Can you make a fake /dev/null? And make the real one /dev/.null or
something? The "normal" one would go to a log file somewhere. You would have
to change every program that uses it, but it might be worth it. Or is that
something built in to the kernel?

Just a thought from a clueless newbie...

Rich Cloutier
President, C*O
SYSTEM SUPPORT SERVICES
www.sysupport.com


----- Original Message -----
From: "Brian Chabot" <[EMAIL PROTECTED]>
To: "Greater NH Linux Users Group" <[EMAIL PROTECTED]>
Sent: Thursday, January 03, 2002 1:04 PM
Subject: Bash question...


> After the recent breakins on my box, I've been writing a few watch
> scripts...
>
> One of the things the intruder did was to link his bash_history to
> /dev/null.
>
> My question is....
>
> Is there an easy way to tee the $HISTFILE to more than one location?
>
> Basically, I doubt this %#^$%&^ would be smart enough to have echo'd
> $HISTFILE, but rather just linked .bash_history as it was pretty
> commonly the $HISTFILE.
>
> What I want is a mirror of .bash_history stored elsewhere in case the
> original gets fubar'd.
>
> Also, if there's a perl/networking guru, I'm looking to re-write the
> trojan to look like it's working, but instead be logging the intruder's
> actions, IP, etc.  It's a simple backdoor (only about 2.5 pages
> printed), so I might even be able to figure it out myself...
>
> Brian
>
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