${check_comments}" >> "${main_output_file}"
         else
-            printf "%s FAILED!\n" "${check_name}" 2>&1
+            printf "%s FAILED!\n" "${check_name}" >> "${main_output_file}"
         fi
     fi
 }
@@ -147,7 +157,7 @@ check_lsbrelease(){
         ## 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" = "$rhs" || failed "IS_LSBRELEASE" "release is not consistent between lsb_release and /etc/debian_version"
+        test "$lhs" = "$rhs" || failed "IS_LSBRELEASE" "release is not consistent between lsb_release (${lhs}) and /etc/debian_version (${rhs})"
     else
         failed "IS_LSBRELEASE" "lsb_release is missing or not executable"
     fi
@@ -165,7 +175,7 @@ check_dpkgwarning() {
             test -e /etc/apt/apt.conf \
                 && failed "IS_DPKGWARNING" "/etc/apt/apt.conf is missing"
         fi
-    elif is_debian_stretch || is_debian_buster; then
+    elif is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         test -e /etc/apt/apt.conf.d/z-evolinux.conf \
             || failed "IS_DPKGWARNING" "/etc/apt/apt.conf.d/z-evolinux.conf is missing"
     fi
@@ -211,7 +221,6 @@ check_vartmpfs() {
     else
         df /var/tmp | grep -q tmpfs || failed "IS_VARTMPFS" "/var/tmp is not a tmpfs"
     fi
-    
 }
 check_serveurbase() {
     is_installed serveur-base || failed "IS_SERVEURBASE" "serveur-base package is not installed"
@@ -224,8 +233,20 @@ check_syslogconf() {
         || failed "IS_SYSLOGCONF" "syslog evolix config file missing"
 }
 check_debiansecurity() {
-    grep -q "^deb.*security" /etc/apt/sources.list \
-        || failed "IS_DEBIANSECURITY" "missing debian security repository"
+    if is_debian_bullseye; then
+        # https://www.debian.org/releases/bullseye/amd64/release-notes/ch-information.html#security-archive
+        # https://www.debian.org/security/
+        pattern="^deb http://security\.debian\.org/debian-security/? bullseye-security main"
+    elif is_debian_buster; then
+        pattern="^deb http://security\.debian\.org/debian-security/? buster/updates main"
+    elif is_debian_stretch; then
+        pattern="^deb http://security\.debian\.org/debian-security/? stretch/updates main"
+    else
+        pattern="^deb.*security"
+    fi
+
+    source_file="/etc/apt/sources.list"
+    grep -qE "${pattern}" "${source_file}" || failed "IS_DEBIANSECURITY" "missing debian security repository"
 }
 check_aptitudeonly() {
     if is_debian_squeeze || is_debian_wheezy; then
@@ -234,12 +255,12 @@ check_aptitudeonly() {
     fi
 }
 check_aptitude() {
-    if is_debian_jessie || is_debian_stretch || is_debian_buster; then
+    if is_debian_jessie || is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         test -e /usr/bin/aptitude && failed "IS_APTITUDE" "aptitude may not be installed on Debian >=8"
     fi
 }
 check_aptgetbak() {
-    if is_debian_jessie || is_debian_stretch || is_debian_buster; then
+    if is_debian_jessie || is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         test -e /usr/bin/apt-get.bak && failed "IS_APTGETBAK" "prohibit the installation of apt-get.bak with dpkg-divert(1)"
     fi
 }
@@ -276,7 +297,7 @@ check_mountfstab() {
     fi
 }
 check_listchangesconf() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         if is_installed apt-listchanges; then
             failed "IS_LISTCHANGESCONF" "apt-listchanges must not be installed on Debian >=9"
         fi
@@ -296,7 +317,7 @@ check_customcrontab() {
     test "$found_lines" = 4 && failed "IS_CUSTOMCRONTAB" "missing custom field in crontab"
 }
 check_sshallowusers() {
-    grep -E -qi "(AllowUsers|AllowGroups)" /etc/ssh/sshd_config \
+    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() {
