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Block MSN Messenger RRS feed

  • Question

  • I need to block computers at an office from accessing MSN Messenger. There is no server nor domain in the office therefore I need to block at the router. What domain and ports should I block to accomplish this goal?
    Microsoft Partner
    Friday, August 13, 2010 4:23 PM

Answers

  • WatchGuard do a series of products that are hardware based and get good write ups (I'm certain there are others too). They can block the IM software at application level and "learn' when the IM software attempts to use port 80 to bypass proxies and firewalls.

    http://www.watchguard.com/products/edge-e/overview.asp

    Barry

    • Marked as answer by Kevin Remde Thursday, August 19, 2010 2:57 AM
    Wednesday, August 18, 2010 2:21 PM

All replies

  • Sunday, August 15, 2010 5:48 AM
  • Be careful though, Rashidjb.  Just closing off ports without knowing what else they might be used for could cause unexpected results.  For example, blocking 80 and/or 443 will block your users from any kind of web (http or https) browsing. 

     Does anyone else have a good recommendation?  I know there are firewall / gateway products out there that can do the kind of inspection and blocking that is being asked for.


    Kevin Remde US IT Evangelism - Microsoft Corporation http://blogs.technet.com/kevinremde
    Wednesday, August 18, 2010 2:02 AM
  • If there aren't too many computers you could do the follwoing registry edit on each one......

    1. In the registry, navigate to: \HKUR\Software\Microsoft\MessengerService\

    2. Find the item named Server: messenger.hotmail.com;64.4.13.50:1863. Change this value to Null;0.0.0.0:0

    But a solution on your router would very much depend on its capabilities and if it has an integrated firewall etc. Hope that helps. Barry

    Wednesday, August 18, 2010 7:46 AM
  • Oh you could see if you're Router will block the following address too?

    gateway.messenger.hotmail.com

    Regards, Barry

    Wednesday, August 18, 2010 7:57 AM
  • The above URL does not work nor any other URL I have tried.

    I think we need a hardware solution to block this in the environment. Does anyone have any recommendations?


    Microsoft Partner
    Wednesday, August 18, 2010 2:01 PM
  • WatchGuard do a series of products that are hardware based and get good write ups (I'm certain there are others too). They can block the IM software at application level and "learn' when the IM software attempts to use port 80 to bypass proxies and firewalls.

    http://www.watchguard.com/products/edge-e/overview.asp

    Barry

    • Marked as answer by Kevin Remde Thursday, August 19, 2010 2:57 AM
    Wednesday, August 18, 2010 2:21 PM