[Samba] samba idmap mystery

[d tbsky]

Rowland Penny via samba <samba at lists.samba.org> ：
> First: NEVER 'CC' ME

I am sorry. Sometimes I forget I am in the list and should not press
the  'reply all' button.

> >> Now if you did restart Samba, this should have cleared the winbind
> >> cache, unless, is nscd also running ? If it is, I suggest you remove it,
> >> you cannot have two caches.
> >
> > no I don't have nscd installed or running.
>
> Well, there must have been some form of cache somewhere.

yes. but I don't know where the cache is and how to clear it.
That's the mystery which confused me.