@@ -307,26 +328,34 @@ 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; then
+    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"
-        test -f /etc/systemd/system/alert5.service || failed "IS_ALERT5BOOT" "alert5 unit file is missing"
-        systemctl is-enabled alert5 -q || failed "IS_ALERT5BOOT" "alert5 unit is not enabled"
+        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
 }
 check_alert5minifw() {
-    if is_debian_buster; then
+    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
@@ -336,6 +365,13 @@ 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*$" \
         || failed "IS_MINIFW" "minifirewall seems not starded"
 }
+check_minifw_includes() {
+    if is_debian_bullseye; then
+        if grep -q -e '/sbin/iptables' -e '/sbin/ip6tables' "${MINIFW_FILE}"; then
+            failed "IS_MINIFWINCLUDES" "minifirewall has direct iptables invocations in ${MINIFW_FILE} that should go in /etc/minifirewall.d/"
+        fi
+    fi
+}
 check_nrpeperms() {
     if [ -d /etc/nagios ]; then
         nagiosDir="/etc/nagios"
@@ -357,7 +393,11 @@ check_nrpedisks() {
     test "$NRPEDISKS" = "$DFDISKS" || failed "IS_NRPEDISKS" "there must be $DFDISKS check_disk in nrpe.cfg"
 }
 check_nrpepid() {
-    if ! is_debian_squeeze; then
+    if is_debian_bullseye; then
+        { test -e /etc/nagios/nrpe.cfg \
+            && grep -q "^pid_file=/run/nagios/nrpe.pid" /etc/nagios/nrpe.cfg;
+        } || failed "IS_NRPEPID" "missing or wrong pid_file directive in nrpe.cfg"
+    elif ! is_debian_squeeze; then
         { test -e /etc/nagios/nrpe.cfg \
             && grep -q "^pid_file=/var/run/nagios/nrpe.pid" /etc/nagios/nrpe.cfg;
         } || failed "IS_NRPEPID" "missing or wrong pid_file directive in nrpe.cfg"
@@ -372,7 +412,7 @@ check_grsecprocs() {
 }
 check_apachemunin() {
     if test -e /etc/apache2/apache2.conf; then
-        if is_debian_stretch || is_debian_buster; then
+        if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
             { test -h /etc/apache2/mods-enabled/status.load \
                 && test -h /etc/munin/plugins/apache_accesses \
                 && test -h /etc/munin/plugins/apache_processes \
@@ -392,17 +432,20 @@ check_apachemunin() {
 check_mysqlutils() {
     MYSQL_ADMIN=${MYSQL_ADMIN:-mysqladmin}
     if is_installed mysql-server; then
-        # You can configure MYSQL_ADMIN in evocheck.cf
-        if ! grep -qs "$MYSQL_ADMIN" /root/.my.cnf; then
-            failed "IS_MYSQLUTILS" "mysqladmin missing in /root/.my.cnf"
+        # With Debian 11 and later, root can connect to MariaDB with the socket
+        if is_debian_wheezy || is_debian_jessie ||  is_debian_stretch || is_debian_buster; then
+            # You can configure MYSQL_ADMIN in evocheck.cf
+            if ! grep -qs "^user *= *${MYSQL_ADMIN}" /root/.my.cnf; then
+                failed "IS_MYSQLUTILS" "${MYSQL_ADMIN} missing in /root/.my.cnf"
+            fi
         fi
         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 debian-sys-maint /root/.mytop; then
-            failed "IS_MYSQLUTILS" "debian-sys-maint missing in /root/.mytop"
+        if ! grep -qs '^user *=' /root/.mytop; then
+            failed "IS_MYSQLUTILS" "credentials missing in /root/.mytop"
         fi
     fi
 }
@@ -431,7 +474,7 @@ check_muninlogrotate() {
 }
 # Verification de l'activation de Squid dans le cas d'un pack mail
 check_squid() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         squidconffile="/etc/squid/evolinux-custom.conf"
     else
         squidconffile="/etc/squid*/squid.conf"
@@ -444,7 +487,8 @@ check_squid() {
             && 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";
