UNIX or Linux® File Access

The effective User ID and Group ID for a process determine the directories, files, or mount points that can be accessed. By default, the user that creates a file has read and write privileges; any other group or user has read privileges only.

Filemode Parameter

You may want files created by the Server to be available to other users to run the same job and overlay the same file. The filemode parameter in pstserv.cfg allows you to grant file access to other users. The filemode parameter changes the default file mode for any file created by the Server and allows you to limit read or write privileges for a user, group, or other.

Daemon Startup Directory

A directory created during the daemon startup tracks the daemon system-wide, so that you can shut the daemon down from a different process. This directory includes a file for each daemon started. (In production environments, there is usually one file.)

The default creates an “rt4s” subdirectory under the system “tmp” directory. However, the daemon is often run under a “fenced” user that does not have privileges in the tmp directory. To overcome this, you can set the PSTINFO environment variable before starting the daemon. Specify the complete path to a directory to which the user starting the daemon can write. In general, you must pre-create the directory to give it specific user rights.