Decide which OS user account will be assigned the instance administrator role. You can assign it to a new user or to an existing one, but you cannot assign it to the OS superuser (root).
When operating with WebAdmin, if you change the password for the OS user account, use ALTER ROLE WITH PASSWORD to change the instance administrator password as well.
The following example shows an OS user account with the name "fsepuser" being assigned the instance administrator role.
# useradd fsepuser # passwd fsepuser