-        } || failed "IS_SQUID" "missing squid rules in minifirewall"
+        } || grep -qE "^PROXY='?on'?" "$MINIFW_FILE" \
+          || failed "IS_SQUID" "missing squid rules in minifirewall"
     fi
 }
 check_evomaintenance_fw() {
@@ -473,7 +517,7 @@ check_log2mailrunning() {
     fi
 }
 check_log2mailapache() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         conf=/etc/log2mail/config/apache
     else
         conf=/etc/log2mail/config/default
@@ -532,8 +576,8 @@ check_network_interfaces() {
 }
 # Verify if all if are in auto
 check_autoif() {
-    if is_debian_stretch || is_debian_buster; then
-        interfaces=$(/sbin/ip address show up | grep "^[0-9]*:" | grep -E -v "(lo|vnet|docker|veth|tun|tap|macvtap|vrrp)" | cut -d " " -f 2 | tr -d : | cut -d@ -f1 | tr "\n" " ")
+    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
@@ -551,6 +595,16 @@ check_interfacesgw() {
     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
+        fi
+    fi
+}
 # Verification de la mise en place d'evobackup
 check_evobackup() {
     evobackup_found=$(find /etc/cron* -name '*evobackup*' | wc -l)
@@ -558,16 +612,23 @@ check_evobackup() {
 }
 # Vérification de l'exclusion des montages (NFS) dans les sauvegardes
 check_evobackup_exclude_mount() {
-    excludes_file=$(mktemp)
-    # shellcheck disable=SC2064
-    trap "rm -f ${excludes_file}" 0
+    excludes_file=$(mktemp --tmpdir="${TMPDIR:-/tmp}" "evocheck.evobackup_exclude_mount.XXXXX")
+    files_to_cleanup="${files_to_cleanup} ${excludes_file}"
+
     # shellcheck disable=SC2044
     for evobackup_file in $(find /etc/cron* -name '*evobackup*' | grep -v -E ".disabled$"); do
-        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 ${evobackup_file} backup script"
-        done
+        # if the file seems to be a backup script, with an Rsync invocation
+        if grep -q "^\s*rsync" "${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 ${evobackup_file} backup script"
+                done
+            fi
+        fi
     done
 }
 # Verification de la presence du userlogrotate
@@ -681,6 +742,7 @@ check_backupuptodate() {
     backup_dir="/home/backup"
     if [ -d "${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")
@@ -771,15 +833,17 @@ check_tune2fs_m5() {
     done
 }
 check_evolinuxsudogroup() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         if grep -q "^evolinux-sudo:" /etc/group; then
-            grep -qE '^%evolinux-sudo +ALL ?= ?\(ALL:ALL\) ALL' /etc/sudoers.d/evolinux \
-                || failed "IS_EVOLINUXSUDOGROUP" "missing evolinux-sudo directive in sudoers file"
+            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
 }
 check_userinadmgroup() {
-    if is_debian_stretch || is_debian_buster; then
+    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
@@ -790,8 +854,8 @@ check_userinadmgroup() {
     fi
 }
 check_apache2evolinuxconf() {
-    if is_debian_stretch || is_debian_buster; then
-        if test -d /etc/apache2; then
+    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;
@@ -800,7 +864,7 @@ check_apache2evolinuxconf() {
     fi
 }
 check_backportsconf() {
-    if is_debian_stretch || is_debian_buster; then
+    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
@@ -810,7 +874,7 @@ check_backportsconf() {
     fi
 }
 check_bind9munin() {
-    if is_debian_stretch || is_debian_buster; then
+    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;
@@ -819,7 +883,7 @@ check_bind9munin() {
     fi
 }
 check_bind9logrotate() {
-    if is_debian_stretch || is_debian_buster; then
+    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
