Re: [fw-wiz] blocking hotmail and microsoft messenger traffic

From: John Keeton (jkeeton_at_nettoxin.net)
Date: 07/31/03

  • Next message: Gary Flynn: "Re: [fw-wiz] OT: Av and Gartner..." 
    To: 'Richard Worwood' <richardw@tdbnetworks.com>, firewall-wizards@honor.icsalabs.com
Date: Thu, 31 Jul 2003 06:46:43 -0500

    > I'm having a bit of a nightmare at the moment trying to block
    > these two applications with a pix, does anyone know how I can do
    > it?

    Here is how I have been blocking it with a little help from my proxy
    vendor.

    kill *.msgr.hotmail.com
    kill *.messenger.hotmail.com
    kill svcs.microsoft.com/svcs/mms
    kill with http header content type of "x-msn-messenger"

    It has been effective for me. Not all firewalls will be able to look into
    layer 7 to check the headers though.

    Thanks,
    -jkeeton

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