visible method of virus propagation is via email, there are still plenty that
infect (compromise) servers via UDP and other unprotected ports. The SQL
Slammer worm is but one of these. A good firewall is also a near imperative as
well. Any server that offers file upload/downloads needs to have real-time A/V
scanning as well, even it is a performance hit.
Daily scanning from another (remote) box is a good thing as well, in the effort
to catch hacks, Trojans and other compromises.
My network experiences 100 to 500 attempts at compromise on a daily basis,
according to the firewall log files. This is completely different from the
onslaught of virus infected emails coming in to the mail servers.
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----- Original Message -----
From: Mike Chabot
To: CF-Talk
Sent: Wednesday, July 21, 2004 9:01 AM
Subject: Anti-Virus Software on a Server
I am wondering people's thoughts on the idea of having anti-virus software
running on a ColdFusion server?
My opinion is that this is not a good idea. Other experienced server admins
have told me that Norton AV slows down the performance of a Web server to an
unacceptable degree. In my estimation, AV software does not do a great job of
protecting Web servers, since Web servers are not running E-mail clients and
that is how most viruses seem to be spread these days. I do not believe AV
software will protect against worms attacking newly discovered security holes in
Windows, IIS, or SQL Server.
My recommendation is that, instead of real-time virus protection, servers be
periodically scanned during off-peak hours, possibly using a different machine
on the same network. Does anyone disagree with this?
Virus software has been running on many of the servers in my area for years,
and the logs indicate that no servers have ever been infected, even though many
viruses have spread through our desktop machines.
-Mike Chabot
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