Security | Kernel message

Mel fbsd.questions at rachie.is-a-geek.net
Tue Oct 28 16:11:42 PDT 2008


On Tuesday 28 October 2008 17:32:36 Jeremy Chadwick wrote:
> On Tue, Oct 28, 2008 at 05:26:03PM +0100, Jos Chrispijn wrote:
> > A prt of my daily security run:
> >
> > triton.xxx.xxx.xxx kernel log messages:
> > +++ /tmp/security.VnqB8ZT6	2008-10-27 23:53:32.000000000 +0100
> > +em0: link state changed to DOWN
> > +em0: link state changed to UP
> > +em0: link state changed to DOWN
> > +em0: link state changed to UP
> > +em0: link state changed to DOWN
> > +em0: link state changed to UP
> >
> > Is there a way of adding the time on every DOWN and UP line?
>
> No, because the messages are in the kernel log.  The kernel itself does
> not print timestamps, because that's silly.
>
> Try doing this:
>
> 1) Edit /etc/syslog.conf and enable /var/log/all.log,

Actually, these end up in /var/log/messages in a vanilla system (*.notice). 
You can modify /etc/periodic/security/700.kernelmsg, by using:
fgrep 'kernel: ' /var/log/messages 2>/dev/null |

where it says:
dmesg 2>/dev/null

Or more prescise: fgrep 'your.host.name kernel: ' /var/log/messages

This will give you timestamps with the output. I can't really think of 
anything that does end up in dmesg and not in /var/log/messages, but I'm sure 
there are some.
-- 
Mel

Problem with today's modular software: they start with the modules
    and never get to the software part.


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