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Old 06-21-2011, 02:53 AM   #1
stf92
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Registered: Apr 2007
Location: Buenos Aires.
Distribution: Slackware
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According to /var/log/messages the OS was always idle but I know this to be false.


Hi:

Look at this /var/log/messages, if you please:

Code:
Jun 20 04:40:01 darkstar syslogd 1.4.1: restart.
Jun 20 04:54:30 darkstar -- MARK --
Jun 20 06:34:30 darkstar -- MARK --
Jun 20 06:54:30 darkstar -- MARK --
Jun 20 07:14:30 darkstar -- MARK --
............................
Jun 20 14:14:38 darkstar -- MARK --
Jun 20 14:34:38 darkstar -- MARK --
Jun 20 14:54:38 darkstar -- MARK --
Jun 20 15:14:38 darkstar -- MARK --
This is the entire file, except for the dots. The machine had been turned on all night. Then I went to the machine and, first thing I do is
$ less /var/log/messages
$
The file was as above. But I know I was working at it from 7am to 10am at least. This needs clarification:

4:40 I turn on.
up to 6:00 idle
6:00 activity at keyboard
8:00 I leave work at the machine

It's just an example as I don't exactly remember the timing. But according to the entries I was never working.

Last edited by stf92; 06-21-2011 at 03:49 AM.
 
Old 06-21-2011, 03:53 AM   #2
wildwizard
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Quote:
Originally Posted by stf92 View Post
It's just an example as I don't exactly remember the timing. But according to the entries I was never working.
Your usage of the machine doesn't necessarily create log entries, so without a logable event occurring nothing will appear in the logs.
 
Old 06-21-2011, 03:56 AM   #3
16pide
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/var/log/messages does not log user activity, it logs system events.

view a video and it won't be logged there.
plug a usb stick, and it will be logged
getting a dhcp address will get logged there too
 
Old 06-21-2011, 04:07 AM   #4
stf92
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Registered: Apr 2007
Location: Buenos Aires.
Distribution: Slackware
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Thank for the posts.
And what is the meaning of -- MARK -- ? This entry means there has been no activity for the last 20m, I think and my experience tells me.

Last edited by stf92; 06-21-2011 at 04:09 AM.
 
Old 06-21-2011, 04:22 AM   #5
chrisretusn
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Registered: Dec 2005
Location: Philippines
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Quote:
Originally Posted by stf92 View Post
But according to the entries I was never working.
Nope, it simply means that nothing occurred that was worth logging.

MARK is time marker, it tells you the logger is working.

Quote:
Originally Posted by man syslogd
-m interval

The syslogd logs a mark timestamp regularly. The default interval between two -- MARK -- lines is 20 min-
utes. This can be changed with this option. Setting the interval to zero turns it off entirely. Depending
on other log messages generated these lines may not be written consecutively.

Last edited by chrisretusn; 06-21-2011 at 04:29 AM.
 
  


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