SquidGuard is a fast redirector and access control filter for Squid. It also provides a large collection of blacklists...
SquidGuard can be found at http://www.squidguard.org/.
ufdbGuard is the successor of SquidGuard.
See Squid and DansGuardian.
5 pages link to SquidGuard:
lib/main.php:944: Notice: PageInfo: Cannot find action page