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#!/bin/sh
# EvoCheck script
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# version 0.3.2-beta
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# Copyright 2009 Gregory Colpart <reg@evolix.fr>, Evolix <info@evolix.fr>
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# Disable LANG*
export LANG = C
export LANGUAGE = C
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# 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_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_NRPEPERMS = 1
IS_MINIFWPERMS = 1
IS_NRPEDISKS = 1
IS_NRPEPOSTFIX = 1
IS_GRSECPROCS = 1
IS_UMASKSUDOERS = 1
IS_EVOMAINTENANCEUSERS = 1
IS_APACHEMUNIN = 1
IS_MYSQLUTILS = 1
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IS_RAIDSOFT = 1
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IS_AWSTATSLOGFORMAT = 1
IS_MUNINLOGROTATE = 1
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IS_EVOMAINTENANCECONF = 1
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IS_METCHE = 1
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IS_SQUID = 1
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IS_MODDEFLATE = 1
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IS_LOG2MAILAPACHE = 1
IS_LOG2MAILMYSQL = 1
IS_LOG2MAILSQUID = 1
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IS_BINDCHROOT = 1
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IS_REPVOLATILE = 1
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IS_AUTOIF = 1
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IS_TOOMUCHDEBIANSYSMAINT = 1
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# Source configuration file
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test -f /etc/evocheck.cf && . /etc/evocheck.cf
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# Functions
function is_pack_web {
test -e /usr/share/scripts/web-add.sh
}
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function is_pack_samba {
test -e /usr/share/scripts/add.pl
}
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function is_installed {
for pkg in $* ; do
dpkg -l $pkg 2>/dev/null | grep ^ii >/dev/null || return 1
done
}
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if [ " $IS_TMP_1777 " = 1 ] ; then
ls -ld /tmp | grep drwxrwxrwt > /dev/null || echo 'IS_TMP_1777 FAILED!'
fi
if [ " $IS_ROOT_0700 " = 1 ] ; then
ls -ld /root | grep drwx------ > /dev/null || echo 'IS_ROOT_0700 FAILED!'
fi
if [ " $IS_VARTMPFS " = 1 ] ; then
df /var/tmp | grep tmpfs > /dev/null || echo 'IS_VARTMPFS FAILED!'
fi
if [ " $IS_USRSHARESCRIPTS " = 1 ] ; then
ls -ld /usr/share/scripts | grep drwx------ > /dev/null || echo 'IS_USRSHARESCRIPTS FAILED!'
fi
if [ " $IS_SERVEURBASE " = 1 ] ; then
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is_installed server-base || echo 'IS_SERVEURBASE FAILED!'
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fi
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if [ " $IS_LOGROTATECONF " = 1 ] ; then
test -e /etc/logrotate.d/zsyslog || echo 'IS_LOGROTATECONF FAILED!'
fi
if [ " $IS_SYSLOGCONF " = 1 ] ; then
grep " ^# Syslog for Pack Evolix serveur $" /etc/*syslog.conf > /dev/null || echo 'IS_SYSLOGCONF FAILED!'
fi
if [ " $IS_DEBIANSECURITY " = 1 ] ; then
grep "^deb.*security" /etc/apt/sources.list > /dev/null || echo 'IS_DEBIANSECURITY FAILED!'
fi
if [ " $IS_APTITUDEONLY " = 1 ] ; then
test -e /usr/bin/apt-get && echo 'IS_APTITUDEONLY FAILED!'
fi
if [ " $IS_USRRO " = 1 ] ; then
grep /usr /etc/fstab | grep ro > /dev/null || echo 'IS_USRRO FAILED!'
fi
if [ " $IS_TMPNOEXEC " = 1 ] ; then
mount | grep "on /tmp" | grep noexec > /dev/null || echo 'IS_TMPNOEXEC FAILED!'
fi
if [ " $IS_LISTCHANGESCONF " = 1 ] ; then
egrep "(which=both|confirm=1)" /etc/apt/listchanges.conf | wc -l | grep ^2$ > /dev/null || echo 'IS_LISTCHANGESCONF FAILED!'
fi
if [ " $IS_DPKGWARNING " = 1 ] && ( [ " $IS_USRRO " = 1 ] || [ " $IS_TMPNOEXEC " = 1 ] ) ; then
egrep -i "(Pre-Invoke ..echo Are you sure to have rw on|Post-Invoke ..echo Dont forget to mount -o remount)" /etc/apt/apt.conf | wc -l | grep ^2$ > /dev/null || echo 'IS_DPKGWARNING FAILED!'
fi
if [ " $IS_CUSTOMCRONTAB " = 1 ] ; then
egrep "^(17 \*|25 6|47 6|52 6)" /etc/crontab | wc -l | grep ^4$ > /dev/null && echo 'IS_CUSTOMCRONTAB FAILED!'
fi
if [ " $IS_CUSTOMSUDOERS " = 1 ] ; then
egrep "env_reset,.*umask=0077" /etc/sudoers > /dev/null || echo 'IS_CUSTOMSUDOERS FAILED!'