@@ -840,7 +904,7 @@ check_broadcomfirmware() {
 check_hardwareraidtool() {
     LSPCI_BIN=$(command -v lspci)
     if [ -x "${LSPCI_BIN}" ]; then
-        if ${LSPCI_BIN} | grep -q 'MegaRAID SAS'; then
+        if ${LSPCI_BIN} | grep -q 'MegaRAID'; then
             # shellcheck disable=SC2015
             is_installed megacli && { is_installed megaclisas-status || is_installed megaraidsas-status; } \
                 || failed "IS_HARDWARERAIDTOOL" "Mega tools not found"
@@ -853,7 +917,7 @@ check_hardwareraidtool() {
     fi
 }
 check_log2mailsystemdunit() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         systemctl -q is-active log2mail.service \
             || failed "IS_LOG2MAILSYSTEMDUNIT" "log2mail unit not running"
         test -f /etc/systemd/system/log2mail.service \
@@ -869,7 +933,7 @@ check_listupgrade() {
         || failed "IS_LISTUPGRADE" "missing listupgrade script or not executable"
 }
 check_mariadbevolinuxconf() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         if is_installed mariadb-server; then
             { test -f /etc/mysql/mariadb.conf.d/z-evolinux-defaults.cnf \
                 && test -f /etc/mysql/mariadb.conf.d/zzz-evolinux-custom.cnf;
@@ -907,7 +971,7 @@ check_mongo_backup() {
         # You could change the default path in /etc/evocheck.cf
         MONGO_BACKUP_PATH=${MONGO_BACKUP_PATH:-"/home/backup/mongodump"}
         if [ -d "$MONGO_BACKUP_PATH" ]; then
-            for file in "${MONGO_BACKUP_PATH}"/*/*.{json,bson}; do
+            for file in "${MONGO_BACKUP_PATH}"/*/*.{json,bson}.*; do
                 # Skip indexes file.
                 if ! [[ "$file" =~ indexes ]]; then
                     limit=$(date +"%s" -d "now - 2 day")
@@ -945,6 +1009,7 @@ check_elastic_backup() {
     fi
 }
 check_mariadbsystemdunit() {
+    # TODO: check if it is still needed for bullseye
     if is_debian_stretch || is_debian_buster; then
         if is_installed mariadb-server; then
             if systemctl -q is-active mariadb.service; then
@@ -955,7 +1020,7 @@ check_mariadbsystemdunit() {
     fi
 }
 check_mysqlmunin() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         if is_installed mariadb-server; then
             for file in mysql_bytes mysql_queries mysql_slowqueries \
                 mysql_threads mysql_connections mysql_files_tables \
@@ -969,11 +1034,13 @@ check_mysqlmunin() {
                     test "${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
 }
 check_mysqlnrpe() {
-    if is_debian_stretch || is_debian_buster; then
+    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 ${nagios_file}; then
@@ -989,9 +1056,10 @@ check_mysqlnrpe() {
     fi
 }
 check_phpevolinuxconf() {
-    if is_debian_stretch || is_debian_buster; then
-        is_debian_stretch && phpVersion="7.0"
-        is_debian_buster && phpVersion="7.3"
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
+        is_debian_stretch  && phpVersion="7.0"
+        is_debian_buster   && phpVersion="7.3"
+        is_debian_bullseye && phpVersion="7.4"
         if is_installed php; then
             { test -f /etc/php/${phpVersion}/cli/conf.d/z-evolinux-defaults.ini \
                 && test -f /etc/php/${phpVersion}/cli/conf.d/zzz-evolinux-custom.ini
@@ -1000,15 +1068,15 @@ check_phpevolinuxconf() {
     fi
 }
 check_squidlogrotate() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         if is_installed squid; then
-            grep -q monthly /etc/logrotate.d/squid \
+            grep -q -e monthly -e daily /etc/logrotate.d/squid \
                 || failed "IS_SQUIDLOGROTATE" "missing squid logrotate file"
         fi
     fi
 }
