[plug] Securing Redhat 9.0

Tomasz Grzegurzko tomasz_g at arach.net
Wed Oct 19 09:56:04 WST 2005


At my old company I implemented
http://www.impsec.org/email-tools/procmail-security.html

And it worked _really_ well. Depends on the set up of your MTAs though..

Tomasz

Quoting Leon Brooks <leon at cyberknights.com.au>:

> On Tuesday 18 October 2005 22:22, Kathryn wrote:
> > I would also like to strip all their email attachments on the way
> > in or is that getting a bit harsh? And whitelisted internet access.
> 
> Whoo! Atilla the Hen just arrived! (-:
> 
> I would recommend scanning all inbound email (ClamAV will do fine, use 
> FreshClam to keep it updated), and stripping executables (AMaViS will 
> do this neatly) but you will get a lot of staff rensentment from 
> whitelisting (what I call "French Foreign Legion" rules: "You shall do 
> nothing except..."), which is generally a Very Bad Idea.
> 
> Blacklisting the obvious ones and reading the Squid logs for new 
> suggestions every so often wouldn't hurt. Does the office have an 
> official Internet policy?
> 
> Cheers; Leon
> 
> -- 
> http://cyberknights.com.au/     Modern tools; traditional dedication
> http://plug.linux.org.au/       Member, Perth Linux User Group
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> http://linux.org.au/            Member, Linux Australia
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