Changing a Password that Has Not Expired

To change an APPC/MVS password that has not yet expired, a user can enter the COMUPASS command on the command line using the following syntax:

COMUPASS userid plualias mode_name old_password new_password

In the command text:

userid: The userid associated with the password to be changed.
plualias: The partner LU alias for the system on which the password is to be changed.
mode_name: The transmission service mode name for the partner LU.
old_password: The expired partner LU password.
new_password: The new partner LU password. The maximum length of passwords that COMUPASS will accept is ten. However, the password length must be acceptable to the partner LU security product. APPC/MVS limits the password length to eight characters.

The COMUPASS program prompts the user for parameters that are not supplied on the command invocation. Because the parameters are positional, if the user omits a parameter from the command invocation, all parameters that follow the omitted parameter must also be omitted from the command invocation.