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#!/bin/sh
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#!/bin/sh
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# $Id: alcasar-iptables-local.sh 1627 2015-05-13 20:10:14Z franck $
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# $Id: alcasar-iptables-local.sh 1829 2016-04-19 22:14:42Z richard $
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# script de mise en place des regles personnalisées du parefeu d'Alcasar 
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# script de mise en place des regles personnalisées du parefeu d'Alcasar 
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# Rexy - 3abtux - CPN
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# Rexy - 3abtux - CPN
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# version 2.1 (12/2014)
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# version 2.2 (04/2016)
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# changelog :
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# changelog :
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#	+ autorisation de l'ICMP vers EXTIF
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#	+ example to allow ICMP from an Internet IP address (Admin_from) to EXTIF
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#	+ autorisation SMTP vers serveur extérieur (SMTP_IP)
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#	+ exemple to allow SMTP from aLCASAR to an Internet server (SMTP_IP)
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#	+ autorisation PAT depuis l'extérieur
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#	+ exemple of PAT rules from Internet
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# List of MAC filtered in /usr/local/etc/alcasar-iptables-local-filtered     ; format :  aa:09:23:2f:4d:ee
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# 	+ List of local MAC addresses filtered (MAC are in '/usr/local/etc/alcasar-iptables-local-mac-filtered'. Format : aa:09:23:2f:4d:ee)
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CONF_FILE="/usr/local/etc/alcasar.conf"
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EXTIF=`grep ^EXTIF= $CONF_FILE|cut -d"=" -f2`				# EXTernal InterFace
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INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`				# INTernal InterFace
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# this script inherit of alcasar-iptables.sh variables : $INTIF, $EXTIF, $IPTABLES, etc
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# filtrage particulier ciblés 
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# Local MAC addresses filtering 
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if [ -s /usr/local/etc/alcasar-iptables-local-filtered ]; then
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if [ -s /usr/local/etc/alcasar-iptables-local-mac-filtered ]; then
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	  while read mac_line
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	  while read mac_line
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	  do
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	  do
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		  ip_on=`echo $mac_line|cut -b1`
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		  ip_on=`echo $mac_line|cut -b1`
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		  if [ $ip_on != "#" ]
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		  if [ $ip_on != "#" ]
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		  then
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		  then
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			  $IPTABLES -A FORWARD -i $INTIF -m mac --mac-source $mac_filtered -j ULOG --ulog-prefix "$mac_filtered -- Filt_DROP"
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			  $IPTABLES -A FORWARD -i $INTIF -m mac --mac-source $mac_filtered -j ULOG --ulog-prefix "$mac_filtered -- Filt_DROP"
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			  $IPTABLES -A FORWARD -i $INTIF -p tcp -m mac --mac-source $mac_filtered -j DROP
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			  $IPTABLES -A FORWARD -i $INTIF -p tcp -m mac --mac-source $mac_filtered -j DROP
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			  $IPTABLES -A FORWARD -i $INTIF -p udp -m mac --mac-source $mac_filtered -j DROP
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			  $IPTABLES -A FORWARD -i $INTIF -p udp -m mac --mac-source $mac_filtered -j DROP
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			  $IPTABLES -A FORWARD -i $INTIF  -m mac --mac-source $mac_filtered -j DROP
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			  $IPTABLES -A FORWARD -i $INTIF  -m mac --mac-source $mac_filtered -j DROP
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		  fi
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		  fi
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	  done < /usr/local/etc/alcasar-iptables-local-filtered
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	  done < /usr/local/etc/alcasar-iptables-local-mac-filtered
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fi
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fi
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# On autorise le ping (echo & request) (icmp N°0 & 8) en provenance de l'extérieur vers ALCASAR
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# On autorise le ping (echo & request) (icmp N°0 & 8) en provenance de l'extérieur vers ALCASAR
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# ping (echo & request) (icmp N°0 & 8) is allowed on EXTIF
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# ping (echo & request) (icmp N°0 & 8) is allowed on EXTIF
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#$IPTABLES -A INPUT -i $EXTIF -s $Admin_from_IP -p icmp --icmp-type 8 -j ACCEPT
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#$IPTABLES -A INPUT -i $EXTIF -s $Admin_from_IP -p icmp --icmp-type 8 -j ACCEPT