Re: Blocking ICQ

["Mikhail Evstiounin" <evstiounin () adelphia net>]

Not exactly. Once I was able to install and configure ICQ on my NT box
behind firewall and this firewall has only ports 53 and 80 opened ( well a
little bit more - about another 10 or more well known ports). I used second
configuration in ICQ.
-----Original Message-----
From: Jon Ponsford <jponsford () earthlink net>
To: firewall-wizards () lists nfr net <firewall-wizards () lists nfr net>
Date: Wednesday, November 17, 1999 1:49 PM
Subject: Re: Blocking ICQ


> TCP and UDP ports 4000 are the ICQ ports. Blocking any traffic over port
> 4000 will effectively kill any ICQ traffic, cuz the client needs port 4000
> to connect to the server to start up.
>
>
> At 09:55 AM 11/15/1999 CST, you 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?
> >
> > -TIA
> >
> > Scoter
> >
> > "Its all about the Pentium"   -Wierd AL
> >
> > ______________________________________________________
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