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Old 11-09-2004, 10:47 AM   #1
gsr_kashyap
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Registered: Jul 2004
Location: india
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Question block yahoo messenger by ip address


can any one tell me how to block yahoo messnger by ip address. i use redhat 7.1 linux as proxy.
 
Old 11-09-2004, 11:43 AM   #2
Lleb_KCir
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dont think you can by IP, but you should by port. that is if you want to completly stop Y! from accessing your LAN.

here this URL should give you some help:

http://help.yahoo.com/help/us/mesg/use/use-17.html

looks like you can block it by port 5050 or via the URLs of:

cs1.yahoo.com, cs2.yahoo.com, and cs3.yahoo.com.

Quote:
If you are trying to connect from behind a firewall that doesn't use proxy servers, Yahoo! Messenger will automatically search the firewall for an open port, and, if it finds one, use that to connect. If Messenger is unable to find an open port, ask your System Administrator to open port 5050 to our Messenger servers, cs1.yahoo.com, cs2.yahoo.com, and cs3.yahoo.com.
so if you can open up a path that way, then you can block the path that way too.
 
Old 11-09-2004, 11:44 AM   #3
Caeda
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Registered: Jul 2003
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Distribution: Suse 6.0+, Mandrake 5.0-10.0, Redhat 6.0-9.0, Gentoo 1.2+, Gnoppix, Knoppix, Sabayon, Ubuntu 5.04+
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Well, you can either hunt down every ip address for every yahoo server in every part of every country of the world... Plus, hunt down the ip address of every proxy, gateway, and redirecting service on the planet and add them to your blocked list....

Or you can forget about it because you'll never find all the ip's to block. Thus, your not blocking it using an ip address block. Since it can be configured to use multiple ports and connection types as well... not completely likely you'll get it blocked at all.
 
Old 11-10-2004, 01:13 AM   #4
gsr_kashyap
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caeda, i meant to block yahoo messenger by my network ip's.
any script is also welcomed.all idea's are welcomed


Last edited by gsr_kashyap; 11-13-2004 at 04:34 AM.
 
  


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