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How to use sysctl command

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frederick hannah
Super Advisor

How to use sysctl command

I am installing an application on a Redhat 3.4 server. The install requires a reboot as kernel parms have been changed. I am told the sysctl command dynamically changes kernel parms without a reboot. The procedure requires I edit the /etc/syscntl.conf file then do a "sysctl -p /etc/syscntl.conf" command to effect the changes. I dont see the parms needed in the conf file. Do I have to add them?
5 REPLIES
P Muralidhar Kini
Honored Contributor
Solution

Re: How to use sysctl command

Hi Frederick,

To find more info on the sysctl command, refer
http://linux.about.com/library/cmd/blcmdl8_sysctl.htm
http://www.ghacks.net/2010/05/13/tune-your-linux-kernel-with-sysctl/

Hope this helps.

Regards,
Murali
Let There Be Rock - AC/DC
frederick hannah
Super Advisor

Re: How to use sysctl command

Thanks for the help.
P Muralidhar Kini
Honored Contributor

Re: How to use sysctl command

Hi Frederick,

Refer the following link which says how you can thank this forum
http://forums11.itrc.hp.com/service/forums/helptips.do?#28

Regards,
Murali
Let There Be Rock - AC/DC
Ivan Ferreira
Honored Contributor

Re: How to use sysctl command

Short answer: yes, you must add them.

The sysctl -p forces the application of the parameters.

Using sysctl -a you can check all the parameters and their values.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
frederick hannah
Super Advisor

Re: How to use sysctl command

Thanks again guys