How to change the hostname of Linux cloud server

CentOS 6

1. Log in to the system remotely.

2. Use the hostname command.

hostname zhaomu.com

3. Edit the /etc/hosts file. Replace the old hostname with the new hostname.

4. Edit /etc/sysconfig/network. Change the value of the HOSTNAME parameter to the new hostname.

5. Use the hostname command to check whether it takes effect.

CentOS 7/Ubuntu

1. Log in to the system remotely.

2. Use the hostnamectl command.

hostnamectl set-hostname zhaomu.com

3. Use the hostname command to check whether it takes effect.

Debian

1. Log in to the system remotely.

2. Edit the /etc/hostname file. Replace the old hostname with the new hostname.

3. Edit the /etc/hosts file. Replace the old hostname with the new hostname.

4. Execute the hostname.sh script.

/etc/init.d/hostname.sh start

5. Use the hostname command to check whether it takes effect.

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