DansGuardian is a web content filtering proxy for Linux, FreeBSD, OpenBSD,
and Solaris. It relies on a proxy server, for all fetching. The preferred
proxy is Squid, however, DansGuardian should work with any proxy server.
It filters using multiple methods, including:
- URL and domain filtering
- textual content filtering
- PICS filtering
- MIME-type filtering
- file extension filtering
- POST filtering
- user filtering
- client IP filtering
- exception lists for most of the above
