каков результат вывода команды testparm
# testparm
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[share]"
Loaded services file OK.
WARNING: The setting 'security=ads' should NOT be combined with the 'password server' parameter.
(by default Samba will discover the correct DC to contact automatically).
Server role: ROLE_DOMAIN_MEMBER
Press enter to see a dump of your service definitions
Странно, но в мануалах параметр Security должен быть именно ADS.
Если ставлю AUTO, картинка такая
# testparm
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[share]"
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions
# service smbd start
service: smbd: Unrecognized service