Setting a Hostname

1. Configure a server hostname

• For EL7: set HOSTNAME to the new hostname using the following command

  • hostnamectl set-hostname intigua.example.com

Make sure the hostname is accessible by local applications:

• Run:

  hostname -f

  If the correct hostname is returned, it is available to applications and you're done with this. Otherwise:

• Check if nss-myhostname is installed. If not, run:

  yum install nss-myhostname

  and wait for the installation to complete.

• Open the following file for editing:

  /etc/nsswitch.conf

• Find the line beginning with hosts, and add the new hostname to the end of the line. For example, change
  

  hosts: files mdns4_minimal dns

• to
  

  hosts: files mdns4_minimal dns intigua.example.com

• Again run hostname -f to confirm that the hostname is successfully resolved.