The host name is the system text name for the host site. It can be up to 128 characters long.
Start Element Manager.
On the Configuration
tab, choose the System folder.
The system tasks appear.
Choose the IP
subsystem task.
The IP subsystem tabs appear.
On the General Settings tab, check the System Name box for a system name. If one is not entered, enter one now. A system name can be any name (for example, myCompany).
For more information refer to the Message Networking Set Up and Operation Guide.