[Logcheck-users] Newbe Log check questions

Ross Boylan ross at biostat.ucsf.edu
Thu Nov 1 17:20:43 UTC 2007


On Thu, 2007-11-01 at 09:53 -0600, Denis Dimick wrote:
> I'm a newbe to logcheck and need some help writing a rule.
> 
> Here's the output I'm trying to  block:
> 
> Nov  1 09:11:52 m0n0wall ipmon[79]: 09:11:52.330133 xl0 @100:3 p
> 192.168.2.201,1900 -> 239.255.255.250,1900 PR udp len 20 291 K-S IN
> 
> And here's my rule in /etc/logcheck/violations.ignore.d/local-m0n0
violations only refers to items caught by the "serious" filters.
Probably you should put the file in ignore.d.server or one of the other
ignore.d.* directories, depending on what level you think should have
this filtered out.
> 
> ^\w{3} [ :0-9]{11} m0n0wall ipmon\[[0-9]+\]:
> [0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9]{6} xl0 @100:3 p
> 0-9]\.[0-9]\.[0-9]\.[0-9],1900 -> [0-9]\.[0-9]\.[0-9]\.[0-9],1900 PR
> udp le9n 20 291 K-S IN$ 
> 
> The rule is on one line in the single file (it's the only rule in the
> file)
> 
> I've tested it using:
> 
> sed -e 's/[[:space:]]*$//' /var/log/syslog | egrep '^\w{3} [ :0-9]{11}
> m0n0wall ipmon\[[0-9]+\]: [0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9]{6} xl0
> @100:3 p 0-9]\.[0-9]\.[0-9]\.[0-9],1900 ->
> [0-9]\.[0-9]\.[0-9]\.[0-9],1900 PR udp le9n 20 291 K-S IN$'
> 
> and it prints out the data I wish to block.

> Anyone have any ideas?
> 
> Thanks,
> 
> Denis
> 
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