templates/firewall/node.def


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priority: 199
help: Firewall

delete: # set conntrack table size to standard 16384 entries if fw disabled
        sudo sh -c "echo 16384 > /proc/sys/net/nf_conntrack_max"

        # set conntrack expect table size to standard 2048 entries if fw disabled
        sudo sh -c "echo 2048 > /proc/sys/net/netfilter/nf_conntrack_expect_max"

	# set conntrack hash size to standard 4096
        if ! grep -q "nf_conntrack hashsize=4096$" /etc/modprobe.d/vyatta_nf_conntrack.conf
        then
          sudo sh -c "sed -i -e '/options nf_conntrack hashsize/d' \
                /etc/modprobe.d/vyatta_nf_conntrack.conf"
          sudo sh -c "echo options nf_conntrack hashsize=4096 >> \
                /etc/modprobe.d/vyatta_nf_conntrack.conf"
          echo "Conntrack hash size set to default 4096. This change will take affect when the system is rebooted."
        fi

        # need to restart conntrackd with updated conntrack table size
        if cli-shell-api existsActive service conntrack-sync; then
          sudo /opt/vyatta/sbin/vyatta-conntrack-sync.pl --action=enable
        fi