[root@centos6 ~]# kinit administrator
Password for administrator@TEST.JP:
[root@centos6 ~]# net ads join -U administrator
Unknown parameter encountered: "　　　　password server"
Ignoring unknown parameter "　　　　password server"
Enter administrator's password:
gss_init_sec_context failed with [Unspecified GSS failure.  Minor code may provide more information: No credentials cache found]
Using short domain name -- TEST
Joined 'CENTOS6' to dns domain 'test.jp'
kerberos_kinit_password CENTOS6$@TEST.JP failed: Client not found in Kerberos database
DNS update failed: kinit failed: Client not found in Kerberos database
[root@centos6 ~]# nano /etc/samba/smb.conf
[root@centos6 ~]# net ads join -U administrator
Unknown parameter encountered: "　　　　#password server"
Ignoring unknown parameter "　　　　#password server"
Enter administrator's password:
gss_init_sec_context failed with [Unspecified GSS failure.  Minor code may provide more information: No credentials cache found]
Using short domain name -- TEST
Joined 'CENTOS6' to dns domain 'test.jp'
No DNS domain configured for centos6. Unable to perform DNS Update.
DNS update failed: NT_STATUS_INVALID_PARAMETER
[root@centos6 ~]# service winbind restart

Winbind サービスを停止中:                                  [失敗]
Winbind サービスを起動中:                                  [  OK  ]
[root@centos6 ~]# wbinfo -u
TEST\administrator
TEST\guest
TEST\krbtgt
TEST\chibi
[root@centos6 ~]# wbinfo -n chibi
S-1-5-21-4252828235-1945649609-3318306072-1103 SID_USER (1)
[root@centos6 ~]# net ads info
Unknown parameter encountered: "　　　　#password server"
Ignoring unknown parameter "　　　　#password server"
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: 木, 17  9月 2020 19:28:51 JST
KDC server: 192.168.1.28
Server time offset: -4
[root@centos6 ~]# host -4 dc
dc.test.jp has address 192.168.1.28
dc.test.jp has address 192.168.1.27
dc.test.jp has IPv6 address 2400:4052:46e0:b700:5021:a5ac:5882:f185
dc.test.jp has IPv6 address 2400:4052:46e0:b700:5440:7997:1f70:6066
[root@centos6 ~]# host -4 dc1
dc1.test.jp has address 192.168.1.30
dc1.test.jp has IPv6 address 2400:4052:46e0:b700:79f0:d44d:dc7a:b245
[root@centos6 ~]# host -4 dc2
dc2.test.jp has address 192.168.1.53
dc2.test.jp has IPv6 address 2400:4052:46e0:b700:d9fb:4f0:1b8c:d399
[root@centos6 ~]# 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@centos6 ~]# host -t SRV _kerberos._udp.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.
_kerberos._udp.test.jp has SRV record 0 100 88 dc2.test.jp.
[root@centos6 ~]# host -t A test.jp
test.jp has address 192.168.1.30
test.jp has address 192.168.1.27
test.jp has address 192.168.1.53
test.jp has address 192.168.1.28
[root@centos6 ~]# cat /etc/redhat-release
CentOS release 6.10 (Final)
[root@centos6 ~]# smbd -V
Version 4.2.10
[root@centos6 ~]# net ads lookup
Unknown parameter encountered: "　　　　#password server"
Ignoring unknown parameter "　　　　#password server"
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
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
[root@centos6 ~]# dig test.jp

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.68.rc1.el6 <<>> test.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43359
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;test.jp.                       IN      A

;; ANSWER SECTION:
test.jp.                600     IN      A       192.168.1.27
test.jp.                600     IN      A       192.168.1.53
test.jp.                600     IN      A       192.168.1.30
test.jp.                600     IN      A       192.168.1.28

;; Query time: 2 msec
;; SERVER: 192.168.1.27#53(192.168.1.27)
;; WHEN: Thu Sep 17 19:30:55 2020
;; MSG SIZE  rcvd: 89

[root@centos6 ~]# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrator@TEST.JP

Valid starting     Expires            Service principal
09/17/20 19:25:42  09/18/20 05:25:44  krbtgt/TEST.JP@TEST.JP
        renew until 09/18/20 19:25:42
[root@centos6 ~]# wbinfo -t
checking the trust secret for domain TEST via RPC calls succeeded
[root@centos6 ~]# 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
[root@centos6 ~]#