root@1604:~# kinit administrator
Password for administrator@TEST.JP:
root@1604:~# net ads join -U administrator
Enter administrator's password:
Using short domain name -- TEST
Joined '1604' to dns domain 'test.jp'
No DNS domain configured for 1604. Unable to perform DNS Update.
DNS update failed: NT_STATUS_INVALID_PARAMETER
root@1604:~# systemctl restart winbind
root@1604:~# wbinfo -u
TEST\guest
TEST\administrator
TEST\krbtgt
TEST\chibi
root@1604:~# wbinfo -n chibi
S-1-5-21-995094434-2370853644-3769685270-1103 SID_USER (1)
root@1604:~# net ads info
LDAP server: 192.168.1.25
LDAP server name: dc1.test.jp
Realm: TEST.JP
Bind Path: dc=TEST,dc=JP
LDAP port: 389
Server time: 木, 14  1月 2021 08:08:33 JST
KDC server: 192.168.1.25
Server time offset: -2
root@1604:~# host -4 dc
dc.test.jp has address 192.168.1.22
dc.test.jp has address 192.168.1.28
dc.test.jp has IPv6 address 2400:4052:46e0:b700:15dc:bd6:5817:24fc
dc.test.jp has IPv6 address 2400:4052:46e0:b700:b462:ad0e:dd8c:96f4
root@1604:~# host -4 dc1
dc1.test.jp has address 192.168.1.25
dc1.test.jp has IPv6 address 2400:4052:46e0:b700:c0ac:f44c:e63:2b0
root@1604:~# host -4 dc2
dc2.test.jp has address 192.168.1.27
dc2.test.jp has IPv6 address 2400:4052:46e0:b700:250f:3df1:1c43:8fcd
root@1604:~# host -t SRV _ldap._tcp.test.jp
_ldap._tcp.test.jp has SRV record 0 100 389 dc2.test.jp.
_ldap._tcp.test.jp has SRV record 0 100 389 dc.test.jp.
_ldap._tcp.test.jp has SRV record 0 100 389 dc1.test.jp.
root@1604:~# host -t SRV _kerberos._udp.test.jp
_kerberos._udp.test.jp has SRV record 0 100 88 dc2.test.jp.
_kerberos._udp.test.jp has SRV record 0 100 88 dc.test.jp.
_kerberos._udp.test.jp has SRV record 0 100 88 dc1.test.jp.
root@1604:~# host -t A test.jp
test.jp has address 192.168.1.22
test.jp has address 192.168.1.27
test.jp has address 192.168.1.28
test.jp has address 192.168.1.25
root@1604:~# cat /etc/os-release
NAME="Ubuntu"
VERSION="16.04.7 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.7 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial
root@1604:~# samba -V
Version 4.3.11-Ubuntu
root@1604:~# smbclient -L localhost -U%
Domain=[TEST] OS=[Windows 6.1] Server=[Samba 4.3.11-Ubuntu]

        Sharename       Type      Comment
        ---------       ----      -------
        netlogon        Disk
        sysvol          Disk
        IPC$            IPC       IPC Service (Samba 4.3.11-Ubuntu)
        print$          Disk      Printer Drivers
Domain=[TEST] OS=[Windows 6.1] Server=[Samba 4.3.11-Ubuntu]

        Server               Comment
        ---------            -------

        Workgroup            Master
        ---------            -------
        WORKGROUP            PC1

root@1604:~# net ads lookup
Information for Domain Controller: 192.168.1.25

Response Type: LOGON_SAM_LOGON_RESPONSE_EX
GUID: c8e0ec6a-8685-4987-934d-94b20f0e089e
Flags:
        Is a PDC:                                   no
        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:                       no
        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:      dc1.test.jp
Pre-Win2k Domain:       TEST
Pre-Win2k Hostname:     DC1
Server Site Name :              Default-First-Site-Name
Client Site Name :              Default-First-Site-Name
NT Version: 5
LMNT Token: ffff
LM20 Token: ffff
root@1604:~# dig test.j

; <<>> DiG 9.10.3-P4-Ubuntu <<>> test.j
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 23975
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.                       900     IN      SOA     a.root-servers.net. nstld.verisign-grs.com. 2021011301 1800 900 604800 86400

;; Query time: 33 msec
;; SERVER: 192.168.1.22#53(192.168.1.22)
;; WHEN: Thu Jan 14 08:13:58 JST 2021
;; MSG SIZE  rcvd: 110

root@1604:~# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrator@TEST.JP

Valid starting       Expires              Service principal
2021-01-14T08:07:36  2021-01-14T18:07:36  krbtgt/TEST.JP@TEST.JP
        renew until 2021-01-15T08:07:31
root@1604:~# wbinfo -t
checking the trust secret for domain TEST via RPC calls succeeded
root@1604:~# wbinfo -g
TEST\domain computers
TEST\cert publishers
TEST\domain users
TEST\domain guests
TEST\ras and ias servers
TEST\domain admins
TEST\schema admins
TEST\enterprise admins
TEST\group policy creator owners
TEST\allowed rodc password replication group
TEST\denied rodc password replication group
TEST\enterprise read-only domain controllers
TEST\cloneable domain controllers
TEST\protected users
TEST\enterprise key admins
TEST\key admins
TEST\read-only domain controllers
TEST\domain controllers
TEST\dnsadmins
TEST\dnsupdateproxy
root@1604:~#