ICQ file transfers

ICQ file transfers

[Leonardo Rodrigues Magalhães]

    Hello Guys,

    I have two LANs interconnected with FreeSWAN IPSec tunnel. It's working
fine. Gateway in both sides is a linux box running iptables. We're running
ICQ Groupware Server and ICQ Groupware clients for instant messages.

    I need, somehow, block ICQ File transfers, but I cannot block ICQ
messages. ICQ Client does not allow this kind of config. I was thinking on
some string match to block the initial ICQ File transfer request. Question
is: do anybody here has the string I'm looking for ? Has anyone experienced
a similar problem ?

    Sincerily,
    Leonardo Rodrigues

RE: ICQ file transfers

[George Vieira]

Block everything and allow only port 5190/4000 (don't know if groupware is the same ports or not)..
Obviously if your allowing everything then expect more problems when people use IRC or Direct Connect to send to others..

Thanks,
____________________________________________
George Vieira
Systems Manager
georgev@citadelcomputer.com.au

Citadel Computer Systems Pty Ltd
http://www.citadelcomputer.com.au

Phone   : +61 2 9955 2644
HelpDesk: +61 2 9955 2698
 

-----Original Message-----
From: Leonardo Rodrigues Magalhães [mailto:leolistas@solucoesip.net]
Sent: Friday, August 08, 2003 7:59 AM
To: netfilter ML
Subject: ICQ file transfers



    Hello Guys,

    I have two LANs interconnected with FreeSWAN IPSec tunnel. It's working
fine. Gateway in both sides is a linux box running iptables. We're running
ICQ Groupware Server and ICQ Groupware clients for instant messages.

    I need, somehow, block ICQ File transfers, but I cannot block ICQ
messages. ICQ Client does not allow this kind of config. I was thinking on
some string match to block the initial ICQ File transfer request. Question
is: do anybody here has the string I'm looking for ? Has anyone experienced
a similar problem ?

    Sincerily,
    Leonardo Rodrigues