Windows worms and mail server config
Chris Stankaitis
chris at beowulf.net
Fri Jan 30 19:38:56 UTC 2004
Pedro Fernandes Macedo wrote:
> After those recent freaking virii around , I'm trying to find a way to
> block them...
> What's the best way to do this?
> I want to avoid sending unnecessary bounces (specially because I'm the
> postmaster for a domain that has about 1300 users and lots of virii
> bounces dailly , which are almost driving me mad, so I want to avoid
> unnecessary pain to other domain admins) ...
> Should I just reject messages containing the damned extensions
> (scr,com,pif,bat) or should I accept them , scan them using some
> antivirus and then drop the bounces of infected messages? The second
> option leaves the risk of someone sending a valid pif or bat file that
> has "format c: /X /Q" , "deltree c: /y" or something like that , but
> leaves the valid e-mails coming... (even though I believe that normal
> windoze users dont send this kind of attachment)...
>
> Right now my server is a standard redhat 9 at work and a FC1 at home ,
> both using sendmail... How can I do this?
> (hints for qmail and postfix are welcome also , as we're thinking
> about switching from sendmail to qmail or postfix)
>
> Thanx...
>
> Pedro Macedo
>
>
You should take a look out ther at a program called - AmavisD-New it's
supports a ton of different virus scanners, content filtering, and has
hooks to plugin Spam Assasin. basically installing a virus scanner for
Linux is just one step you need a program to hook it into sendmail, and
AmavisD does this well IMHO.
Chris
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