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Filtering bypass

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7 replies

by cporter

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I work for a large public school district. We have a problem with students and teachers bypassing our web filtering (websense). They are simply pointing their browsers to an outside proxy server and they have unfiltered access. I cannot use group policys as they are older 9x machines and personal laptops. We do not have a network registration system in place and there is no budget for one. Does anyone know how I can prevent this? I am running websense v. 5.5 and cisco PIX version 7. Any help would greatly be appreciated.

Thanks

Chris

7 replies

by sbrown95

I would configure the router/firewall to only allow the ip of your Internet proxy to access the internet. This is assuming you have an internet proxy server. In any case, you should as it saves many headaches such as this one. It sounds like the clients are connecting directly to the internet. If you were to only allow the proxy to access the internet you would not have this problem. Of course we all have come to the understanding that no web "filter" is 100% effective. There will always be a way around them.

by jmgarvin

Blacklist, Blacklist, Blacklist! Kill those outside sites that allow them to bypass your proxy.

There are great blacklist sites on the web for .edu's.

by cporter

The sites are filtered out, they cannot get to them from within. The go home and get the IP's then change the proxy settings in the school.

by jmgarvin

They CHANGE the proxy settings in the school??? What?

How do they go home and change the proxy settings at the school????

by kraftybob

you just stop the key word seach on you school system and that would then flag up what pupil is trying to go onto each site this would stop them being able to go onto the seach engine which they want to use for it.

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