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Router URL Blocking

Discussion in 'Networking' started by stevelw, May 8, 2006.

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  1. stevelw

    stevelw Thread Starter

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    Until now I have prevented access to MSN Messenger, Yahoo Messenger and ICQ on my wireless network by blocking access to the Login Server URL for these services. This has been very successful.

    Can anyone tell me if this technique will continue to work on the new MSN 8 Live Messenger? If so, does anyone know the appropriate URLs? If not can anyone suggest another way to block this system from users of my network?

    Thanks
     
  2. jmwills

    jmwills

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    Block outside users?? Filter access by MAC address and use strong encryption. The kiddies won't waste time with your system and will move on to anohter that can be easily hacked.
     
  3. stevelw

    stevelw Thread Starter

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    No that's already done. I am trying to prevent internal Network users from using chat/messenger systems either between themselves or with the outside world
     
  4. jmwills

    jmwills

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    Find out which Ports those programs use and block traffic on those ports.
     
  5. stevelw

    stevelw Thread Starter

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    I understand that Messenger uses dynamic ports - ir if the port it wants is blocked, it finds and uses one that isn't. That is why I have previously achieved what I want by blocking the urls of the login server for the service - this won't change.

    What I am trying to find is the url that is used by the new MSN Live Messenger that corresponds to the "gateway.messenger.hotmail.com" used by the old Messenger system.
     
  6. jmwills

    jmwills

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    Here's a novel concept, just unistall Messenger or download the new one and see which URL it goes to then block it.
     
  7. stevelw

    stevelw Thread Starter

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    That would work fine for a web-based system. Unfortunately messenger is a stand-alone program that uses its own login screen that does not display details of the connections it is trying to make. As my Router does not maintain logs of addresses accessed I am unable see which URL is addressed.

    Having installed the new software to test it, I have at least confirmed that the login does not use the same url as the original system, and that my existing filters will not therefore prevent internal network users from using Messenger
     
  8. Couriant

    Couriant Trusted Advisor

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    prehaps a long way but if you have a network scanner like Ethereal, prehaps you can trace the IP address and then do a DNS lookup on the name. Prehaps you can deny that?
     
  9. Squashman

    Squashman Trusted Advisor

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    Just about any network monitoring software will help you out with this. There are plenty of free ones out there.
     
  10. Couriant

    Couriant Trusted Advisor

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    Ethereal is free... :D
     
  11. stevelw

    stevelw Thread Starter

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    Good idea. I've grabbed Ethereal and I'll give it a go this evening and see if I can get anywhere.

    Thanks guys
     
  12. Couriant

    Couriant Trusted Advisor

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    (y) hope it helps :D
     
  13. jmwills

    jmwills

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    Windows Messenger can be uninstalled thru the Add/Remove Windows Components feature.
     
  14. Couriant

    Couriant Trusted Advisor

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    lol tried that myself, and for some reason it is still there. I get the pop ups like new mail or someone comes online, even though I never started the service, nor the MSN Messenger too.
     
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