[Freeipa-devel] [PATCH] 888 always verify hostname

[Rob Crittenden]

When installing with DNS we skip a few hostname checks on the assumption 
that the DNS we are installing will cover things. We still need to 
verify /etc/hosts and we do this with gethostbyname_ex() which returns 
the primary name and all other names of the host. If the primary name 
doesn't match (e.g. the shortname is defined first in /etc/hosts) or it 
isn't resolvable at all then we error out.

This also prevents a chicken-and-egg error as several services need to 
start before DNS is available so the hostname must be defined.

rob
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