abo sager Posted February 17, 2006 Share Posted February 17, 2006 Hello everyone,I have a course about information security and we were given an assingment. One of the question is asking about the technidues that were used to allow MSN Messenger to work behind a firewall. Do u know them?Please help me..thanks Link to comment Share on other sites More sharing options...
jondercik Posted February 17, 2006 Share Posted February 17, 2006 Its depends alot on the firewall. The easiest way is just to NAT all traffic going out, and BAM messenger. Link to comment Share on other sites More sharing options...
bledd Posted February 17, 2006 Share Posted February 17, 2006 maybe it uses port 80? the same port as http.. Link to comment Share on other sites More sharing options...
mike1210 Posted February 17, 2006 Share Posted February 17, 2006 the main defaultport is TCP 1863 destination port.But it can tunnell through other ports being 443 (HTTPS) and 80 (HTTP).Best way to block it is to watch all domain lookups. File sharring and the like use many other ports as well Link to comment Share on other sites More sharing options...
abo sager Posted February 17, 2006 Author Share Posted February 17, 2006 Thank you all for your help Link to comment Share on other sites More sharing options...
oofki Posted February 17, 2006 Share Posted February 17, 2006 Ports 6891-6900 enable File send, Port 6901 is for voice communications. Link to comment Share on other sites More sharing options...
Gouki Posted February 17, 2006 Share Posted February 17, 2006 netstat -oSee wich ports it uses. (you can also google it. the first results gives you all the ports used)Open those same ports, if closed, on the Firewall. Link to comment Share on other sites More sharing options...
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