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How To Block Windows Live Messenger


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#1 Kenworth

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Posted 19 July 2007 - 07:28 PM

Hey guys, n00b here. I was wondering if anyone knew how to block WLM on a network. I've already went thru and blocked a bunch of ports and you can still sign in. Am I missing something?

Thanks

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#2 Animal

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Posted 19 July 2007 - 11:37 PM

With just a bit of effort I was able to collect the following bits of information:
It appears that Windows Live Messenger uses the following listed ports:

Messenger Server: ports 1493, 1542, 1863, 1963, 80 TCP and 443 TCP
File Transfer/Sharing Folders: local: 1544 and 6891 - possibly 6720-65535 TCP according to one source
Messenger Update: remote: 80 local: 1457
Remote Assistance (If Enabled): 3389 TCP
Audio: local: 1556, 11771, 13803 and generally 5004-65535 UDP
Remote Desktop and Whiteboard: local/remote: 389, 522, 1503, 1720 and 1731
Launch Games: 80
Video Conference: TCP 9000-9999, 5004-65535 UDP & 80
Sign-In: remote: 443 local: 1484, 2400

I have not tried any of this information and it is unverified by me. But it was information I collected from known reliable sources.

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#3 oldf@rt

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Posted 20 July 2007 - 01:52 AM

The best thing to do is uninstall wlm, and them remove the abusing users software install rights, that is if you are running XP Pro on a domain. You could also see if it is listed in services and disable it there.
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#4 Kenworth

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Posted 20 July 2007 - 08:12 AM

Could someone explain to me what remote and local is? And port 80 is for the internet correct?




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