[gentoo-amd64] /var/log

2005-12-21 Thread Gavin Seddon
Hi all,
I have been looking in '/var/log' for users logging on.  The files and
directories in there are fastidiously organised (to say the least).
Better than usual UNIX distros.  What is the best place to look for
logins/hacks.
Gavin.
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Dr Gavin Seddon
School of Pharmacy and Pharmaceutical Sciences 
University of Manchester
Oxford Road, Manchester 
M13 9PL, U.K.

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Re: [gentoo-amd64] /var/log

2005-12-21 Thread Craig Webster

On 21 Dec 2005, at 12:32, Gavin Seddon wrote:

I have been looking in '/var/log' for users logging on.  The files and
directories in there are fastidiously organised (to say the least).
Better than usual UNIX distros.  What is the best place to look for
logins/hacks.


Which syslog daemon do you use? How is it configured?

I use metalog and I get password failure notices in /var/log/pwdfail/*

You could also run
lastlog  |grep -v '**Never logged in**'
to see when people last logged in.

Yours,
Craig
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Re: [gentoo-amd64] /var/log

2005-12-21 Thread Brett Johnson
  On 21 Dec 2005, at 12:32, Gavin Seddon wrote:
   I have been looking in '/var/log' for users logging on.  The files and
   directories in there are fastidiously organised (to say the least).
   Better than usual UNIX distros.  What is the best place to look for
   logins/hacks.
You should take a look at
http://www.gentoo.org/doc/en/security/security-handbook.xml. It has some
great information on securing your install, from pyhsical security to
logging all activity and everything inbetween. I would recommend setting
up logsentry (see section 3. Logging) which is a tool that parses the log
files and then emails you with unusual events.  It takes a little tweaking
to get it working good with metalog, but is very useful once it's setup.

I see you next thread is on firewalls, and that is addressed in the
security handbook too.

Brett
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Re: [gentoo-amd64] /var/log

2005-12-21 Thread Eric Bliss
On Wednesday 21 December 2005 04:32 am, Gavin Seddon wrote:
 Hi all,
 I have been looking in '/var/log' for users logging on.  The files and
 directories in there are fastidiously organised (to say the least).
 Better than usual UNIX distros.  What is the best place to look for
 logins/hacks.
 Gavin.

Try looking at auth.log and wtmp.  auth.log is a plaintext log of login 
attempts, and wtmp is a binary file that is used by the who command, and 
can also be accessed by the last command.

-- 
Eric Bliss
systems design and integration,
CreativeCow.Net
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