I've been working on setting up a Kerberized NFS server today and have it working. One niggly issue is that the kerberos tickets are not persisting after a reboot. Meaning I have to get a kerberos ticket manually before I can mount and access the shares. Add it to /etc/fstab reboot and it doesn't auto mount the share without me generating another kerberos ticket by hand. --- Overnight I rebooted the client, server and IPA sever and this morning everything is mounting automatically. So it works!