change hostname in Centos 7

Posted on February 6, 2017  •  1 minutes  • 154 words  •  Suggest Changes

It’s nice to give servers a name, while web-01, db-01, lims-01,… are all valid names. It’s a lot more fun to name them coffee names (breva, macchiato, ristretto,…) or our new generation are named after ‘mythical beast/monsters’ (wendigo, elf,…) although its not to strict, and we allow for TV characters (like Lagertha from vikings) also. Anyway I strongly believe in creating a bond between human (sysadmin, devops, …) and machine. It helps for a good TCP communication :). This is how you can do it on Centos 7. (perhaps there are more option)

Set the name using : hostnamectl set-hostname lagertha

hostnamectl set-hostname $name

Validate using : hostnamectl status

[root@prothserver ~]# hostnamectl status
   Static hostname: lagertha
         Icon name: computer-server
           Chassis: server
        Machine ID: 4a3901cperhaps_this_is_privateadb
           Boot ID: bthis_for_sure_is_not_here7613537
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-514.el7.x86_64
      Architecture: x86-64

What kind of funky names do you name you’re server army ?