[Samba] Winbind active directory without domain join

[Shyam Prasad N]

Hi all,

I'm wondering if I can use winbind services without having to domain
join the active directory?
i.e. to login as AD users (with the help of pam-winbind) and to map
UID/GID to SID and back (using wbclient.h).

Searching on the internet leads me to believe that domain join is
mandatory to avail these services, but no conclusive answer.
I Wanted to confirm the same.

-- 
Regards,
Shyam