Websense School Filtering

[r0b0c0p]

Hi,

I am an IT Technician at a Secondary School - we employ the latest version of Websense to filter the internet.
This has been working fine until recently when there seems to have been an increase in the number of Proxy sites used by students to access inappropriate material.
The filter does not seem to be picking these up efficiently, resulting in manual blocking.

Can anybody offer any advice please.

Thank You

[FN-GM]

Is the websense server picking up its updates?

[AMLightfoot]

Can you set websense to block any traffic that doesn't go through the proxy or does your firewall block outgoing 80/443 that is not coming from the proxy? Are you intercepting or inspecting https as a lot of students find that https sites get through little loopholes in filtering. Is websense inspecting the site certificate? If so it should block them as most proxy sites have invalid self-signed certs.

[NikChillin]

We are using this too, I have had to block all uncategorized and .info url's (too many proxies getting through), and subscribed to this site to keep up to date with the latest proxies from them. We still get some popping up through potentially damaging content which you can't stop as it probably wasn't purchased so keep an eye on that one.

[tom_newton]

unfortunately a URL filter is always going to suffer against proxies. You need a content filter... Meantime, block info and cc and use an ssl whitelist?