May 14, 2007

Howto install a content filtering and virus checking proxy

Frank Neugebauer writes "Commercial filters are often expensive, especially when used on a large
number of computers, as would be the case in a school computer lab or
in small or medium companies with computer networks. In contrast, open
source filters are generally freely available for download. In
addition, since commercial filters are proprietary, in many cases the
system administrator does not have the opportunity to modify or even
view the lists of blocked sites. 
With a typical server-based filtering and virus scan solution
running on a proprietary operating system, you would have to pay
hundreds or possibly thousands of dollars for the server's operating
system, on top of per-seat user licensing fees for the server as well
as the filtering software. With an open source solution you can be up
and running with no software and upgrade costs whatsoever.
In the first part of the article
we installed SquidGuard, which works through the caching and proxying
program Squid. We will now combine the solution with the virus scan
engine ClamAV and will get a complete content filtering and virus
scanning proxy."



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