Operator commands for automatic logon

You can establish an automatic logon session using the VARY LOGON command. After the automatic logon is established, it remains until one of the following conditions occurs:

The major node of one of the session partners is deactivated.
The primary logical unit is changed using the VARY LOGON or VARY ACT,LOGON command. If the primary logical unit is a USERVAR name, the session setup requests can be rerouted to a different primary logical unit by using the MODIFY USERVAR command.
The automatic logon is deleted using the VARY NOLOGON command.

Note:

You can view the automatic logon relationship of an LU with the DISPLAY ID=sluname command.
You can view automatic logon relationships by controlling application name using the DISPLAY AUTOLOG,ID=controlling_application name command. This display shows only LUs that are session capable and not currently in session with their controlling application. This display also shows the events that can recover the controlling sessions.
The VARY AUTOLOG command can be used to attempt recovery of the controlling sessions.
See z/OS Communications Server: SNA Operation for more details on using the DISPLAY AUTOLOG and VARY AUTOLOG operator commands.