Blocking Proxy Server Sites with NBM
Novell Cool Solutions: Tip
By Rod Urquhart
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Posted: 6 Jun 2007
We use Connectotel to filter access, but students are constantly finding new proxies to bypass the filters to get to Myspace, Bebo, etc. I must add about 10 new proxies a day to the block lists.
We added a deny rule:
This stops 90% or so of the proxy server sites. It won't stop the user from getting into proxies, but they won't get anywhere from there.
In addition, don't forget to add a rule to block Port 443 as most proxy sites offer SSL access.
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