The runtime system on each client machine passes the client host name to the server machine.
For Windows 2000 or 2003 and Windows XP clients, right-click the My Computer icon on the desktop and select Properties from the pop-up menu.
In most instances, the computer name listed in the Full computer name field is the host name used by the runtime.
You can also verify the host name by typing the command hostname at the Windows command prompt.
The name you specify for Host Name is the one that the runtime uses.
On UNIX clients, the runtime uses the host name that is in the file /etc/ hosts.