z/OS UNIX Analysis › About UNIX Analysis › UNIX Configuration Change Detection

UNIX Configuration Change Detection

Run the 9.1.1, 9.1.2, 9.1.3, 9.1.4, and 9.1.5 z/OS UNIX analysis functions at IPL and record the results for later use to ascertain whether any of the options have been altered.

z/OS UNIX options can be changed after IPL by use of the:

• SET OMVS command to designate a different BPXPRMxx member is used for z/OS UNIX configuration options
• SET OMVS command to designate that a specific BPXPRMxx option should be immediately changed
• OMVS MOUNT command to mount and dismount file systems

To detect if z/OS UNIX configuration options have changed use the z/OS UNIX Summary Analysis function (9.1.1) to determine if the BPXPRMxx members in use differ from the at-IPL members previously identified.

A change infers that someone issued a SET OMVS=xx command to alter the BPXPRMxx member. If this has been done:

• Search the system log for this command
• If your installation is securing the MVS OPERCMDS resource class, query the ESM’s security logging records