Setting my host name.

[Ardothewan]

Is there anyway to change my host name? On my router my host name is blank while my labtop is showing the right name. Where do I access this?
Thanks!
oh 10.4.2 on an iMac G5

 

[ElDiabloConCaca]

"Sharing" pane of the System Preferences.

 

[Ardothewan]

You know what I thought that was where it was. I tried something new and it worked. I tihnk the problem was the old name was way too long
thanks