Rule Writing Guidelines › Command Limiting and CP Special Considerations

Command Limiting and CP Special Considerations

VM logon IDs can affect command limiting and CP command processing. As a general rule, do not assign user IDs that can be mistaken for a CP command or command operands. Do not assign a user ID of one to four numeric characters that could be interpreted by CP as a spool ID instead of a user ID. For example, a user ID of READER could be interpreted literally by CP as the reader queue or someone named Reader. So if a user wanted to see if READER was logged on, he would enter Q READER. However, instead of responding with information about the user ID, CP checks the reader queue of the user who issued the command.

Also be aware that you can command limit the ACFSERVE QUERY STATUS command. This command limiting prevents users from executing CA ACF2 for z/ VM reports, utilities, or the ACF command. If you command limit this ACFSERVE command, be sure to give responsible individuals the authority they need to perform their tasks.