[Freeipa-users] FreeIPA and FQDN requirements

[Nordgren, Bryce L -FS]

> Assume that FQDN is constructed as static hostname.domainname from
> DHCP or via reverse DNS lookup. What happens if the machine (laptop)
> moves from one network to another? What if the machine have multiple
> interfaces?
>
> As a result, any change in FQDN will break your Kerberos setup.

The machine's host keytab (/etc/krb5.keytab) retains a reference to whatever principal was used when the host was added to ipa. The Kerberos setup shouldn't break unless:

A] You can't contact your KDC because a firewall's in the way.
B] The KDC moved and DNS has not caught up.






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