[Samba] Samba4 PDC keytab creation for NFSv4 not working

[steve]

>> # samba-tool domain exportkeytab /etc/krb5.keytab --principal
>> nfs/jotunheim.static.yggdrasil.bittoo.net at YGGDRASIL.BITTOO.NET -d5

Try:
samba-tool domain exportkeytab /etc/krb5.keytab 
--principal=nfs/jotunheim.static.yggdrasil.bittoo.net at YGGDRASIL.BITTOO.NET

Summary: the file server must hod the nfs/ key in the default keytab. 
The Client simply needs the MACHINE$ key in its default keytab

J