[Samba] Preventing winbind from crashing while KDC is unreachable

[Jeremy Allison]

On Thu, Jan 19, 2012 at 09:12:01AM +0100, Bjoern Meier wrote:
> hi,
> 
> we have here a multi-domain environment and my question is: is that a
> wanted behavior, that winbind crashed with "error looking up domain
> users" if a KDC isn't available and winbind had to be restarted to
> work again?
> We have a maintainance rotation for server an network.  So I wanted,
> that Winbind notice for itself if the one specific KDC is on again (he
> is not really down, but unreachable).

winbindd shouldn't terminate in these circumstances, just keep
probing until it can re-establish a connection.