[Samba] Problems with Login on Samba 4

[Marcio Demetrio Bacci]

I implemented Samba 4.2.2 on my network 2 weeks ago.

I created an image of Ubuntu 14.04 with the PBIS (PowerBroker Identity
Services Open

) installed and configured to include the stations in the domain. This
image was install in 250 workstations and everything was working perfectly,
but the computers didn't appear in the MS RSAT as domain members, because
we forgot to run the “domainjoin-cli join DOMAIN.COM Administrator” command.

Today many users could not log on the network. With this we run the command
"domainjoin-cli join DOMAIN.COM Administrator" and then users were able to
log on the network.

My questions are the following:

1. Why worked properly for 2 weeks without having added the stations in the
domain?

2. Only the command execution "domainjoin-cli join DOMAIN.COM
Administrator" solve the problem?

3. How do I know if my DC is healthy?


 I am very worried because my network has approximately 400 computers,
being 320 Linux.

With Windows workstations, I'm not having problems.