RE: How to block MSN file transfer
From: Julio E. Danoviz (anonymous_at_discussions.microsoft.com)
Date: 04/28/04
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Date: Wed, 28 Apr 2004 08:29:15 -0700
Thanks Tom for responding.
That article doesn't apply for MSN Messenger version 6 or
greater!
ISA server has those ports blocked by default and you had
to open them if you wanted Messenger file transfers (only
for earlier versions prior to 6.0).
Apparently Messenger is now using secondary connections
over port 80 to make file transfers. And many customers
want to disable this functionality...
Thanks,
Julio E. Danoviz, MCSA+Messaging MCSE MCT
Buenos Aires, Argentina
>-----Original Message-----
>Hi Julio,
>
>MSN messenger uses specific ports for the file transfers,
so blocking these
>ports should disable the file transfer facilities. The
port numbers are
>listed in the article below;
>
>278887 MSN Messenger Service Cannot Perform File
Transfers or Make Voice
>http://support.microsoft.com/?id=278887
>
>Thanks,
>
>Tom
>
>Tom Sampson
>Microsoft ISA Support
>
>This posting is provided "AS IS" with no warranties, and
confers no rights.
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