How to fill 'owner' computer field?

Hi,

I have installed OCSNG UNIX SERVER and about 30 UNIX agents.

I can see a table of all computers information In the web page server management.

I can Select columns to show/hide.

I have selected 'owner' but is empty in all computers.

What is the procedure to fill this field? Could be filling something in the client computer?

Thanks in advance.