Problem
The join of an additional server fails witherror messages similar to (in file /var/log/univention/management-console-module-join.log):
25.06.20 10:28:39.744 MODULE ( PROCESS ) : **************************************************************************
25.06.20 10:28:39.744 MODULE ( PROCESS ) : * Running join scripts failed! *
25.06.20 10:28:39.744 MODULE ( PROCESS ) : **************************************************************************
25.06.20 10:28:39.744 MODULE ( PROCESS ) : * Message: binddn for user Administrator not found
25.06.20 10:28:39.744 MODULE ( WARN ) : Der Join-Vorgang konnte nicht durchgeführt werden:<br/><br/><i>binddn for user Administrator not found</i><br/><br/> Weitere
Informationen können in der Logdatei <i>/var/log/univention/join.log</i> gefunden werden.<br/>Bitte den Join-Vorgang nach Lösen aller Konflikte erneut durchführen.
25.06.20 10:28:39.744 MODULE ( PROCESS ) : **************************************************************************
25.06.20 10:28:39.745 MODULE ( WARN ) : stderr: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
25.06.20 10:28:39.745 MODULE ( WARN ) : Could not perform system join: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive)."
Solution
Make sure you are using the “Administrator” account for the join. Other account may not work (even if they are in the Domain Administrators group).
Additionally make sure you can log on to the UMC with the Administrator account and it’s password has not expired.