Hi Robbie,
   What is the proper way to configure an IPA host so that the sshd will use 
the FQDN?   I've noticed that IPA client installer modifies the file 
/etc/krb5.conf and adds the lines:

dns_canonicalize_hostname = false
rdns = false

If I comment out those lines then SSO works.  Alternatively I can modify the 
/etc/ssh/sshd_config file and add:

GSSAPIStrictAcceptorCheck no

That will work somewhat - as long as the client uses a FQDN.  However, either 
fix requires undoing something the IPA installer set.

Is there a security reason or something that motivates IPA to override Kerberos 
defaults and disable hostname canonicalization?
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