Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Previously, formatting my iMac's HDD and clean-installing OS X 10.6 on it, used to rename the computer name back to OS X default computer name which is derived from the user's first and last names.

Now today I formatted my iMac's HDD and clean-installed OS X 10.6 on it, and while opening the Sharing panel shows that the computer name has been reverted back to the default computer name, opening Terminal still shows my old computer name in the prompt but with all lowercase letters. Changing the computer name in the Sharing panel does not immediately change the computer name in the Terminal prompt anymore. I have to restart the iMac to see the changes. And even so, Terminal does shows the computer name in all lowercase letters.

Any ideas why is this happening?

share|improve this question
Is there a DNS name associated with the computer's IP address? – Gordon Davisson Aug 17 '10 at 16:28
up vote 3 down vote accepted

Perhaps you computer is getting its hostname via DHCP? You may need to change it on your router or wireless access point.

share|improve this answer

If you are on a corporate network, the DNS server used there may be storing a DNS name for you PC and OS X looks up the name via reverse-DNS lookup.

Considering you have a clean install, I would definitely look the DHCP and DNS-server way. That includes talking to the network administrator.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .