[Samba] samba 4 in AD 2008R2 without winbind

[Daniele Bernazzi]

Hi all, my goal is to have samba (ubuntu 16.04 samba 4.3.11) validating internal user (just the user presents on /etc/passwd) on an existing AD 2008R2. I am making a fresh install and I did it using winbind, but this component puzzle me with id mapping, so I am trying to avoid the use of winbind.
Unfortunately, when I stop winbind I got always NT_STATUS_NO_LOGON_SERVERS; it seems like samba is not able to reach the PDC; digging with tcpdump shows the usage of only port 445 by samba, while winbind use also 135 and 88 ...
Any clue?
thank you.

Daniele Bernazzi