Firewall fiasco

Issue

"oidentd" won't authenticate a proper mask without opening port 113 on whatever firewall application you're using to manage connections. This is especially present if you use ZNC and you desire to allow such identification authentication.

Solution

Open up port 113 through your firewall. Here's an example with IPTables:

iptables -t filter -I INPUT -p 113 -j ACCEPT
iptables -t filter -I OUTPUT -p 113 -j ACCEPT

Good luck!