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#!/bin/bash
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#!/bin/bash
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#  $Id: alcasar.sh 2552 2018-05-08 22:21:47Z rexy $
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#  $Id: alcasar.sh 2558 2018-06-05 21:56:34Z rexy $
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# alcasar.sh
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# alcasar.sh
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# ALCASAR is a Free and open source NAC created by Franck BOUIJOUX (3abtux), Pascal LEVANT and Richard REY (Rexy)
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# ALCASAR is a Free and open source NAC created by Franck BOUIJOUX (3abtux), Pascal LEVANT and Richard REY (Rexy)
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# This script is distributed under the Gnu General Public License (GPL)
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# This script is distributed under the Gnu General Public License (GPL)
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#  team@alcasar.net
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#  team@alcasar.net
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EOF
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EOF
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# write "/etc/hosts"
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# write "/etc/hosts"
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        [ -e /etc/hosts.default ] || cp /etc/hosts /etc/hosts.default
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        [ -e /etc/hosts.default ] || cp /etc/hosts /etc/hosts.default
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        cat <<EOF > /etc/hosts
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        cat <<EOF > /etc/hosts
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127.0.0.1       localhost
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127.0.0.1       localhost
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$PRIVATE_IP     $HOSTNAME.$DOMAIN $HOSTNAME
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$PRIVATE_IP     $HOSTNAME
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EOF
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EOF
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# write EXTIF (Internet) config
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# write EXTIF (Internet) config
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        [ -e /etc/sysconfig/network-scripts/default-ifcfg-$EXTIF ] || cp /etc/sysconfig/network-scripts/ifcfg-$EXTIF /etc/sysconfig/network-scripts/default-ifcfg-$EXTIF
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        [ -e /etc/sysconfig/network-scripts/default-ifcfg-$EXTIF ] || cp /etc/sysconfig/network-scripts/ifcfg-$EXTIF /etc/sysconfig/network-scripts/default-ifcfg-$EXTIF
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        if [ $IP_SETTING == "dhcp" ]
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        if [ $IP_SETTING == "dhcp" ]
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                then
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                then
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        $SED "s?\$iface_list =.*?\$iface_list = array('$EXTIF');?" $DIR_ACC/manager/stats/config.php
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        $SED "s?\$iface_list =.*?\$iface_list = array('$EXTIF');?" $DIR_ACC/manager/stats/config.php
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        $SED "s?\$iface_title\['.*?\$iface_title\['$EXTIF'\] = \$title;?" $DIR_ACC/manager/stats/config.php
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        $SED "s?\$iface_title\['.*?\$iface_title\['$EXTIF'\] = \$title;?" $DIR_ACC/manager/stats/config.php
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        /usr/bin/vnstat -u -i $EXTIF
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        /usr/bin/vnstat -u -i $EXTIF
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} # End of vnstat
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} # End of vnstat
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################################################################
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##################################################################
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##                     Function "dnsmasq"                     ##
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##                     Function "dnsmasq"                       ##
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## - creation of the conf files of the 4 intances of dnsmasq  ## 
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## - creation of the conf files of the 4 intances of dnsmasq    ##
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## - creation of the file managing domain name (local & remote) ##
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################################################################
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##################################################################
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dnsmasq ()
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dnsmasq ()
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{
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{
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        [ -d /var/log/dnsmasq ] || mkdir /var/log/dnsmasq
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        [ -d /var/log/dnsmasq ] || mkdir /var/log/dnsmasq
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# 1st dnsmasq listen on udp 53 ("dnsmasq - forward"). It's used as dhcp server only if "alcasar-bypass" is on.
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# 1st dnsmasq listen on udp 53 ("dnsmasq - forward"). It's used as dhcp server only if "alcasar-bypass" is on.
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        [ -e /etc/dnsmasq.conf.default ] || cp /etc/dnsmasq.conf /etc/dnsmasq.conf.default
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        [ -e /etc/dnsmasq.conf.default ] || cp /etc/dnsmasq.conf /etc/dnsmasq.conf.default
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        cat << EOF > /etc/dnsmasq.conf
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        cat << EOF > /etc/dnsmasq.conf
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# Configuration file for "dnsmasq in forward mode"
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# Configuration file for "dnsmasq in forward mode"
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local DNS resolutions
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local & remote DNS domain name resolutions
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listen-address=$PRIVATE_IP
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listen-address=$PRIVATE_IP
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pid-file=/var/run/dnsmasq.pid
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pid-file=/var/run/dnsmasq.pid
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listen-address=127.0.0.1
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listen-address=127.0.0.1
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no-dhcp-interface=$INTIF
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no-dhcp-interface=$INTIF
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no-dhcp-interface=tun0
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no-dhcp-interface=tun0
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server=$DNS2
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server=$DNS2
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# DHCP service is configured. It will be enabled in "bypass" mode
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# DHCP service is configured. It will be enabled in "bypass" mode
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#dhcp-range=$PRIVATE_FIRST_IP,$PRIVATE_LAST_IP,$PRIVATE_NETMASK,12h
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#dhcp-range=$PRIVATE_FIRST_IP,$PRIVATE_LAST_IP,$PRIVATE_NETMASK,12h
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#dhcp-option=option:router,$PRIVATE_IP
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#dhcp-option=option:router,$PRIVATE_IP
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#dhcp-option=option:ntp-server,$PRIVATE_IP
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#dhcp-option=option:ntp-server,$PRIVATE_IP
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#domain=$DOMAIN
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# Exemple of static dhcp assignation : <@MAC>,<name>,<@IP>,<MASK>,<ttl bail>
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# Exemple of static dhcp assignation : <@MAC>,<name>,<@IP>,<MASK>,<ttl bail>
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#dhcp-host=11:22:33:44:55:66,ssic-test,192.168.182.20,255.255.255.0,45m
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#dhcp-host=11:22:33:44:55:66,ssic-test,192.168.182.20,255.255.255.0,45m
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EOF
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EOF
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# 2nd dnsmasq listen on udp 54 ("dnsmasq with blacklist")
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# 2nd dnsmasq listen on udp 54 ("dnsmasq with blacklist")
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        cat << EOF > /etc/dnsmasq-blacklist.conf
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        cat << EOF > /etc/dnsmasq-blacklist.conf
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# Configuration file for "dnsmasq with blacklist"
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# Configuration file for "dnsmasq with blacklist"
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# Add Toulouse University blacklist domains
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# Add Toulouse University blacklist domains
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local DNS resolutions
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local & remote DNS domain name resolutions
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conf-dir=$DIR_DEST_SHARE/dnsmasq-bl-enabled
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conf-dir=$DIR_DEST_SHARE/dnsmasq-bl-enabled
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pid-file=/var/run/dnsmasq-blacklist.pid
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pid-file=/var/run/dnsmasq-blacklist.pid
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listen-address=$PRIVATE_IP
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listen-address=$PRIVATE_IP
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port=54
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port=54
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no-dhcp-interface=$INTIF
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no-dhcp-interface=$INTIF
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EOF
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EOF
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# 3rd dnsmasq listen on udp 55 ("dnsmasq with whitelist")
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# 3rd dnsmasq listen on udp 55 ("dnsmasq with whitelist")
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        cat << EOF > /etc/dnsmasq-whitelist.conf
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        cat << EOF > /etc/dnsmasq-whitelist.conf
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# Configuration file for "dnsmasq with whitelist"
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# Configuration file for "dnsmasq with whitelist"
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# ADD Toulouse university whitelist domains
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# ADD Toulouse university whitelist domains
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local DNS resolutions
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local & remote DNS domain name resolutions
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conf-dir=$DIR_DEST_SHARE/dnsmasq-wl-enabled
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conf-dir=$DIR_DEST_SHARE/dnsmasq-wl-enabled
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pid-file=/var/run/dnsmasq-whitelist.pid
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pid-file=/var/run/dnsmasq-whitelist.pid
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listen-address=$PRIVATE_IP
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listen-address=$PRIVATE_IP
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port=55
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port=55
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no-dhcp-interface=$INTIF
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no-dhcp-interface=$INTIF
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address=/#/$PRIVATE_IP                          # for Domain name without local resolution (WL)
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address=/#/$PRIVATE_IP                          # for Domain name without local resolution (WL)
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EOF
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EOF
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# 4th dnsmasq listen on udp 56 ("blackhole")
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# 4th dnsmasq listen on udp 56 ("blackhole")
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        cat << EOF > /etc/dnsmasq-blackhole.conf
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        cat << EOF > /etc/dnsmasq-blackhole.conf
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# Configuration file for "dnsmasq as a blackhole"
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# Configuration file for "dnsmasq as a blackhole"
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local DNS resolutions
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conf-file=$DIR_DEST_ETC/alcasar-dns-name        # local & remote DNS domain name resolutions
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address=/#/$PRIVATE_IP                          # redirect all on ALCASAR IP address
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address=/#/$PRIVATE_IP                          # redirect all on ALCASAR IP address
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pid-file=/var/run/dnsmasq-blackhole.pid
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pid-file=/var/run/dnsmasq-blackhole.pid
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listen-address=$PRIVATE_IP
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listen-address=$PRIVATE_IP
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port=56
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port=56
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no-dhcp-interface=$INTIF
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no-dhcp-interface=$INTIF
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cache-size=256
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cache-size=256
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domain-needed
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domain-needed
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expand-hosts
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expand-hosts
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bogus-priv
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bogus-priv
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filterwin2k
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filterwin2k
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EOF
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# file managing domain name resolution (local & remote)
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cat << EOF > $DIR_DEST_ETC/alcasar-dns-name
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# Vous pouvez définir ici votre nom de domain local ('localdomain' par défaut)
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# Here you can define your local domain name ('localdomain' by default)
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local=/$DOMAIN/
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domain=$DOMAIN
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## Ajouter une ligne pour chaque nom de domaine géré par un autre seveur DNS
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## Add one line for each domain name managed by an other DNS server
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## server=/<your_domain>/<@IP_domain_server>
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## Exemple for an A.D. domain :  server=/Your.Domain.AD/110.120.100.100
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## Exemple for an other domain : server=/an_other_domain/10.20.30.40
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## INFO : local hostnames are resolved in /etc/hosts file
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EOF
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EOF
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# the main instance should start after network and chilli (which create tun0)
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# the main instance should start after network and chilli (which create tun0)
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        [ -e /lib/systemd/system/dnsmasq.service.default ] || cp -f /lib/systemd/system/dnsmasq.service /lib/systemd/system/dnsmasq.service.default
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        [ -e /lib/systemd/system/dnsmasq.service.default ] || cp -f /lib/systemd/system/dnsmasq.service /lib/systemd/system/dnsmasq.service.default
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        $SED "s?^After=.*?After=syslog.target network-online.target chilli.service?g" /lib/systemd/system/dnsmasq.service
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        $SED "s?^After=.*?After=syslog.target network-online.target chilli.service?g" /lib/systemd/system/dnsmasq.service