Hi, I have recently encountered a strange thing in OS X v10.4.8 on my Core Duo MacBook Pro. I don't know when the change happened, but now when I use the terminal the prompt seems to be using "4f9ysjw88y060ke" as my hostname. I have PS1 (the environment variable that bash uses to show its normal prompt) set to the default '\h:\w \u\$ '. The only place I can find in the System Preferences for setting a computer name is in Sharing, but that still says "Thomas Harte's Computer" as I would expect. Neither /etc/hostconfig nor /etc/hosts seem to have anything unusual in them. So, what in OS X decides the hostname, and where can I go to change it?