Specify Node Hostname

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This is an optional step, which details how to specify the node hostname

	Description	Command
1	Update the /etc/hosts file Replace the default hostname with your desired hostname The default hostname typically follows "127.0.1.1", DO NOT REPLACE "localhost" See example in bold You may need to disable "manage_etc_hosts" like in the example Save and exit with CTRL+x, then type y and hit enter. NOTE: In the example I use "node01" as my hostname. I'm using the same hostname as my example FQDN: node01.zentest.win	sudo nano /etc/hosts Example Output # Your system has configured 'manage_etc_hosts' as True. # As a result, if you wish for changes to this file to persist # then you will need to either # a.) make changes to the master file in /etc/cloud/templates/hosts.tmpl # b.) change or remove the value of 'manage_etc_hosts' in #......./etc/cloud/cloud.cfg or cloud-config from user-data 127.0.1.1 node01 127.0.0.1 localhost # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts
2	Update the /etc/hostname file Replace the existing hostname with your desired hostname	sudo nano /etc/hostname Example Output node01
3	Use systemd services to set the hostname, replacing <HOSTNAME> with your desired hostname	sudo hostnamectl set-hostname <HOSTNAME> Example Output zenops@vps421337:~$ sudo hostnamectl set-hostname node01
4	Reboot the node and log back in as your non-root user to test that the host name has changed You will see the new hostname at your terminal prompt	sudo reboot Example Output zenops@node01:~$