Re: Blocking MSN Messanger ports

[Patrick J Okui <pokui at one2net.co.ug>]

On Wed, 2002-09-18 at 09:19, fingers wrote:
> Hi
> 
> > The (usual) port for MSN is listed as 1863 (tcp). I need to block the
> > Messenger using a un*x firewall, so I blocked that port. This takes care
> > of the linux MSN clients like everybuddy, but the windows client seems
> > to hop to the next available high port. I do not want to block high
> > ports.... and yet I need to get the chat clients blocked. Is there any
> > way I can do this?
> 
> gw#sh ip inspect sessions | include 1863
>  Session 237F2E0 (196.7.x.x:1029)=>(64.4.13.147:1863) tcp SIS_OPEN
> 
> if I kill 1863, my msn dies. you sure it moves to the next available port?
> are they using the standard msn or another client that can speak to msn
> servers?

They are using the latest MSWINDOWS msn client...blocking port 1863
kills other msn clients like everybuddy (like I said) but for some
reason, the winbloze msn client still connects... The only difference is
that it's somewhat slower.

Patrick.
> 
> Regards
> 
> --Rob
> 
> 
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-- 
Patrick J Okui
Systems Administrator
One2Net (U) Ltd


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