How to change system hostname in SUSE

openSUSE and SLES will assign a random hostname to the system during installation if not manually set. The random hostname starts with linux- followed by four random alphanumeric characters.

hostname information for openSUSE and SLES is stored in /etc/hostname file as with other Linux systems. You can change the hostname for your SUSE system by editing the /etc/hostname file or by using hostnamectl program at the terminal.

Step-by-step video guide:

Steps to change hostname in openSUSE and SLES:

Open the Terminal application.
Show current hostname.
```
user@linux-ui1m:~> hostname
linux-ui1m
```
hostname is normally displayed in at the shell prompt via \h in the $PS1 environment variable.

Set hostname using hostnamectl.

user@linux-ui1m:~> sudo hostnamectl set-hostname host
[sudo] password for root:

Check hostname again to confirm.
```
user@linux-ui1m:~> hostname
host
```
The shell prompt is not immediately updated as $PS1 is only set when a new shell is started
Start a new shell to test.
```
user@linux-ui1m:~> bash
user@host:~>
```

Author: Mohd Shakir Zakaria
Mohd Shakir Zakaria is an experienced cloud architect with a strong development and open-source advocacy background. He boasts multiple certifications in AWS, Red Hat, VMware, ITIL, and Linux, underscoring his expertise in cloud architecture and system administration.

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