I run the IT Dept at a small high school with about 500 users on the network. We have been using SurfControl for this which has been handy because it backs into MS ActiveDirectory very well. We currently have it working on top of ISA. However, SC has now been end-of-lifed for some time and its Websense replacement is simply outside our budget.
I'm aware that there are things like Dan's Guardian amongst many others which allow content filtering over squid, but I'm not sure if any of them understand ActiveDirectory or AD's LDAP.
Has anyone had experience with this?
We use content filtering to block "obvious" categories that are unsuitable for minors and then block other categories during school hours to conserve our limited bandwidth. Blocking advertising is a great advantage of SC :-)
We require authentication and logging controls which worked seemlessly with the ISA proxy authentication.
I've installed a few linux desktops, but this is a little out of my depth. Where do I start?