What are my options if I want to turn on security with a non-root server ID in a UNIX environment?

When running WebSphere Application Server as non-root, if global security is enabled, the user registry must be either LDAP or a custom registry.

To use the Local OS user registry, the user under which the product processes run must have the root privilege. This privilege is needed to call the UNIX operating system APIs to authenticate or to collect user and group information. The process needs special authority, which is given by the root privilege. Using the Local OS user registry requires the node agent, the deployment manager, and the application server process to run as root.