Samba : Samba AD DC : Join in Existing Domain2018/06/27 |
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Add Samba DC in Existing Windows AD Domain.
This example is based on the environment like follows.
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| [1] | Get Doman Administrator's Kerberos Ticket and so on. |
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root@smb:~#
apt -y install krb5-user
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
root@smb:~#
systemctl stop systemd-resolved root@smb:~# systemctl disable systemd-resolved Removed /etc/systemd/system/samba-ad-dc.service. # remove link of resolv.conf and create new one root@smb:~# ll /etc/resolv.conf lrwxrwxrwx 1 root root 39 Apr 27 10:30 /etc/resolv.conf -> ../run/systemd/resolve/stub-resolv.conf root@smb:~# rm /etc/resolv.conf
root@smb:~#
vi /etc/resolv.conf # change DNS setting to refer to AD (replace the domain name to your own one) domain srv.world nameserver 10.0.0.100
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 20:52:11 06/28/2018 06:52:11 krbtgt/SRV.WORLD@SRV.WORLD
renew until 06/28/2018 20:52:07
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| [2] | Add Samba DC to existing AD. |
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# rename or remove default config root@smb:~# mv /etc/samba/smb.conf /etc/samba/smb.conf.org 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=DLP,OU=Domain Controllers,DC=srv,DC=world Adding CN=DLP,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=srv,DC=world Adding CN=NTDS Settings,CN=DLP,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=srv,DC=world Adding SPNs to CN=DLP,OU=Domain Controllers,DC=srv,DC=world Setting account password for DLP$ Enabling account Calling bare provision Looking up IPv4 addresses Looking up IPv6 addresses No IPv6 address will be assigned Setting up share.ldb 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 A Kerberos configuration suitable for Samba AD has been generated at /var/lib/samba/private/krb5.conf Provision OK for domain DN DC=srv,DC=world Starting replication Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[402/1438] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[804/1438] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[1206/1438] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[1608/1438] linked_values[0/0] Schema-DN[CN=Schema,CN=Configuration,DC=srv,DC=world] objects[1743/1438] linked_values[0/0] Analyze and apply schema objects Partition[CN=Configuration,DC=srv,DC=world] objects[402/2159] linked_values[0/39] Partition[CN=Configuration,DC=srv,DC=world] objects[804/2159] linked_values[0/39] Partition[CN=Configuration,DC=srv,DC=world] objects[1206/2159] linked_values[0/39] Partition[CN=Configuration,DC=srv,DC=world] objects[1608/2159] linked_values[0/39] Partition[CN=Configuration,DC=srv,DC=world] objects[1776/2159] linked_values[39/39] Replicating critical objects from the base DN of the domain Partition[DC=srv,DC=world] objects[110/110] linked_values[25/28] Partition[DC=srv,DC=world] objects[381/4798] 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[36/36] linked_values[0/0] Replicating DC=ForestDnsZones,DC=srv,DC=world Partition[DC=ForestDnsZones,DC=srv,DC=world] objects[19/19] 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 DLP.srv.world Adding DNS A record DLP.srv.world for IPv4 IP: 10.0.0.30 Adding DNS CNAME record e856365c-3f62-4774-b8a8-0c8b06d566c7._msdcs.srv.world for DLP.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[1/36] 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 DCroot@smb:~# systemctl stop smbd nmbd winbind root@smb:~# systemctl disable smbd nmbd winbind root@smb:~# systemctl unmask samba-ad-dc Removed /etc/systemd/system/samba-ad-dc.service. # 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 20:54:35 2018
.. D 0 Wed Jun 27 20:54:35 2018
29832064 blocks of size 1024. 26234432 blocks available
# verify replication status with AD root@smb:~# samba-tool drs showrepl
Default-First-Site-Name\DLP
DSA Options: 0x00000001
DSA object GUID: e856365c-3f62-4774-b8a8-0c8b06d566c7
DSA invocationId: 6c2f7dda-a93e-4158-9b8b-3a494863c3d9
==== INBOUND NEIGHBORS ====
DC=DomainDnsZones,DC=srv,DC=world
Default-First-Site-Name\SMB via RPC
DSA object GUID: ab920914-1b88-4df9-9146-f2d13d04830e
Last attempt @ NTTIME(0) was successful
0 consecutive failure(s).
Last success @ NTTIME(0)
.....
.....
==== KCC CONNECTION OBJECTS ====
Connection --
Connection name: 465f7e2b-02ab-4d47-8265-9e5a7388ddd2
Enabled : TRUE
Server DNS name : smb.srv.world
Server DN name : CN=NTDS Settings,CN=SMB,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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