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Do not know how to use linux's sysctl command to configure kernel parameters? In fact, it is not difficult to solve this problem. Let the editor take you to learn how to solve it. I hope you will gain a lot after reading this article.

The sysctl command is used to dynamically modify kernel run parameters while the kernel is running, and the available kernel parameters are in the directory "/ proc/sys".

It includes some advanced options for TCP/ip stacks and virtual memory systems, which allow experienced administrators to improve eye-catching system performance. You can read and set more than five hundred system variables with sysctl.

The modification of kernel parameters by sysctl command only takes effect at present, and the parameters are lost after the system is rebooted. You can modify the configuration file "/ etc/sysctl.conf" if you want the parameter to take effect permanently.

Syntax format: sysctl [parameters]

Common parameters:

-n do not print keywords when printing values-e ignore unknown keyword errors-N only print names-w use this-p to load kernel parameter settings from configuration file "/ etc/sysctl.conf" when changing sysctl settings-a prints all currently available kernel parameter variables and values-A prints all currently available kernel parameter variables and values in tabular form

Reference example

View all readable variables:

[root@linuxcool] # sysctl-a

Read a specified variable:

[root@linuxcool ~] # sysctl net.ipv6.neigh.lo.locktimenet.ipv6.neigh.lo.locktime = 0

Modify the value of the specified variable:

[root@linuxcool] # sysctl net.ipv6.neigh.lo.locktime=1net.ipv6.neigh.lo.locktime = 1 Thank you for reading this article carefully. I hope it is helpful for everyone to share the contents of configuring kernel parameters using linux's sysctl command. At the same time, I also hope you can support us, pay attention to the industry information channel, and find out if you encounter problems. Detailed solutions are waiting for you!

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