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#/bin/bash
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# $Id: alcasar-dhcp.sh 1484 2014-11-11 23:14:36Z richard $
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# alcasar-dns-interne.sh
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# by Rexy - 3abtux
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# This script is distributed under the Gnu General Public License (GPL)
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# active ou desactive la redirection du service DNS sur le réseau de consultation
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# enable or disable the redirector of internal DNS service on consultation LAN
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SED="/bin/sed -i"
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ALCASAR_CONF_FILE="/usr/local/etc/alcasar.conf"
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DNSMASQ_CONF_FILE="/etc/dnsmasq.conf /etc/dnsmasq-blackhole.conf /etc/dnsmasq-blacklist.sh /etc/dnsmasq-whitelist.conf"
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DNSMASQ_CONF_LOCAL_FILE="/usr/local/etc/alcasar-dns-name"
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# define DNS parameters (LAN side)
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INT_DNS_DOMAIN=`grep INT_DNS_DOMAIN $ALCASAR_CONF_FILE|cut -d"=" -f2` # Nom du domaine DNS interne
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INT_DNS_IP=`grep INT_DNS_IP $ALCASAR_CONF_FILE|cut -d"=" -f2` # Adresse du serveur DNS interne
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INT_DNS_ACTIVE=`grep INT_DNS_ACTIVE $ALCASAR_CONF_FILE|cut -d"=" -f2` # Activation de la redirection DNS interne
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usage="Usage: alcasar-dns-interne.sh {--on | -on} | {--off | -off}"
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nb_args=$#
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args=$1
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if [ $nb_args -eq 0 ]
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then
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echo "$usage"
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exit 1
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fi
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case $args in
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-\? | -h | --h)
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echo "$usage"
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exit 0
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;;
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--off|-off) # disable DNS redirector
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$SED "s?^#filterwin2k.*?filterwin2k?g" $DNSMASQ_CONF_FILE
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$SED "s?^server.*?#&?g" $DNSMASQ_CONF_LOCAL_FILE
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$SED "s?^INT_DNS_ACTIVE.*?INT_DNS_ACTIVE=off?g" $ALCASAR_CONF_FILE
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/usr/bin/systemctl restart dnsmasq
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/usr/bin/systemctl restart dnsmasq-blacklist
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/usr/bin/systemctl restart dnsmasq-blackhole
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/usr/bin/systemctl restart dnsmasq-whitelist
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;;
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--on|-on) # enable DHCP service on all range of IP addresses
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$SED "s?^filterwin2k.*?#filterwin2k?g" $DNSMASQ_CONF_FILE
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$SED "s?^#server=/.*?server=/$INT_DNS_DOMAIN/$INT_DNS_IP?g" $DNSMASQ_CONF_LOCAL_FILE
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$SED "s?^INT_DNS_ACTIVE.*?INT_DNS_ACTIVE=on?g" $ALCASAR_CONF_FILE
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/usr/bin/systemctl restart dnsmasq
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/usr/bin/systemctl restart dnsmasq-blacklist
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/usr/bin/systemctl restart dnsmasq-blackhole
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/usr/bin/systemctl restart dnsmasq-whitelist
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;;
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*)
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echo "Argument inconnu :$1";
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echo "$usage"
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exit 1
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;;
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esac
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