Before using the Command utility to manage a broker, you must do the following:
Start the broker using the imqbrokerd command. You cannot use the Command utility subcommands l until a broker is running.
Determine whether you want to set up a Message Queue administrative user or use the default account. You must specify a user name and password to use all Command utility subcommands (except to display command help and version information).
When you install Message Queue, a default flat-file user repository is installed. The repository is shipped with two default entries: an administrative user and a guest user. If you are testing Message Queue, you can use the default user name and password (admin/admin) to run the Command utility.
If you are setting up a production system, you must set up authentication and authorization for administrative users. See Chapter 9, Configuring and Managing Security Services for information on setting up a file-based user repository or configuring the use of an LDAP directory server. In a production environment, it is a good security practice to use a nondefault user name and password.
If you want to use a secure connection to the broker, set up and enable the ssladmin service on the target broker instance, For more information, see Message Encryption.