some general best practices

* disable unneeded services/daemons

* place the system behind a stateful firewall - allowing only the
application access you require for the list-serv.  Don't permit netbios,
nfs, rpc, ftp, or tftp accross inbound or outbound.

* stay up2date on all os and application level patches.

At this point, if you're sure someone got in, confirm your firewall config
and then rebuild the system - following the other steps above.

many more details, but this should get you going.

byron

-----Original Message-----
From: Desmond Witherspoon [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 24, 2001 7:28 AM
To: Exchange Discussions
Subject: Preventing Hacks


I know this is a broad question but I just want a general overview.
How would you go about securing a list server from outside malicious
attacks.
'I'm almost certain that I found how they got in but the "file is
inaccessible" because its 
in use. I need help, bad!!


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