Setting up rules for user ID with link restrictions

Products

• VM:Secure for z/VM

Issue/Introduction

What rules would I need for user ID AAAAAAA that allows it to only link to account BBBBBBB and blocks it or prevents it from linking to any other user ID?

 

Resolution

Create a user rule to allow the LINK.

In user BBBBBB's user rules you would have:

ACCEPT AAAAAAA LINK * * (or whatever link addr and mode you want).

Then, in the SYSTEM DEFAULT (note DEFAULT vs. OVERRIDE system rules) you would have: 

REJECT AAAAAAA LINK * * 

You can also issue the VMSECURE QRULES command to verify the rules put in.