 check_squidevolinuxconf() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         if is_installed squid; then
             { grep -qs "^CONFIG=/etc/squid/evolinux-defaults.conf$" /etc/default/squid \
                 && test -f /etc/squid/evolinux-defaults.conf \
@@ -1024,8 +1092,10 @@ check_squidevolinuxconf() {
 check_duplicate_fs_label() {
     # Do it only if thereis blkid binary
     BLKID_BIN=$(command -v blkid)
-    if [ -x "$BLKID_BIN" ]; then
-        tmpFile=$(mktemp -p /tmp)
+    if [ -n "$BLKID_BIN" ]; then
+        tmpFile=$(mktemp --tmpdir="${TMPDIR:-/tmp}" "evocheck.duplicate_fs_label.XXXXX")
+        files_to_cleanup="${files_to_cleanup} ${tmpFile}"
+
         parts=$($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" >> "$tmpFile"
@@ -1038,7 +1108,6 @@ check_duplicate_fs_label() {
             labels=$(echo -n $tmpOutput | tr '\n' ' ')
             failed "IS_DUPLICATE_FS_LABEL" "Duplicate labels: $labels"
         fi
-        rm "$tmpFile"
     else
         failed "IS_DUPLICATE_FS_LABEL" "blkid not found in ${PATH}"
     fi
@@ -1083,7 +1152,7 @@ check_apache_confenabled() {
     # Starting from Jessie and Apache 2.4, /etc/apache2/conf.d/
     # must be replaced by conf-available/ and config files symlinked
     # to conf-enabled/
-    if is_debian_jessie || is_debian_stretch || is_debian_buster; then
+    if is_debian_jessie || is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         if [ -f /etc/apache2/apache2.conf ]; then
             test -d /etc/apache2/conf.d/ \
                 && failed "IS_APACHE_CONFENABLED" "apache's conf.d directory must not exists"
@@ -1095,7 +1164,7 @@ check_apache_confenabled() {
 check_meltdown_spectre() {
     # For Stretch, detection is easy as the kernel use
     # /sys/devices/system/cpu/vulnerabilities/
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         for vuln in meltdown spectre_v1 spectre_v2; do
             test -f "/sys/devices/system/cpu/vulnerabilities/$vuln" \
                 || failed "IS_MELTDOWN_SPECTRE" "vulnerable to $vuln"
@@ -1165,7 +1234,7 @@ check_sshpermitrootno() {
     fi
 }
 check_evomaintenanceusers() {
-    if is_debian_stretch || is_debian_buster; then
+    if is_debian_stretch || is_debian_buster || is_debian_bullseye; then
         users=$(getent group evolinux-sudo | cut -d':' -f4 | tr ',' ' ')
     else
         if [ -f /etc/sudoers.d/evolinux ]; then
@@ -1321,6 +1390,135 @@ check_lxc_container_resolv_conf() {
         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
@@ -1328,6 +1526,9 @@ main() {
     # 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} ${main_output_file}"
+
     #-----------------------------------------------------------
     # Tests communs à tous les systèmes
     #-----------------------------------------------------------
@@ -1376,6 +1577,8 @@ main() {
         test "${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 "${IS_GRSECPROCS:=1}" = 1 && check_grsecprocs
@@ -1396,6 +1599,7 @@ main() {
         test "${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
@@ -1449,6 +1653,7 @@ main() {
         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
 
     #-----------------------------------------------------------
@@ -1553,18 +1758,38 @@ main() {
         # - 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 "$0")
 # shellcheck disable=SC2034
-readonly PROGNAME=$(basename "$0")
-# shellcheck disable=2124
-readonly ARGS=$@
+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
@@ -1585,6 +1810,7 @@ while :; do
             IS_KERNELUPTODATE=0
             IS_UPTIME=0
             IS_MELTDOWN_SPECTRE=0
+            IS_CHECK_VERSIONS=0
             ;;
         -v|--verbose)
             VERBOSE=1