We have smart-arse students accessing blocked sites such as Youtube, Facebook etc using ninja proxies. We're using a linux proxy. ANy ideas what the best way of preventing them getting through to these sites? (other than breaking their legs).

are you using squid?

yup, but I'm not that cluey.

What type of system is this, Windows AD? Bit of a turnaround for you, but we're running ISA/Websense and it's holding back 3500 users from facebook/hotmail etc etc. Can run with quota times to certain sites, based on AD Security Groups too.

Not sure how you're gonna do it with Linux. Be careful as with proxies a way around them it is to disable proxy servers in Internet Explorer, then change primary DNS to an external IP which will let them out - Hopefull that's not possible on your workstations with the help of group policy though.

Surely there are some form of rules that denies access to anonymous http proxies within squid? If not you need to put forward a business case as clearly there is a security risk on your network.

Have fun

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[SIGPIC][/SIGPIC]
Should have bought an STI

can try using this http://dansguardian.org/

or http://www.squidguard.org/

buy a hardware proxy service like ironport.

they capture and block all that stuff hands free without needing to manually update lists.

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Long live the WRC

The software does a similar job and its free.

Tyre lever, back room, big black guy... Problem sorted!

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Osama Bin Hooning
Senior Terrorist Operative
Perth-Wrx

Just block the internet.

What do the students need the internet for? Create a whitelist instead if its only for a few certain things.

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

sure thing.

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Long live the WRC