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help: Connection tracking engine options
priority: 218 # before NAT and conntrack-sync are configured
delete: # set conntrack table size to standard 16384 entries if conntrack settings are removed
sudo sysctl -q -w net/nf_conntrack_max=1638
# set conntrack expect table size to standard 2048 entries if conntrack settings are removed
sudo sysctl -q -w net/netfilter/nf_conntrack_expect_max=2048
# 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 effect 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
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