root@server:/home/admin# net ads join -U administrator
Enter administrator's password:
Failed to join domain: failed to connect to AD: No results returned

[2017/01/18 10:29:20.937704,  5] ../source3/smbd/uid.c:425(smbd_change_to_root_user)
  change_to_root_user: now uid=(0,0) gid=(0,0)
[2017/01/18 10:29:20.937713,  3] ../source3/smbd/service.c:1148(close_cnum)
  192.168.56.135 (ipv4:192.168.56.135:42032) closed connection to service IPC$
[2017/01/18 10:29:20.937738,  4] ../source3/smbd/vfs.c:844(vfs_ChDir)
  vfs_ChDir to /
[2017/01/18 10:29:20.937759,  4] ../source3/smbd/vfs.c:855(vfs_ChDir)
  vfs_ChDir got /
[2017/01/18 10:29:20.937768,  4] ../source3/smbd/sec_ctx.c:321(set_sec_ctx_internal)
  setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
[2017/01/18 10:29:20.937776,  5] ../libcli/security/security_token.c:53(security_token_debug)
  Security token: (NULL)
[2017/01/18 10:29:20.937783,  5] ../source3/auth/token_util.c:639(debug_unix_user_token)
  UNIX token of user 0
  Primary group is 0 and contains 0 supplementary groups
[2017/01/18 10:29:20.937796,  5] ../source3/smbd/uid.c:425(smbd_change_to_root_user)
  change_to_root_user: now uid=(0,0) gid=(0,0)
[2017/01/18 10:29:20.937817,  4] ../source3/auth/pampass.c:483(smb_pam_start)
  smb_pam_start: PAM: Init user: DOMAINAdministrator
[2017/01/18 10:29:20.941624,  4] ../source3/auth/pampass.c:492(smb_pam_start)
  smb_pam_start: PAM: setting rhost to: 192.168.56.135
[2017/01/18 10:29:20.941777,  4] ../source3/auth/pampass.c:501(smb_pam_start)
  smb_pam_start: PAM: setting tty
[2017/01/18 10:29:20.941789,  4] ../source3/auth/pampass.c:509(smb_pam_start)
  smb_pam_start: PAM: Init passed for user: DOMAINAdministrator
[2017/01/18 10:29:20.941797,  4] ../source3/auth/pampass.c:646(smb_internal_pam_session)
  smb_internal_pam_session: PAM: tty set to: smb/1889038790
[2017/01/18 10:29:20.942435,  4] ../source3/auth/pampass.c:465(smb_pam_end)
  smb_pam_end: PAM: PAM_END OK.
[2017/01/18 10:29:20.942457,  4] ../source3/smbd/sec_ctx.c:321(set_sec_ctx_internal)
  setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
[2017/01/18 10:29:20.942466,  5] ../libcli/security/security_token.c:53(security_token_debug)
  Security token: (NULL)
[2017/01/18 10:29:20.942474,  5] ../source3/auth/token_util.c:639(debug_unix_user_token)
  UNIX token of user 0
  Primary group is 0 and contains 0 supplementary groups
[2017/01/18 10:29:20.942491,  5] ../source3/smbd/uid.c:425(smbd_change_to_root_user)
  change_to_root_user: now uid=(0,0) gid=(0,0)
[2017/01/18 10:29:20.943269,  3] ../source3/smbd/server_exit.c:252(exit_server_common)
  Server exit (NT_STATUS_END_OF_FILE)

[global]
    workgroup = DOMAIN
    realm = domain.local
    netbios name = SERVER-S01
    server role = active directory domain controller
    idmap_ldb:use rfc2307 = yes
    server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,winbindd, ntp_signd, kcc, dnsupdate
    #ACL support
    vfs objects = acl_xattr
    map acl inherit = yes
    store dos attributes = yes

    ######################
    winbind enum groups=yes
    winbind enum users=yes
    dns forwarder=8.8.8.8
    winbind nss info = rfc2307
    #####################

    domain logons = Yes
    domain master = Yes
    # Be a WINS server ..
    wins support = yes


    time server = Yes

    obey pam restrictions = Yes
    dns proxy = No
    os level = 65
    log file = /var/log/samba/log.%m
    max log size = 1000
    syslog = 0
    panic action = /usr/share/samba/panic-action %d
    pam password change = Yes

    unix password sync = no
    ldap passwd sync = yes

    load printers = yes
    printing = cups
    printcap name = cups
    log level = 5
    # Use LDAP for Samba user accounts and groups ..


    ## LDAP Auth
    ldap server require strong auth = no

net ads info
Failed to get server's current time!
LDAP server: XXX.XXX.XXX.XXX
LDAP server name: server-s01.domain.local
Realm: DOMAIN.LOCAL
Bind Path: dc=DOMAIN,dc=LOCAL
LDAP port: 389
Server time: Don, 01 Jan 1970 01:00:00 CET
KDC server: XXX.XXX.XXX.XXX
Server time offset: 0