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#/bin/sh
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# $Id: alcasar-nf.sh 520 2011-03-27 20:55:05Z richard $
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# active ou desactive le filtrage de protocoles réseau
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# enable or disable the network protocols filter
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# by rexy
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SED="/bin/sed -i"
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FIC_SERVICES="/usr/local/etc/alcasar-services"
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FIC_EXCEPTIONS="/usr/local/etc/alcasar-filter-exceptions"
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usage="Usage: alcasar-nf.sh {--on or -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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	nb_args=1
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	args="-h"
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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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	-on|-on)
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		# activation du filtrage réseau
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		$SED "s?^PROTO_FILTERING.*?PROTO_FILTERING=\"yes\"?g" /usr/local/bin/alcasar-iptables.sh
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		# tri du fichier de services
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		$SED "/^$/d" $FIC_SERVICES # suppression lignes vides
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		sort -k2n $FIC_SERVICES > /tmp/alcasar-services-sort
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		mv -f /tmp/alcasar-services-sort $FIC_SERVICES
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		chown root:apache $FIC_SERVICES
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		chmod 660 $FIC_SERVICES
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		# vérification de présence du fichier d'exception
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		[ -e $FIC_EXCEPTIONS ] || touch $FIC_EXCEPTIONS
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		chown root:apache $FIC_EXCEPTIONS
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		chmod 664 $FIC_EXCEPTIONS
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		/usr/local/bin/alcasar-iptables.sh
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		;;
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	--off|-off)
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		# désactivation du filtrage réseau
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		$SED "s?^PROTO_FILTERING.*?PROTO_FILTERING=\"no\"?g" /usr/local/bin/alcasar-iptables.sh
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		/usr/local/bin/alcasar-iptables.sh
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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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