chnaging VSPhere to display host name instead of IP

OK- I saw the instructions VMWare posted, to change display in Vsphere for the host from IP address to Hostname. I SSH'd into the host (running 5.5) and tried to delete the vpxuser, but I get user not found. I then reconnect to the the host in Vsphere, and it justs reconnects with the IP.

What can I do to change the display from IP to Hostname?

Thanks....
BKennedy2008Asked:
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AbhilashBloggerCommented:
vpxuser is not relater to IP of the Host or its hostname. vpxuser is a user created on the ESXi host by vcenter when the Host is added to it. Is this part of vCenter?
First you will have to login into the DCUI(Yellow and gray screen) console and give the host a hostname. Configure the DNS and make sure the host name is resolved.

Then you will have to Add the Host to the vCenter with its Hostname instead of IP. This will make the host register with vCenter with Hostname. Also note that the vCenter server should be able to resolve the hostname of the ESxi host.
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BKennedy2008Author Commented:
Yes- It is part of VCenter and yes, they can resolve each other's hostname.
Should I just remove them from VCenter, then re-add them without any side effects? (Meaning with the powered on VM's.)

Side note is they are in a cluster with DRS and HA, so it sounds like I will need to remove the cluster as well, and then remove the hosts, re-add the hosts, then re-add the cluster and reconfigure DRS and HA settings.
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AbhilashBloggerCommented:
Yes.
First you will have to Disable HA and DRS(If its allowed).
The quickly disconnect the host and the remove it from the cluster. Then add the host back. Make sure you have Root password handy with you as you need it to re-add the host back to vcenter.
Remember to add the host back with hostname.

VM's will not be affected by this process. make sure you do not have vApps and resource pools. Even if you do make sure you remember the settings as you might have to re-create them.
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