5.4. Using configuration files in /etc/sysctl.d/ to adjust kernel parameters

Procedure

1. Create a new configuration file in /etc/sysctl.d/:

   # vim /etc/sysctl.d/<some_file.conf>

2. Include kernel parameters, one per line:

   <TUNABLE_CLASS>.<PARAMETER>=<TARGET_VALUE>
   <TUNABLE_CLASS>.<PARAMETER>=<TARGET_VALUE>

3. Save the configuration file.

4. Reboot the machine for the changes to take effect.

   • Alternatively, apply changes without rebooting:

     # sysctl -p /etc/sysctl.d/<some_file.conf>

     With this command, you can read values from the configuration file which you created earlier.

     See sysctl(8) and sysctl.d(5) man pages on your system for more information.