Samba AD DC : Join in Existing AD Domain2018/06/27 |
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Add Samba DC in Existing Windows AD Domain.
This example is based on the environment like follows. And alsp Samba has been installed like the example on here.
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| [1] | Get Doman Administrator's Kerberos Ticket and so on. |
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[root@smb ~]#
yum -y install krb5-workstation
[root@smb ~]#
vi /etc/krb5.conf # change like follows (replace Realm to your own one)
[libdefaults]
default_realm = SRV.WORLD
dns_lookup_realm = false
dns_lookup_kdc = true
# change DNS setting to refer to AD (replace the interface name and AD's IP to your own one) [root@smb ~]# nmcli connection modify eth0 ipv4.dns 10.0.0.100 [root@smb ~]# nmcli connection down eth0; nmcli connection up eth0
[root@smb ~]#
[root@smb ~]# kinit administrator Password for administrator@SRV.WORLD: klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrator@SRV.WORLD
Valid starting Expires Service principal
06/27/2018 19:24:52 06/28/2018 05:24:52 krbtgt/SRV.WORLD@SRV.WORLD
renew until 06/28/2018 19:24:48
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| [2] | Add Samba DC to existing AD. |
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[root@smb ~]# samba-tool domain join srv.world DC -U "FD3S01\administrator" --dns-backend=SAMBA_INTERNAL Finding a writeable DC for domain 'srv.world' Found DC FD3S.srv.world Password for [FD3S01\administrator]: workgroup is FD3S01 realm is srv.world Adding CN=SMB,OU=Domain Controllers,DC=srv,DC=world Adding CN=SMB,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=srv,DC=world Adding CN=NTDS Settings,CN=SMB,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=srv,DC=world Adding SPNs to CN=SMB,OU=Domain Controllers,DC=srv,DC=world Setting account password for SMB$ Enabling account Calling bare provision Looking up IPv4 addresses Looking up IPv6 addresses No IPv6 address will be assigned Setting up secrets.ldb Setting up the registry Setting up the privileges database Setting up idmap db Setting up SAM db Setting up sam.ldb partitions and settings Setting up sam.ldb rootDSE Pre-loading the Samba 4 and AD schema Unable to determine the DomainSID, can not enforce uniqueness constraint on local domainSIDs A Kerberos configuration suitable for Samba AD has been generated at /etc/samba/krb5.conf Merge the contents of this file with your system krb5.conf or replace it with this one. Do not create a symlink! Provision OK for domain DN DC=srv,DC=world Starting replication Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[402/1436] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[804/1436] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[1206/1436] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[1608/1436] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[1743/1436] linked_values[0/0] Analyze and apply schema objects Partition[CN=Configuration,DC=srv,DC=world] objects[402/2141] linked_values[0/24] Partition[CN=Configuration,DC=srv,DC=world] objects[804/2141] linked_values[0/24] Partition[CN=Configuration,DC=srv,DC=world] objects[1206/2141] linked_values[0/24] Partition[CN=Configuration,DC=srv,DC=world] objects[1608/2141] linked_values[0/24] Partition[CN=Configuration,DC=srv,DC=world] objects[1766/2141] linked_values[24/24] Replicating critical objects from the base DN of the domain Partition[DC=srv,DC=world] objects[109/108] linked_values[25/28] Partition[DC=srv,DC=world] objects[376/4748] linked_values[28/28] Done with always replicated NC (base, config, schema) Replicating DC=DomainDnsZones,DC=srv,DC=world Partition[DC=DomainDnsZones,DC=srv,DC=world] objects[34/34] linked_values[0/0] Replicating DC=ForestDnsZones,DC=srv,DC=world Partition[DC=ForestDnsZones,DC=srv,DC=world] objects[18/18] linked_values[0/0] Exop on[CN=RID Manager$,CN=System,DC=srv,DC=world] objects[3] linked_values[0] Committing SAM database Adding 1 remote DNS records for SMB.srv.world Adding DNS A record SMB.srv.world for IPv4 IP: 10.0.0.33 Adding DNS CNAME record ab920914-1b88-4df9-9146-f2d13d04830e._msdcs.srv.world for SMB.srv.world All other DNS records (like _ldap SRV records) will be created samba_dnsupdate on first startup Replicating new DNS records in DC=DomainDnsZones,DC=srv,DC=world Partition[DC=DomainDnsZones,DC=srv,DC=world] objects[1/35] linked_values[0/0] Replicating new DNS records in DC=ForestDnsZones,DC=srv,DC=world Partition[DC=ForestDnsZones,DC=srv,DC=world] objects[1/19] linked_values[0/0] Sending DsReplicaUpdateRefs for all the replicated partitions Setting isSynchronized and dsServiceName Setting up secrets database Joined domain FD3S01 (SID S-1-5-21-1764851099-3332435390-390327390) as a DC
[root@smb ~]#
systemctl restart samba # verify possible authenticate with an AD user to localhost [root@smb ~]# smbclient //127.0.0.1/netlogon -U Serverworld -c 'ls'
Enter FD3S01\Serverworld's password:
. D 0 Wed Jun 27 19:50:09 2018
.. D 0 Wed Jun 27 19:50:14 2018
27245572 blocks of size 1024. 24788736 blocks available
# verify replication status with AD [root@smb ~]# samba-tool drs showrepl
Default-First-Site-Name\SMB
DSA Options: 0x00000001
DSA object GUID: ab920914-1b88-4df9-9146-f2d13d04830e
DSA invocationId: af571adc-be90-427f-8690-28aa93059b83
==== INBOUND NEIGHBORS ====
DC=DomainDnsZones,DC=srv,DC=world
Default-First-Site-Name\FD3S via RPC
DSA object GUID: 856fa301-de41-4030-bd94-99dee8a4dd99
Last attempt @ Wed Jun 27 14:32:26 2018 JST was successful
0 consecutive failure(s).
Last success @ Wed Jun 27 14:32:26 2018 JST
.....
.....
==== KCC CONNECTION OBJECTS ====
Connection --
Connection name: 5837abaa-9bcc-40be-9136-5fe27da3dab2
Enabled : TRUE
Server DNS name : FD3S.srv.world
Server DN name : CN=NTDS Settings,CN=FD3S,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=srv,DC=world
TransportType: RPC
options: 0x00000001
Warning: No NC replicated for Connection!
# for [No NC replicated for Connection!] you don't care it according to samba official site
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| [3] |
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