Blocking Proxy Web Sites that Bypass Filters
Novell Cool Solutions: Tip
By David Pickett
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Posted: 20 Jun 2007
ProblemI am hoping to consolidate ideas or solutions to the everg-rowing website proxy sites that bypass filters. I have been monitoring and inputing new rules and these sites come up.
I find using the proxy cache monitor NWAdmin very effective on finding the commonly used sites and I also use BRDstats to create the HTML statistics logs of every 10MB log file I have. We currently do not use a 3rd party content filter, so therefore it's very hard to keep up the paces with these new sites that come up. I noticed that many of the sites are now providing automatic email of new proxy sites to help keep ahead of the filters.
I have found the following list for blocking search terms:
http://*/*q=*proxy* http://*/*b=*proxy* http://*/*q=*bypass* http://*/*b=*bypass* http://*/*q=*myspace* http://*/*b=*myspace* http://*/*q=*game* http://*/*b=*game* http://www.dogpile.com/info.dogpl/search/web/*myspace* http://www.dogpile.com/info.dogpl/search/web/*proxy* http://www.dogpile.com/info.dogpl/search/web/*game* http://www.dogpile.com/info.dogpl/search/web/*unblock*
I have also used port access rules to deny access to domains. Here's my list of domains to block ...
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