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This article mainly introduces how to permanently modify the host name under Linux, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article.

If you want to change your hostname, you can follow these steps

Use hostname

Using the hostname command can only temporarily change our hostname, which will revert to the original when we restart it.

# hostname newhostname

Type hostname linux to change the hostname to linux, and use the uname-n command to view

At this time, our hostname has changed, why is it still Peithon on the left? try to reopen a terminal, or if you use Xshell, reopen the session.

Modify the configuration file

To permanently change your hostname, you have to go through the following steps

Modify the file / etc/sysconfig/network

Mylinux is the hostname to be set, then save exit, restart the system and you will read the configuration file and set the hostname to the new hostname.

If you do not want to restart the system at this point, you can use hostname mylinux to make temporary changes, so that even if the system is restarted, the hostname set in the read configuration file is the same as that set by your hostname, which is equivalent to the same.

In this way, the hostname setting is complete.

Hosts file

Generally, there is no need to modify the hosts file to change the hostname. The / etc/hosts file provides a function of domain name resolution, which is similar to DNS. When the Linux system sends a domain name resolution request to the DNS server, it will query the / etc/hosts file. If there is a corresponding record in it, it will use the record in hosts.

So you can modify the / etc/sysconfig/network file if you want to change the hostname, but if you want to use distribution, you need to modify the hosts file only if you need to bind the hostname to ip.

Thank you for reading this article carefully. I hope the article "how to permanently modify the host name under Linux" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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