Thank you Dai, Your guess is absolutely correct: Right after I send the mail, I noted that... I set it the /exports (fsid=0) to sec=*sys:*krb5:krb5i:krb5p, and then I set the depending FS to the options I wanted: fixed. I even told Benjamin Coddington, out of the happines for having solved it (it was really making me go nuts), but I forgot to tell the mailing list. Sorry for that! Thank you very much, guys! Felix
