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Date:      Sun, 3 Aug 2003 00:34:56 +0200
From:      Walter Hop <freebsd@walter.transip.nl>
To:        "mouhammad sajjad" <sajjadw21@hotmail.com>
Cc:        freebsd-isp@freebsd.org
Subject:   Re: anti virus
Message-ID:  <837849410.20030803003456@blue.calx.nl>
In-Reply-To: <Sea1-F133rNKBqujscl0000aa9d@hotmail.com>

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[in reply to sajjadw21@hotmail.com, 1-8-2003]

> i m using freebsd as a proxy server i need an antivirs for it as i get
> a lot of virus links getting passed my network.

Do you mean a HTTP proxy server, such as Squid? There is a filter plugin
for Squid and a new "squid-vscan" project that is supposed to scan
content on-access using a virusscanner.

I haven't tried it out yet; there is no FreeBSD port yet but good chance
it will run. http://www.openantivirus.org/projects.php

I would assume that scanning every incoming file will use your available
system resources quickly. As long as browsers are broken and ignore the
Content-Type you will have to fire up the virusscanner for *every* cache
miss; if you have many people behind the proxy you will probably need
fast disks and probably even multiple proxies.

I don't have plans for such a setup currently, but it seems like an
interesting task. Let me know what solution worked out for you and what
your comments are about its performance!

cheers,
walter


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