Hostname
Hostname
Show your hostname
You can type in hostname command to see the current hostname in this machine.
hostname
Change hostname
1. Change hostname
You can edit /etc/hostname file by using your editor. And change the hostname to whatever you want.
sudo vim /etc/hostname
The new hostname file content will looks like this:
# /etc/hostname
kejyun-host-name
2. Add hostname’s ip address
If you are using the hostname as a service hostname, you can mapping the new hostname to 127.0.0.1 ip address.
sudo vim /etc/hosts
# /etc/hosts
127.0.0.1 kejyun-host-name
3. Force to change your hostname
After finish change the hostname. You can run a command to force your machine to update their hostname. Then you can see your new hostname after you re-login your system.
sudo hostname -F /etc/hostname
kj@kejyun-host-name:~$