Hi I`m using squid and squidguard but my boss wants to use websense because he thinks that websense has a better blacklist and I have to convince him that squidguard can do it better and I`m looking for a good site to get better blacklist .
Hi,
I use squidguard to filter adult content only.
I am not really convinced by the squidguards blacklists available, but at least they are a good start. Some sites seem to register new domains faster than they update their content :-)
Especially not very common TLD's are missing from the lists.
What I did:
I combined all available lists together with the chastity-package available for debian.
The next step was a personal blacklist robot, go it from
http://sase.de/squid/
You have to feed the script with some p*rn-metasites, the more the better. It has difficulties to parse something else than direct httplinks, take care that the site does not use an exit-cgi (a lot of them do).
The script delivers a lot of false positives, and must be configured to filter them, so take care.
I wrote a small script which does a double check by taking a quick look with wget and parsing the result. Nothing sofisticated.
In fact it doesnt matter, how good a content filter is. There are always possibilities to bypass them.
Easiest way to do this is google either with the cache or the translate feature.
Jap is another good way: http://anon.inf.tu-dresden.de/index_en.html
It is nearly impossible to block. Only way is to lock down the clients machines to prevent that software to be used.
IMHO a content filter can be only a warning to the users that surfing a certain type of sites is forbidden by policy. The enforcement must be done differently.
Regards, Hendrik Voigtl�nder
