Kernel log mechanism: How to log messages in a different file

amit mehta gmate.amit at
Sat Jun 25 11:06:45 EDT 2011

Thanks Bruce, On my system,

[rango at localhost:] locate syslog.conf

Also there is a configuration file under
/etc/rsyslog.d/50-default.conf which has
the rules for logging messages in various files, I guess I need to
edit this file.
As of now I'm also looking into the information available here:


On Sat, Jun 25, 2011 at 7:19 PM, Bruce Rowen <browen at> wrote:
> syslog.conf
> On Jun 25, 2011, at 7:40 AM, amit mehta wrote:
>> Hi,
>> I've written some kernel modules using kprobes infrastructure
>> to grab some more information on network packets. I've lots of
>> printk which by default show up in syslog file(/var/log/messages),
>> I was wondering if there are some method to redirect my printkS
>> to appear in somewhere else(say /var/log/netlog).
>> On a busy system, it gets little cluttered with other logs. Of-course
>> i can grep for my own custom messages but it would be lot more
>> convenient if i can redirect my messages in  a separate log file.
>> Considering above can be done, then what about dmesg ?
>> will they still show up in dmesg output ?
>> Regards,
>> Amit
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