Ow Mun Heng wrote:

> On Thu, 2005-01-06 at 05:52, Adam Aube wrote:
>> Carlos Simba�a wrote:

>> > 1. I am trying to block msn messenger

>> Could you post all your acl and http_access lines, and detail what
>> station IP address you are testing from? It might be a misconfiguration
>> elsewhere.

> I don't see why you have to use squid to do such things.

> Squid is a proxy. It does not proxy MSN messengers

Squid does not proxy MSN messenger directly. However, most IM applications
(MSN included) support tunneling their protocol over HTTP. So even if the
OP blocks the MSN messenger ports at the firewall, users can still
configure MSN messenger to tunnel the protocol through Squid.

Adam

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