What free options are available for web content filtering? [closed]

Solution 1:

You might want to look into using Untangle (untangle.com). If you don't mind adding an additional server to your system. It doesn't integrate with ISA, but it does have content filtering and a “bridge” mode. I was using ISA with GFI WebMonitor, but switched to Untangle for budgetary reasons. I've been very happy with it, and it also has additional features as well. I know it has some AD integration capabilities, but I'm not sure if they are exactly what you are looking for.

Solution 2:

A quick and easy starting point would be OpenDNS http://www.opendns.com/ . It will not allow a per user policy on what to block and what not to block. But you could still use your ISA for managing Access to the internet based on Groups.

Squid will integrate into AD but thats only a startingpoint as it does not do contentfiltering out of the box

Solution 3:

You might consider a product like Untangle. In it's basic form it's the router for your network but it includes free add-on modules for web filtering and also a paid ActiveDirectory connector that has reasonable cost if you need the per-user filter.

Solution 4:

You can use Sun's proxy server which is free and has a nice installer for windows to track where people are going. It has the typical deny/allow pages but no listing of sites. Have it use the DNS servers from OpenDNS where you can setup that.

This way if someone tries to go to something they should not, the Sun Proxy will log the request and who did it (assuming you turn on the AD intergration) and the OpenDNS will block it. :)

Solution 5:

You may want to check out this how-to.

http://howtoforge.com/dansguardian-with-multi-group-filtering-and-squid-with-ntlm-auth-on-debian-etch