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Help me block Vtunnel

Hello: I am a system administrator for a public library, and the kids here have learned to bypass our site blocking software (bluecoat) by using vtunnel. How can I block use of vtunnel? We are running windows 2003 server.
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Mykal007
Asked:
Mykal007
2 Solutions
 
Rich RumbleSecurity SamuraiCommented:
block the Vtunnel site and proxies ip's in the 2003 firewall or in the BlueCoat program. There are many others like hidemyass.com. Users should not be administrators on this machine, place them in the users or guest group.
http://sitereview.bluecoat.com/sitereview.jsp
The page you want reviewed is http://www.vtunnel.com/   (Check another site)
This page is currently categorized as Proxy Avoidance
The page you want reviewed is http://www.hidemyass.com/   (Check another site)
This page is currently categorized as Proxy Avoidance

It appears BlueCoat knows about these sites, so I'd think it could block them.
-rich
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orangutangCommented:
Yeah, those are hard to block. Take a look here and make sure these are blocked: https://proxy.org/
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