Hello all. Still no luck with UPN logon. I think there's something missing in my krb5.conf, but can't find WHAT. Our UPNs are in the form of email addresses (name.surnameX at unibo.it for people in PERSONALE and name.surnameX at studio.unibo.it for people in STUDENTI domain). I never could make logon-by-upn work, but SOMETIMES "wbinfo -n UPN" resolves to the right SID (stopped working after an upgrade). I usually only keep winbindd running, no smbd/nmbd (the PCs are in a lab and only need samba to authenticate users on AD keeping consistent UID/GID, and grant access to shared resources via Kerberos). Is there something obvious I'm missing? TIA. -- Diego Zuccato Servizi Informatici Dip. di Astronomia - Universit? di Bologna Via Ranzani, 1 - 40126 Bologna - Italy tel.: +39 051 20 95786 mail: diego.zuccato at unibo.it