opensuse:~ # kinit administrator
Password for administrator@TEST.JP:
opensuse:~ # net ads join -U administrator
Enter administrator's password:
Using short domain name -- TEST
Joined 'OPENSUSE' to dns domain 'test.jp'
No DNS domain configured for opensuse. Unable to perform DNS Update.
DNS update failed: NT_STATUS_INVALID_PARAMETER
opensuse:~ # systemctl restart winbind
opensuse:~ # wbinfo -u
TEST\administrator
TEST\guest
TEST\krbtgt
TEST\chibi
opensuse:~ # wbinfo -n chibi
S-1-5-21-4252828235-1945649609-3318306072-1103 SID_USER (1)
opensuse:~ # net ads info
LDAP server: 192.168.1.28
LDAP server name: dc.test.jp
Realm: TEST.JP
Bind Path: dc=TEST,dc=JP
LDAP port: 389
Server time: Mon, 07 Sep 2020 07:46:03 JST
KDC server: 192.168.1.28
Server time offset: -1
Last machine account password change: Mon, 07 Sep 2020 07:41:04 JST
opensuse:~ # host -4 dc
dc.test.jp has address 192.168.1.27
dc.test.jp has address 192.168.1.28
dc.test.jp has IPv6 address 2400:4052:46e0:b700:5021:a5ac:5882:f185
dc.test.jp has IPv6 address 2400:4052:46e0:b700:4975:1828:7465:84aa
opensuse:~ # host -t SRV _ldap._tcp.test.jp
_ldap._tcp.test.jp has SRV record 0 100 389 dc.test.jp.
opensuse:~ # host -t SRV _kerberos._udp.test.jp
_kerberos._udp.test.jp has SRV record 0 100 88 dc.test.jp.
opensuse:~ # host -t A dc.test.jp
dc.test.jp has address 192.168.1.27
dc.test.jp has address 192.168.1.28
opensuse:~ # smbclient -L localhost -U%
do_connect: Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)
opensuse:~ # smbclient -L localhost -U%
do_connect: Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)
opensuse:~ # smbclient -L 192.168.1.27 -U%

        Sharename       Type      Comment
        ---------       ----      -------
SMB1 disabled -- no workgroup available
opensuse:~ # smbclient //192.168.1.27/netlogon -Uadministrator
Enter TEST\administrator's password:
Try "help" to get a list of possible commands.
smb: \> ls
  .                                   D        0  Sun Sep  6 14:00:34 2020
  ..                                  D        0  Sun Sep  6 14:00:34 2020

                124869119 blocks of size 4096. 119051303 blocks available
smb: \> exit
opensuse:~ # smbclient //192.168.1.27/sysvol -Uadministrator
Enter TEST\administrator's password:
Try "help" to get a list of possible commands.
smb: \> ls
  .                                   D        0  Sun Sep  6 14:00:34 2020
  ..                                  D        0  Sun Sep  6 14:00:34 2020
  test.jp                            Dr        0  Sun Sep  6 14:00:34 2020

                124869119 blocks of size 4096. 119051012 blocks available
smb: \> exit
opensuse:~ # cat /etc/os-release
NAME="openSUSE Tumbleweed"
# VERSION="20200905"
ID="opensuse-tumbleweed"
ID_LIKE="opensuse suse"
VERSION_ID="20200905"
PRETTY_NAME="openSUSE Tumbleweed"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:tumbleweed:20200905"
BUG_REPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://www.opensuse.org/"
LOGO="distributor-logo"
opensuse:~ # samba -V
Version 4.12.5-git.168.88cc07e6cbfSUSE-oS15.5-x86_64
opensuse:~ # net ads lookup
Information for Domain Controller: 192.168.1.28

Response Type: LOGON_SAM_LOGON_RESPONSE_EX
GUID: afb28d02-8fbc-40b1-9f73-c6d23cce32bb
Flags:
        Is a PDC:                                   yes
        Is a GC of the forest:                      yes
        Is an LDAP server:                          yes
        Supports DS:                                yes
        Is running a KDC:                           yes
        Is running time services:                   yes
        Is the closest DC:                          yes
        Is writable:                                yes
        Has a hardware clock:                       yes
        Is a non-domain NC serviced by LDAP server: no
        Is NT6 DC that has some secrets:            no
        Is NT6 DC that has all secrets:             yes
        Runs Active Directory Web Services:         yes
        Runs on Windows 2012 or later:              yes
Forest: test.jp
Domain: test.jp
Domain Controller: dc.test.jp
Pre-Win2k Domain: TEST
Pre-Win2k Hostname: DC
Server Site Name: Default-First-Site-Name
Client Site Name: Default-First-Site-Name
NT Version: 5
LMNT Token: ffff
LM20 Token: ffff
opensuse:~ # dig test.jp

; <<>> DiG 9.16.6 <<>> test.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58355
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;test.jp.                       IN      A

;; ANSWER SECTION:
test.jp.                600     IN      A       192.168.1.27
test.jp.                600     IN      A       192.168.1.28

;; Query time: 0 msec
;; SERVER: 192.168.1.27#53(192.168.1.27)
;; WHEN: Mon Sep 07 07:49:57 JST 2020
;; MSG SIZE  rcvd: 68

opensuse:~ # klist
Ticket cache: DIR::/run/user/0/krb5cc/tkt
Default principal: administrator@TEST.JP

Valid starting     Expires            Service principal
09/07/20 07:40:35  09/07/20 17:40:35  krbtgt/TEST.JP@TEST.JP
        renew until 09/08/20 07:40:29
opensuse:~ # wbinfo -t
checking the trust secret for domain TEST via RPC calls succeeded
opensuse:~ # wbinfo -g
TEST\domain computers
TEST\domain controllers
TEST\schema admins
TEST\enterprise admins
TEST\cert publishers
TEST\domain admins
TEST\domain users
TEST\domain guests
TEST\group policy creator owners
TEST\ras and ias servers
TEST\allowed rodc password replication group
TEST\denied rodc password replication group
TEST\read-only domain controllers
TEST\enterprise read-only domain controllers
TEST\cloneable domain controllers
TEST\protected users
TEST\key admins
TEST\enterprise key admins
TEST\dnsadmins
TEST\dnsupdateproxy
opensuse:~ #