I have 3 DNSONLY VPSs around the world. I recently changed the hostnames by editing /etc/sysconfig/network, but all three sent me "Hostname Configuration Error" emails overnight with the message "WHM has detected a manual hostname change.". They linked to the WHM page to change the hostname, but this does not exist in DNSONLY. What is the proper method to change a hostname in DNSONLY and to clear this misconfiguration?