Stopping unauthorized queue managers sending messages

Prevent unauthorized queue managers sending messages to your queue manager using a channel security exit.

Before you begin

Clustering has no effect on the way security exits work. You can restrict access to a queue manager in the same way as you would in a distributed queuing environment.

About this task

Prevent selected queue managers from sending messages to your queue manager:

1. Define a channel security exit program on the CLUSRCVR channel definition.
2. Write a program that authenticates queue managers trying to send messages on your cluster-receiver channel and denies them access if they are not authorized.

What to do next

Channel security exit programs are called at MCA initiation and termination.