VM not sending hostname to DNS/DHCP server
Archived
Written in February 2013. Kept as it was, so versions, links and details may be out of date.
On some VMs I spin up on ESXi the hostname is not sent to my DNS/DHCP server running in pfSense. Haven’t found exactly why because it seems occasionally Ubuntu VMs do send this correctly on first boot. I’m probably doing something not smart. Anyway, you can easily fix this problem by adding the following -
CentOS/Ubuntu
Add this to /etc/sysconfig/network
DHCP_HOSTNAME=hostnameReplace hostname with your servers hostname and restart networking. It should now send the hostname to your DNS/DHCP server.