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#!/bin/bash
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# $Id: alcasar-daemon.sh 2620 2018-08-23 22:35:52Z rexy $
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# alcasar-daemon.sh
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# by Franck BOUIJOUX & Rexy
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# This script is distributed under the Gnu General Public License (GPL)
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# Watchdog of Services
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# See /etc/cron.d/alcasar-daemon-watchdog for config the time
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conf_file="/usr/local/etc/alcasar.conf"
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SSH=`grep ^SSH= $conf_file|cut -d"=" -f2`                               # sshd active (on/off)
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SSH=${SSH:=off}
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SMS=`grep ^SMS= $conf_file|cut -d"=" -f2`                               # SMS active (on/off)
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SMS=${SMS:=off}
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LDAP=`grep ^LDAP= $conf_file|cut -d"=" -f2`                             # ldap active (on/off)
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LDAP=${LDAP:=off}
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INTIF=`grep ^INTIF= $conf_file|cut -d"=" -f2`                           # INTIF name
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EXTIF=`grep ^EXTIF= $conf_file|cut -d"=" -f2`                           # EXTIF name
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SERVICES="mysqld lighttpd php-fpm ntpd havp dnsmasq dnsmasq-blacklist dnsmasq-whitelist dnsmasq-blackhole radiusd tinyproxy nfsen e2guardian freshclam ulogd-ssh ulogd-traceability ulogd-ext-access chilli fail2ban sshd vnstat gammu-smsd"
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nb_available_srv=`echo $SERVICES|wc -w`
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function ServiceTest () {
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        service=$1
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        if [ $(/usr/bin/systemctl is-active $service) != "active" ]; then
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                logger -t alcasar-daemon -i "$service is inactive. Activation attempt"
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                echo "the $service service is disabled! trying to start it..."
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                /usr/bin/systemctl start $service.service
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        else
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                nb_srv=$((nb_srv+1))
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        fi
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}
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for NIC in $EXTIF $INTIF
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do
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        if [ `/usr/sbin/ip a show $NIC|grep DOWN|wc -l` -eq "1" ]
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        then
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                echo "The network interface card '$NIC' is down! Try to enable it"
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                /usr/sbin/ifup $NIC
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        fi
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done
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nb_srv=0
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for service in $SERVICES; do
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        if [ $service == 'sshd' ]; then
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                if [ $SSH != "ON" ] && [ $SSH != "on" ] && [ $SSH != "On" ]; then
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                        nb_available_srv=$((nb_available_srv-1))
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                        continue
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                fi
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        elif [ $service == 'gammu-smsd' ]; then
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                if [ $SMS != "ON" ] && [ $SMS != "on" ] && [ $SMS != "On" ]; then
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                        nb_available_srv=$((nb_available_srv-1))
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                        continue
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                fi
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        fi
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        ServiceTest $service
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done
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if [ $nb_available_srv -ne $nb_srv ]
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then
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        echo "Restart this script to know if all is ok"
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else
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        echo "$nb_srv services needed by ALCASAR are started."
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fi
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if [ `lsmod|grep ipt_NETFLOW|wc -l` == 0 ]
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then
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        logger -t alcasar-daemon -i "ipt_netflow is inactive."
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        echo "The Log system is disabled! try to know why (modprobe ipt_NETFLOW)"
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else
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        echo "The Log system is active"
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fi
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if [ ! -e /etc/raddb/mods-enabled/ldap ]
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then
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        if [ $LDAP == "ON" ] || [ $LDAP == "on" ] || [ $LDAP == "On" ]
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        then
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        echo "Enable LDAP..."
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        /usr/local/bin/alcasar-ldap.sh -on
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        fi
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fi
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