[SSSD-users] Multiple Active Directory Domain Controllers - what if one is down ...

In testing using "realm join" to join an Active Directory domain with two domain
controllers, we ran into a problem where "realm join" would fail when one of the
two Domain Controllers were down.    It looks like in a common case where nslookup shows
two entries for myrealm.ad.test but the first one is down (can't ping it), that realmd
doesn't try the second one automatically - but rather fails the 'realm join'