Change Virtual Compute Nodes Hostname
Please follow the below steps to change the hostname of your Virtual Compute Node.
Login to your Virtual Compute Node as a root user.
To check the current hostname of your server, run the command
To change the hostname of your server, type new name followed by hostname
Change the hostname under the path /etc/sysconfig/network
Edit the content of the file so that it looks like this
Next, edit the /etc/hostname file and update hostname:
Edit the /etc/hosts file and update your old-host-name:
Immediately after executing the previous command, the hostname is changed, but the change will last only until the next reboot. To permanently change the hostname, the next step is to run the following command in your terminal
This will take you inside the directory one-context.d
List the contents of the directory by running the following command,
You will see the following result
drwxr-xr-x 2 root root 4096 Oct 26 19:48 . drwxr-xr-x 72 root root 4096 Jan 21 15:04 .. -rwxr-xr-x 1 root root 4433 Jan 15 2015 00-network -rwxr-xr-x 1 root root 1991 Jan 15 2015 01-dns -rwxr-xr-x 1 root root 1720 Jul 12 2016 02-ssh_public_key -rwxr-xr-x 1 root root 28 Jan 15 2015 03-selinux-ssh -rwxr-xr-x 1 root root 15 Jan 15 2015 04-mount-swap -rwxr-xr-x 1 root root 614 Jan 15 2015 05-hostname -rwxr-xr-x 1 root root 297 Jan 15 2015 99-execute-scripts
We need to move the directory 05-hostname to root folder. To execute this run the following command in the terminal.
mv 05-hostname /root/
Now your hostname is changed permanently.