Re: Blocking MSN Messanger ports

[Noah K Sematimba <ksemat at africaonline.co.ug>]

That is about as hard as trying to block napster and Kazaa. They keep
changing ports. You may hvae no choice but to block the high ports and
probably use stateful filtering in order not to block dns and ftp-data
connections.

Sematimba Noah Kevin
Systems Administrator
Africa Online Uganda Limited
Commercial Plaza Kampala Road
e-mail: ksemat at africaonline.co.ug
WEB: http://www.africaonline.co.ug
TEL: +256(41)258143
FAX: +256(41)258144

On 17 Sep 2002, Patrick J Okui wrote:

> Hi all,
> 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?
>
> Patrick.
> --
> Patrick J Okui
> Systems Administrator
> One2Net (U) Ltd
>
>
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