Opening ports to outside world on linux machine

Hi,

If you want to open ports of linux machine to outside world through command line (It can be done through UI too) then follow the below steps:

Goto /etc/init.d/iptables

Add entry like: (this is for port 6667)

iptables -I INPUT -p tcp -m tcp --dport 6667 -j ACCEPT

Then restart iptables so that changes made gets effective

/etc/init.d/iptables restart

Thanks,

Anand