Check out the LDP for IPCHAINS, the URL is
http://www.linuxdoc.org/HOWTO/IPCHAINS-HOWTO.html
I found lists of IRC ports that you can block.
[CISCO]
! deny's IRC by filtering packets on IRC ports.
deny tcp any any eq 6661
deny tcp any any eq 6662
deny tcp any any eq 6663
deny tcp any any eq 6664
deny tcp any any eq 6665
deny tcp any any eq 6666
deny tcp any any eq 6667
deny tcp any any eq 6668
deny tcp any any eq 6669
deny tcp any any eq 6670
deny tcp any any eq 7000
deny tcp any any eq 124
deny tcp any any eq 529
deny tcp any any eq 6671
deny tcp any any eq 6673
deny tcp any any eq 6675
! end deny IRC
This command is from cisco though but it might help you !
Hopes this helps !
-----Original Message-----
From: Victor Michael Blancas [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, April 10, 2001 3:03 AM
To: [EMAIL PROTECTED]
Subject: [plug] ipchains
I have a linux router/firewall/gateway. Anybody know how to block MIRC
and other ports using ipchains. I was able to block the port for other
linux machines using the box as server. But for windows machine using the
box as gateway, they still can connect to IRC. I did a netstat and ip of
the windows machine is not registering. I also did a portscan on the
windows machine and only netbios is open. Anybody have an idea on how to
do it on windows boxes.
--
Mike
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