fi
if [ " $IS_SSHPERMITROOTNO " = 1 ] ; then
egrep -i "PermitRoot.*no" /etc/ssh/sshd_config > /dev/null || echo 'IS_SSHPERMITROOTNO FAILED!'
fi
if [ " $IS_SSHALLOWUSERS " = 1 ] ; then
egrep -i "AllowUsers" /etc/ssh/sshd_config > /dev/null || echo 'IS_SSHALLOWUSERS FAILED!'
fi
if [ " $IS_DISKPERF " = 1 ] ; then
test -e /root/disk-perf.txt || echo 'IS_DISKPERF FAILED!'
fi
if [ " $IS_TMOUTPROFILE " = 1 ] ; then
grep TMOUT = /etc/profile > /dev/null || echo 'IS_TMOUTPROFILE FAILED!'
fi
if [ " $IS_ALERT5BOOT " = 1 ] ; then
grep ^date /etc/rc2.d/S99alert5 > /dev/null || echo 'IS_ALERT5BOOT FAILED!'
fi
if [ " $IS_ALERT5MINIFW " = 1 ] ; then
grep ^/etc/init.d/minifirewall /etc/rc2.d/S99alert5 > /dev/null || echo 'IS_ALERT5MINIFW FAILED!'
fi
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if [ " $IS_NRPEPERMS " = 1 ] ; then
ls -ld /etc/nagios | grep drwxr-x--- > /dev/null || echo 'IS_NRPEPERMS FAILED!'
fi
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if [ " $IS_MINIFWPERMS " = 1 ] ; then
ls -l /etc/firewall.rc | grep -- -rw------- > /dev/null || echo 'IS_MINIFWPERMS FAILED!'
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)
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DFDISKS = $( df -Pl | egrep -v "(^Filesystem|/lib/init/rw|/dev/shm|udev|rpc_pipefs)" | wc -l)
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[ " $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
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is_installed postfix && ( grep "^command.*check_mailq -M postfix" /etc/nagios/nrpe.cfg > /dev/null || echo 'IS_NRPEPOSTFIX FAILED!' )
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fi
if [ " $IS_GRSECPROCS " = 1 ] ; then
uname -a | grep grsec >/dev/null && ( grep ^command.check_total_procs..sudo /etc/nagios/nrpe.cfg >/dev/null && grep -A1 "^\[processes\]" /etc/munin/plugin-conf.d/munin-node | grep "^user root" >/dev/null || echo 'IS_GRSECPROCS FAILED!' )
fi
if [ " $IS_UMASKSUDOERS " = 1 ] ; then
grep ^Defaults.*umask= 0077 /etc/sudoers >/dev/null || echo 'IS_UMASKSUDOERS FAILED!'
fi
if [ " $IS_EVOMAINTENANCEUSERS " = 1 ] ; then
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for i in $( grep "^User_Alias ADMIN" /etc/sudoers | cut -d= -f2 | tr -d " " | tr "," "\n" ) ; do
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grep "^trap.*sudo.*evomaintenance.sh" /home/$i /.*profile >/dev/null || echo 'IS_EVOMAINTENANCEUSERS FAILED!'
done
fi
if [ " $IS_APACHEMUNIN " = 1 ] ; then
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test -e /etc/apache2/apache2.conf && ( egrep "^env.url.*/server-status-[0-9]{4}" /etc/munin/plugin-conf.d/munin-node >/dev/null && egrep "/server-status-[0-9]{4}" /etc/apache2/apache2.conf >/dev/null || egrep "/server-status-[0-9]{4}" /etc/apache2/apache2.conf /etc/apache2/mods-enabled/status.conf >/dev/null 2>/dev/null || echo 'IS_APACHEMUNIN FAILED!' )
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fi
# Verification mytop + Munin si MySQL
if [ " $IS_MYSQLUTILS " = 1 ] ; then
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is_installed mysql-server && ( grep mysqladmin /root/.my.cnf >/dev/null && is_installed mytop && grep debian-sys-maint /root/.mytop >/dev/null || echo 'IS_MYSQLUTILS FAILED!' )
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fi
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# Verification de la configuration du raid soft (mdadm)
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if [ " $IS_RAIDSOFT " = 1 ] ; then
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test -e /proc/mdstat && \
( grep "^AUTOCHECK=true" /etc/default/mdadm >/dev/null \
&& grep "^START_DAEMON=true" /etc/default/mdadm >/dev/null \
&& grep -E "^MAILADDR (root|alert3@evolix.fr)" /etc/mdadm/mdadm.conf || echo 'IS_RAIDSOFT FAILED!' )
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fi
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# Verification du LogFormat de AWStats
if [ " $IS_AWSTATSLOGFORMAT " = 1 ] ; then
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is_installed apache2.2-common && ( grep -E '^LogFormat=1' /etc/awstats/awstats.conf.local >/dev/null || echo 'IS_AWSTATSLOGFORMAT FAILED!' )
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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
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# Verification de la configuration d'evomaintenance
if [ " $IS_EVOMAINTENANCECONF " = 1 ] ; then
f = /etc/evomaintenance.cf
( grep " ^HOSTNAME=`hostname` $" $f >/dev/null \
&& grep "^export PGPASSWORD" $f | grep -v "your-passwd" >/dev/null \
&& grep "^EVOMAINTMAIL" $f | grep -v "evomaintenance-your-host@example.com" >/dev/null \
&& grep "^PGDB" $f | grep -v "your-db" >/dev/null \
&& grep "^PGTABLE" $f | grep -v "your-table" >/dev/null \
&& grep "^PGHOST" $f | grep -v "your-pg-host" >/dev/null \
&& grep "^FROM" $f | grep -v "jdoe@example.com" >/dev/null \
&& grep "^FULLFROM" $f | grep -v "John Doe <jdoe@example.com>" > /dev/null \
&& grep "^URGENCYFROM" $f | grep -v "mama.doe@example.com" >/dev/null \
&& grep "^URGENCYTEL" $f | grep -v "06.00.00.00.00" >/dev/null \
&& grep "^REALM" $f | grep -v "example.com" >/dev/null ) || echo 'IS_EVOMAINTENANCECONF FAILED!'
