DNS lookups and krb4 Support

[Ken Raeburn]

Alexandra Ellwood <lxs at MIT.EDU> writes:

> (Note that the "kerberos.REALM" DNS lookups are from a old krb4 DNS
> config that Heimdal still supports -- basically it just calls
> gethostbyname("kerberos." + REALM) and uses the result as the
> server. Obviously this only works if the kerberos server in question
> is using the default ports and if the site has control over the DNS
> domain with the same name as the realm.)

Yep, we've got the same heuristic for krb4.

I don't think we should introduce it for krb5, giving administrators
yet another excuse to fail to provide information to clients, but we
could consider it, if anyone cares...

Ken