UNIX look and feel

Using the z/OS NFS with z/OS UNIX managed files provides UNIX client users with a transparent view of their data. The file attributes are maintained in the same way as is found on any UNIX system.

Regular, directory, link, device, and FIFO file types
User, group, and other read/write/execute access permissions
UID and GID file ownership
File size

To access z/OS UNIX files, it is necessary to be defined to RACF® as an z/OS UNIX user. Some installations might prefer to provide users with unrestricted access to their z/OS UNIX data by specifying security(none) or security(exports) in the site attributes. With this setting, the client's user ID and group ID credentials are used for all file access authentication, and there is no requirement for the user to be defined to RACF or to perform the mvslogin command.

Note: For the security(none) and security(exports) options, the UID of the root (UID=0 from the workstation) is mapped to UID of NOBODY (UID=65534) by the z/OS NFS server. The implication is that the z/OS NFS server will use the mapped UID of 65534 for all z/OS UNIX file authorization checking. For example, file creation owner UID is set to 65534 in the z/OS UNIX file attribute.