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Ran into this very interesting issue today, I was trying to add two servers I had rented into NewRelic’s server monitor. The first one was successful but I couldn’t for the life of me add the second one. Turn’s out…
Changing the hostname on CentOS 7 is pretty straight forward, issue the following at shell and replace HOSTNAME with the hostname you want to set. hostnamectl set-hostname HOSTNAME To verify that the new hostname is set issue the following: hostnamectl