zulip/puppet/zulip_ops/files/iptables/zmirror.v4

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# Accept incoming traffic on UDP port 2104 (zhm)
-A INPUT -p udp --dport 2104 -j ACCEPT
# It's hard to know what ephemeral ports the zephyr clients are listening on.
# Apparently they do not send outgoing traffic sufficient for the
# ESTABLISHED,RELATED rule above. So for now we allow all UDP traffic.
#
# FIXME: do something better here.
-A INPUT -p udp -j ACCEPT