We have several linux computers (with different distributions) in a samba4 domain. All computers are domain members and the domain users can login to the different machines via pam and winbind3/4. A user that is authenticated on one machine automatically receives a kerberos ticket and can login via ssh to another machine using this kerberos ticket. This setup works fine for some weeks until the ssh server logs this error debug1: userauth-request for user feurleda service ssh-connection method gssapi-with-mic [preauth] debug1: attempt 1 failures 0 [preauth] Postponed gssapi-with-mic for feurleda from 10.0.1.73 port 33142 ssh2 [preauth] debug1: Unspecified GSS failure. Minor code may provide more information Wrong principal in request to make the ssh login via kerberos work again I need to issue the following command net ads keytab create -U Administrator after issuing this it works again for some days/weeks. How can I fix this problem what is it that I am missing? Best regards, David Feurle -- sodge IT GmbH Adlerstra?e 5 72336 Balingen Mail: david.feurle at sodgeit.de Mobil: +49-176-64616031 URL: http://www.sodgeit.de Telefon: +49-7433-95 59 28 4 Telefon: +49-7433-27 52 36 Fax: +49-7433-51 32 --- Sitz der Gesellschaft: Balingen Registergericht: Amtsgericht Stuttgart HRB 740109 Gesch?ftsf?hrer: Matthias Ehinger / David Feurle / G?tz Martinek