Open Port - Linux Firewall - IPtables
I would like to open port 3784 in my Linux Firewall which is used by a VoIP program ( Ventrilo ). The little I surmise so far is that I have to make a new entry in IPtables to allow this. My first guess is:
iptables -A INPUT -p tcp --source-port 3784 --destination-port 3784 -j ACCEPT
I can't seem to find what the -j parameter does but all the tcp examples I've found have it. Any help would be appreciated.