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

[anuj01@gmail.com (अनुज)]

On Mon, Jun 27, 2011 at 10:27 PM, Ramesh.P <rameshpa@gmail.com> wrote:
> Hi,
>
> Regarding dmesg. I believe it will still show up in it. It can be
> controlled by /proc/sys/kernel/printk settings. As per man 5 proc:
>
> ? ? ? /proc/sys/kernel/printk
> ? ? ? ? ? ? ?The four values in this file are console_loglevel, ?default_mes-
> ? ? ? ? ? ? ?sage_loglevel, ? ? minimum_console_level ? ? and ? ?default_con-
> ? ? ? ? ? ? ?sole_loglevel. ?These values influence ?printk() ?behavior ?when
> ? ? ? ? ? ? ?printing ?or logging error messages.
>
> Regards,
> Ramesh
>
> On Sat, Jun 25, 2011 at 1:05 PM, Mulyadi Santosa
> <mulyadi.santosa@gmail.com> wrote:
>> On Sat, Jun 25, 2011 at 20:40, amit mehta <gmate.amit@gmail.com> 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.
>>
>> side speaking, consider using netlink and create a user space netlink
>> grabber specificly to read the messages that thrown in your netlink
>> channel. IMO that would be faster and not cluttering the syslog
>> buffer...especially if you need to save tons of messages.....just my $
>> 0.002 tips :D
>>
>> --
>> regards,
>>
>> Mulyadi Santosa
>> Freelance Linux trainer and consultant
>>
>> blog: the-hydra.blogspot.com
>> training: mulyaditraining.blogspot.com
>>
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>>
>
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>

Try syslog-ng:

http://en.wikipedia.org/wiki/Syslog-ng

http://itexam.blogspot.com/2009/03/logging-with-syslog-ng.html

google for more !


-- 
Anuj Aggarwal

?.''`.
: :? :?? # apt-get install hakuna-matata
`. `'`
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