Title: #214: UTIL: Set udp_preference_limit=0 in krb5 snippet
@lslebodn, I've sent an email to sssd-devel mailing list about the test failure.
Let's keep this discussion there and, please, stop using this PR as a target of your
discontentment ... this is not the right place for that.
See the full comment at https://github.com/SSSD/sssd/pull/214#issuecomment-320981976