[ngIRCd-ML] can't connect from other than localhost

I just installed ngirc for the first time. Currently, I can connect to ngirc from localhost; however, from other machines I cannot connect. It tried troubleshooting with netcat and wireshark a bit. When I connect with netcat to port 6667 from another machine, my connection ins't refused, but I don't seem to be getting any kind of response back from the server either. Not even an ACK. Any suggestions? I'm wondering if there's some switch I have to flip to get it to talk to something other than localhost. Thanks