[Samba] How to verify connectivity between AD and unix client properly?

[Elias Pereira]

hello,

We have some computers with ubuntu that are in the domain. They are
configured through a package called C.I.D because it saves configuration
time.

When removing the unix client directly via RSAT, I still get ping via
wbinfo --ping-dc and also wbinfo -u returns me the users of the domain.

How can I check the connectivity between a linux client and AD properly?

-- 
Elias Pereira