Re: Blocking ICQ

[Patrick Oonk <patrick () pine nl>]

On Mon, Nov 15, 1999 at 09:55:13AM -0600, Scot Scot wrote:
> I have users on my network that are using ICQ. This is a security concern, I 
> would like to deny acces using my firewall.
>
> Which ports and/or address should be blocked to disable ICQ?

Icq uses port 4000/udp to connect to the server.

See also http://www.icq.com/firewall/netadmin.html for some
more info.

        p.

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