Open System Services NFS Overview

3. If NULL-ALIAS-OK is TRUE, the NFS nobody client user ID (-2) is looked for in the list of OSS
NFS users as in Step 1. If the nobody user is not found, the request is rejected with an access
violation (NFSERR_ACCESS).
4. Either the NFS client user ID is present in the list of OSS NFS users or the nobody client user
ID is present. If the NFS client user ID is mapped to 65535 (the super ID) and the SERVER
attribute ROOT-USER-OK is FALSE, the request is rejected with an access violation
(NFSERR_ACCESS).
5. The request is accepted and processed.
OSS NFS ignores group IDs specified by NFS clients. OSS NFS uses the mapped NonStop user
ID to determine the mapped NonStop group ID.
18 Security Mechanisms