Snort mailing list archives

RE: MYSQL 4.0 root login attempt


From: "David Naylor" <DNaylor () TEXASTRUSTCU ORG>
Date: Wed, 17 Aug 2005 14:59:51 -0500

It looks like the MySQL server is requiring re-authentication every morning around 7.  Not sure why this is happening, 
but the two Snort boxes attempt to connect remotely.  The one running Server 2003 is successful and shows no error, the 
one running Windows 2000 is unsuccessful, loses connection and produces the aforementioned error. 



-----Original Message-----
From: snort-users-admin () lists sourceforge net
[mailto:snort-users-admin () lists sourceforge net]On Behalf Of Paul
Schmehl
Sent: Tuesday, August 16, 2005 4:48 PM
To: Snort-users () lists sourceforge net
Subject: RE: [Snort-users] MYSQL 4.0 root login attempt


--On Tuesday, August 16, 2005 16:24:36 -0500 David Naylor 
<DNaylor () TEXASTRUSTCU ORG> wrote:

It's running on Red Hat Linux (which I'm not real familiar with).  What
is this HUPing stuff all about?

When the syslog daemon turns over log files, it usually restarts the 
process that writes to the file so it will begin writing to a new one.  If 
you look at man (1) kill and man (5) newsyslog.conf, you'll see what I mean.

Kill has several options it can use, including TERM, which means terminate 
the process normally, KILL, which means kill the process unconditionally, 
and HUP, which means "hangup" and restart.  If your install of snort 
created an entry in newsyslog.conf that tells syslog to turn over the snort 
logfile and HUP the daemon, that would explain why this happens every night.

RedHat uses a script called logrotate to turn over log files and restart 
daemons.  IIRC, the scripts are in /etc/logrotate.d/ (I don't use RedHat 
any more, so I'm going by memory.)  If there's a script in there named 
"snort", then it's probably restarting the daemon every night.

Paul Schmehl (pauls () utdallas edu)
Adjunct Information Security Officer
University of Texas at Dallas
AVIEN Founding Member
http://www.utdallas.edu/ir/security/


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SF.Net email is Sponsored by the Better Software Conference & EXPO
September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
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Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
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