Zero-length bash .history file!

revmyo · 12-02-2005, 10:57 AM

Routinely running chkrootkit yesterday, I noted a warning to the effect that root's bash .history file was found to be zero-length. Since I'm about as sure as I can be that I didn't do that myself, I'm wondering if this means that the system has been cracked. Are there other tests I can run to double-check, somehow?

Thanks in advance,
Denis

P.S. I didn't find other threads about this in LQ.

jailbait · 12-03-2005, 08:09 PM

"Are there other tests I can run to double-check, somehow?"

In SuSE the default history file size is 1000.
You can log in as root and use these commands to verify that bash's .history is in fact zero length:

echo $HISTFILESIZE
echo $HISTSIZE

----------------------
Steve Stites