An operating system account is required to install, administer, and start the environment. It is also required by certain application components that start terminal sessions. You can use the same operating system account in both cases or you can choose to use a separate account for each. It is recommended that the account should not be the root account (for security reasons) and that it should be created specifically to support the environment. All administrative YAB processes (yab update, yab start, yab stop, and so on) should be run as the user who executed the installation.

If you assign a separate account for the application components, that account must be granted read, write, and execute permissions on the following directories:

This account and any account that needs to start an application session (for example, a character client session) also require read and write permission on all of the files in the databases directory.