DansGuardian
DansGuardian filters the content of pages based on many
methods including phrase matching, Platform for Internet Content
Selection (PICS) filtering and URL filtering. It
does not purely filter based on a banned list of sites.
This software provides real-time virus scanning capabilities
for content
access.
DansGuardian is designed to be completely flexible and allows
you to tailor the filtering to your exact needs. It can be as draconian
or as unobstructive as you want. The default settings are geared
towards what a primary school might want but DansGuardian puts you in
control of what you want to block.
DansGuardian requires squid or another similar caching proxy
server on your local network. It is award winning software
Features include:
- Significantly cheaper than IGear (one of the best
commercial filters)
- Block adverts by the use of an advert URL block list
- Flter text and HTML pages for obscene (sexual, racial,
violent, etc) content
- Uses an advanced phrase weighting system to reduce over or
under blocking
- Filter sites using the PICS labeling system
- Filter according to MIME type and file extension
- Filter according to URLs including Regular Expression
URLs
- URL filtering is compatible with squidGuard black lists
- The URL filtering is able to filter https requests
- Can work in a 'whitelist' mode where all sites except those
listed are blocked
- Can block all IP based URLs
- Is able to block sites when users try using the IP address
of the site instead
- Produces a log in a very human readable format
- Optionally produces a log in CSV format for easy import
into databases etc
- Able to log the username using either Ident or basic
proxy authentication
- Ability to switch off filtering for specified
sites, parts of sites, browser IPs and usernames
- Bock specified source IPs and usernames
- Block or limit web uploading (e.g. attachments in
Hotmail)
- Work in a stealth mode where it logs
sites that would have been blocked, but does not block them. This
allows you to monitor your users without them knowing
- Uses a very intelligent algorithm to match phrases in web
pages mixed in with HTML code and white space
- Big5, Unicode and top-bit set characters can be used in
search phrases
- URL filtering is significantly faster than squidGuard
- The configuration lists use the same incredibly fast code
that allows them all to be hundreds of thousands of entries long
- Can be made to re-read config files with a HUP signal
- Works perfectly in conjunction with Squid and Oops
- Has no 3rd party library requirements (no nb++ as was used
in version 1) so can be installed much easier and so is also provided
as an RPM
- Supports (adds) the squid X-Forwarded-For header line
- Supports compressed (Content-Encoding gzip and deflate)
HTML
- Can be made to only listen on 1 IP
Return
to Content Control Home Page
Last Updated Saturday, June 16 2012 @ 05:49 AM EDT
| 
