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02-10-2006 08:16 AM
02-10-2006 08:16 AM
Logging - Kernel Parameter changes
I have IA64 HP-UX system with OS HP-UX 11.23
It seems some one has change the kernel parameters. After words we have also done chages in kernel parameter in month of Jan.
Need to find out followings,
1> How many number of times the kernel parameters has been change in last 6 months.
2> What are the parameters has been change & who has made the changes.
3> If any other relevant information.
Thanks in advance.
Regards
Varian Crasto
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02-10-2006 08:36 AM
02-10-2006 08:36 AM
Re: Logging - Kernel Parameter changes
What changes were made would need to be monitored by running kmtune for a listing periodically and svaing them to compare. (Or maybe compare automatically what is running vs. what you have archived as what should be running.) Only root can make changes and rebuild kernels so, unless you have direct root logins disabled, including at the console, you may not be able to track down who specifically makes the changes.
Jeff Traigle
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02-10-2006 09:10 AM
02-10-2006 09:10 AM
Re: Logging - Kernel Parameter changes
This is best kept as some kind of change control process.
Any changes (such as kernel changes) is documentated and presented. The change will be OK'd or DC'd and then recorded as part of the change control process.
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02-11-2006 02:58 AM
02-11-2006 02:58 AM
Re: Logging - Kernel Parameter changes
For example:
======================================================================
Change to configuration 'nextboot'
at 14:10:33 GMTLA on 20 January 2006 by root:
Tunable 'shmmax' changed from '34359738368' to '68719476736'.
See too:
# man kclog
Good luck
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02-11-2006 04:14 AM
02-11-2006 04:14 AM
Re: Logging - Kernel Parameter changes
You can write a script that does manual kernel production and keeps copies of the system file with the date appended.
Thats what I did when I was called upon to track that stuff at my prior job.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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02-12-2006 02:43 AM
02-12-2006 02:43 AM
Re: Logging - Kernel Parameter changes
Try kclog command for most your needs for #s 1 and 2.
For other relevant information, you can bring up the Kernel Configuration web interface by typing http://
HTH,
Sanjay
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02-12-2006 05:41 PM
02-12-2006 05:41 PM
Re: Logging - Kernel Parameter changes
2> What are the parameters has been change & who has made the changes.
3> If any other relevant information.
To answer this 3 question,
If you are having history logs for 6 months which will give details on changes by command line using kmtune or kctune.
May be sam log will give that too.
--
Muthu
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02-13-2006 07:29 AM
02-13-2006 07:29 AM
Re: Logging - Kernel Parameter changes
Thanks a lot for your responses.
Please let me know in future if I need to track the kernel parameter changes then what will be the best options.
1> Make system in auditing mode ?
or
2> Take system file backup with date append.
or
3> Use kmtune command.
Thanks & regards
Varian Crasto
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02-13-2006 07:52 AM
02-13-2006 07:52 AM
Re: Logging - Kernel Parameter changes
Rgds...Geoff
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02-13-2006 09:30 AM
02-13-2006 09:30 AM
Re: Logging - Kernel Parameter changes
Can you please let me know how & when I can put the comments ?
Also what is iiiv2 ? I am not aware of this.
Regards
Varian
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02-13-2006 10:14 AM
02-13-2006 10:14 AM
Re: Logging - Kernel Parameter changes
Is HP-UX 11iv2 not iiv2. Same as 11.23.
In this version you have to use kctune instead kmtune.
For add comments:
# kctune nproc=8192 -d "Subject for change"
Regards
Carlos Schimidt