fi
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# Verification de la présence de metche
if [ " $IS_METCHE " = 1 ] ; then
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is_installed metche || echo 'IS_METCHE FAILED!'
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fi
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# Verification de l'activation de Squid dans le cas d'un pack mail
if [ " $IS_SQUID " = 1 ] ; then
f = /etc/firewall.rc
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is_pack_web && ( is_installed squid \
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&& grep -E "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -m owner --uid-owner proxy -j ACCEPT" $f >/dev/null \
&& grep -E "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -d `hostname -i` -j ACCEPT" $f >/dev/null \
&& grep -E "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -d 127.0.0.1 -j ACCEPT" $f >/dev/null \
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&& grep -E "^[^#]*iptables -t nat -A OUTPUT -p tcp --dport 80 -j REDIRECT --to-port `grep http_port /etc/squid/squid.conf |cut -f 2 -d " "`" $f >/dev/null || echo 'IS_SQUID FAILED!' )
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fi
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# Verification de la conf et de l'activation de mod-deflate
if [ " $IS_MODDEFLATE " = 1 ] ; then
f = /etc/apache2/mods-enabled/deflate.conf
test -e $f && grep " AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css application/javascript $" $f >/dev/null || echo 'IS_MODDEFLATE FAILED!'
fi
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# Verification de la conf log2mail
if [ " $IS_LOG2MAILAPACHE " = 1 ] ; then
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is_pack_web && ( is_installed log2mail && grep "^file = /var/log/apache2/error.log" /etc/log2mail/config/default 2>/dev/null >/dev/null || echo 'IS_LOG2MAILAPACHE FAILED!' )
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fi
if [ " $IS_LOG2MAILMYSQL " = 1 ] ; then
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is_pack_web && ( is_installed log2mail && grep "^file = /var/log/syslog" /etc/log2mail/config/default 2>/dev/null >/dev/null || echo 'IS_LOG2MAILMYSQL FAILED!' )
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fi
if [ " $IS_LOG2MAILSQUID " = 1 ] ; then
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is_pack_web && ( is_installed log2mail && grep "^file = /var/log/squid/access.log" /etc/log2mail/config/default 2>/dev/null >/dev/null || echo 'IS_LOG2MAILSQUID FAILED!' )
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fi
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# Verification si bind est chroote
if [ " $IS_BINDCHROOT " = 1 ] ; then
is_installed bind && ( grep -E '^OPTIONS=".*-t"' /etc/default/bind9 >/dev/null && grep -E '^OPTIONS=".*-u"' /etc/default/bind9 >/dev/null || echo 'IS_BINDCHROOT FAILED!' )
fi
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# Verification de la présence du depot volatile
if [ " $IS_REPVOLATILE " = 1 ] ; then
test ` cat /etc/debian_version | cut -d "." -f 1` -ge 5 && ( grep -E "^deb http://volatile.debian.org/debian-volatile" /etc/apt/sources.list >/dev/null || echo 'IS_REPVOLATILE FAILED!' )
fi
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# Verification interface en auto
if [ " $IS_AUTOIF " = 1 ] ; then
for interface in ` /sbin/ifconfig -s | tail -n +2 | grep -v "^lo" | cut -d " " -f 1 | tr "\n" " " ` ; do
grep " ^auto $interface " /etc/network/interfaces >/dev/null || ( echo 'IS_AUTOIF FAILED!' && break )
done
fi
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# Verification du nombre de debian-sys-maint
if [ " $IS_TOOMUCHDEBIANSYSMAINT " = 1 ] ; then
is_installed mysql-server && ( test ` echo "SELECT user FROM mysql.user WHERE user='debian-sys-maint';" | mysql --skip-column-names | wc -l` -eq 1 || echo 'IS_TOOMUCHDEBIANSYSMAINT FAILED!' )
fi