Detailed explanation of Linux host name modification command
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Linux change hostname command 1. If you only need to temporarily change the host name, you can use the hostname command. sudo hostname <new-hostname> # For example: sudo hostname myDebian This command does not change the static hostname in the /etc/hostname file, it only changes the transient hostname. So after restarting the computer it will go back to the old hostname. 2. If you want to permanently change the host name, you can use the hostnamectl command, or use vim to manually modify the /etc/hostname file The command syntax is: sudo hostnamectl set-hostname <newhostname> # sudo vim /etc/hostname This command will delete the hostname in the /etc/hostname file and replace it with the new hostname. Content extension : 1. View the current host name [root@fangjian ~]# hostnamectl Static hostname: brace Pretty hostname: Brace Icon name: computer-vm Chassis: vm Machine ID: 20191225111607875619293640639763 Boot ID: 25ac5021d229471382a26bea3d351de3 Virtualization: kvm Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 3.10.0-1062.9.1.el7.x86_64 Architecture: x86-64 2. Temporarily modify the host name [root@fangjian ~]# hostname yin # Temporarily modify the host name, which will become invalid after shutdown [root@fangjian ~]# hostname yin 3. Permanently change the host name 1. Method 1: Use the hostnamectl command [root@fangjian ~]# hostnamectl set-hostname Brace #Permanently set the user name, which will not expire after shutdown [root@fangjian ~]# hostname brace 2. Method 2: Modify the configuration file /etc/hostname and save and exit [root@fangjian ~]# vi /etc/hostname # Enter vi, delete the old host name, enter the new host name, Esc followed by a colon wq to exit and save the file. # reboot to take effect. The above are all the relevant knowledge points introduced this time. If you have any additions, please contact the editor of 123WORDPRESS.COM. You may also be interested in:
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