Re: [fw-wiz] Blocking IRC ....
From: Don Parker (dparker_at_rigelksecurity.com)
Date: 01/19/04
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To: Vishwanath V <thelinuxguyis@yahoo.co.in>, firewall-wizards@honor.icsalabs.com Date: Sun, 18 Jan 2004 21:21:08 -0500 (EST)
Hello there, have you considered simply writing a rule which drops all packets from the
well known irc server ports such as 6666-7000? As well assuming you have control you may
simply want to lock down your users into using a company approved software baseline.
Doing this will also disallow them installing any programs as well unless they are
administrator.
Cheers!
-------------------------------------------
Don Parker, GCIA
Intrusion Detection Specialist
Rigel Kent Security & Advisory Services Inc
www.rigelksecurity.com
ph :613.249.8340
fax:613.249.8319
--------------------------------------------
On Jan 14, =?iso-8859-1?q?Vishwanath=20V?= <thelinuxguyis@yahoo.co.in> wrote:
Hi guys,
I just joined the list.
I need some help wrt iptables.
I have a linux gateway machine acting as a
IP_masq/firewall.
My policy is a basic deny all.
I wana block machnies on my LAN from using irc
client.
Thanks in advance.
Visu
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