User IDs used by the channel initiator

This collection of topics describes the user IDs used and checked for receiving channels and for client MQI requests issued over server-connection channels. Information is provided for TCP/IP and for LU6.2

We can use the PUTAUT parameter of the receiving channel definition to determine the type of security checking used. To get consistent security checking throughout your IBM MQ network, we can use the ONLYMCA and ALTMCA options.

We can use the DISPLAY CHSTATUS command to determine the user identifier used by the MCA.