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--- change_host_name [2023/04/03 06:58] – created walkeradmin
+++ change_host_name [2023/04/03 07:08] (current) – walkeradmin
@@ Line 14: / Line 14: @@
     hostnamectl
+\\
+This will give an output similar to below:
+\\
+<file>
+   Static hostname: localhost.localdomain
+         Icon name: computer-server
+           Chassis: server
+        Machine ID: 87b77afdf05948d88282bb44dc1e8386
+           Boot ID: a7c17a79aa394c2f84758fa133c735cb
+  Operating System: AlmaLinux 8.5 (Arctic Sphynx)
+       CPE OS Name: cpe:/o:almalinux:almalinux:8::baseos
+            Kernel: Linux 4.18.0-348.el8.x86_64
+      Architecture: x86-64
+</file>
+In this example we can see that the hostname is the default value of <color #ed1c24>localhost.localdomain</color> and we want to change this to something that we can use and recognise.
+\\
+\\
+To set the hostname use the following:
+    hostnamectl set-hostname 'your-hostname'
+\\
+\\
+For example, lets say I want to change the hostname to be mailsvr, then I would use:
+    hostnamectl set-hostname mailsvr
+\\
+\\
+We can now check the hostname from the console again using:
+    hostname
+    or
+    hostnamectl
+\\
+\\
+The hostname returned will now be the one you set (mailsvr) in this example.
+\\
+\\
+We also need to edit the following file:
+    /etc/hosts
+\\
+\\
+Add a line at the end of the file with your <color #ed1c24>Alma Linux IP</color> and the <color #ed1c24>hostname</color> you just used:
+<file>
+.0.0.1   controller localhost.localdomain localhost4 localhost4.localdomain4
+::1         controller localhost.localdomain localhost6 localhost6.localdomain6
+.10.10.1    mailsvr
+</file>
+\\
+\\
+Now reboot the Alma Linux instance.
+\\
+\\
+When you log back in, you should see your command prompt now contains your hostname:
+    [root@mailsvr /]#
+\\
+\\
+Hostname setting is complete.
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