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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