On Windows platforms and UNIX platforms, use the mqsichangeusernameserver command to change various properties of the User Name Server.
On z/OS, use the mqsichangeusernameserver command to change the refresh interval and authentication properties of the User Name Server
You must stop the User Name Server, using mqsistop on Windows platforms and UNIX platforms, or stopcomponent on z/OS, (see mqsistop command) before you can issue this command.
When you restart the User Name Server, using mqsistart on Windows platforms and UNIX platforms, or startcomponent on z/OS, (see mqsistart command) it uses the changed parameters.
On UNIX systems, only the last format, username, is valid.
If you use the unqualified form for this user ID (username) in Windows, the operating system searches for the user ID throughout its domain, starting with the local system. This search might take some time to complete.
The ServiceUserID specified must be a member of the local group mqbrkrs. On Windows platforms, it can be an indirect or direct member of the group. The ServiceUserID must also be authorized to access the home directory (where WebSphere Business Integration Message Broker has been installed), and the working directory (if specified by the mqsicreateusernameserver -w flag). This ID must also be a member (either direct or indirect) of the local group mqm.
The security requirements for the ServiceUserID are detailed in Security requirements for Windows platforms for Windows platforms and in Security requirements for UNIX platforms for UNIX platforms.
This command returns the following responses:
mqsichangeusernameserver -r 2000
F MQP1UNS,cu r=2000
Related concepts
User Name Server
Related tasks
Modifying a User Name Server
Related reference
Syntax preference
mqsicreateusernameserver command
mqsideleteusernameserver command
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