Security services are provided for your publish/subscribe domain.
Access to messages on particular topics is controlled using access control lists (ACLs).
An authentication protocol is used by a broker and a client application to confirm that they are both valid participants in a session.
Message protection provides security options to prevent messages from being read or modified while in transit.
These services operate independently of each other, but before you can use any of these services, you must create a User Name Server and include it in your domain.
To use one of these services, use the mqsicreatebroker or mqsichangebroker command to configure a broker with the -s parameter to specify the name of the queue manager that hosts the User Name Server.
In addition, to use topic-based security, specify the publish/subscribe access control flag (-j parameter) on the mqsicreatebroker or mqsichangebroker command.