Force Samba4 Replication

This cheat sheet shows how force a Samba4 DC to replicate it's database.

Topics

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1. Check Sync


2. Force Sync




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3. Home

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Check Replication

• Check that the service is in sync (or working properly) with the samba-tool drs showrepl command

root@dc:~# samba-tool drs showrepl
Default-First-Site-Name\dc
DSA Options: 0x00000001
DSA object GUID: 5f3adec8-d34a-4d11-be12-7a87ff5252a7
DSA invocationId: fd6f9a96-51cc-4478-a67e-eb597ddac582

==== INBOUND NEIGHBORS ====

DC=ForestDnsZones,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:33:31 2014 CET failed, result 2 (WERR_BADFILE)
		1 consecutive failure(s).
		Last success @ NTTIME(0)

DC=DomainDnsZones,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:33:31 2014 CET failed, result 2 (WERR_BADFILE)
		1 consecutive failure(s).
		Last success @ NTTIME(0)

DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:33:31 2014 CET failed, result 2 (WERR_BADFILE)
		1 consecutive failure(s).
		Last success @ NTTIME(0)

CN=Schema,CN=Configuration,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:33:31 2014 CET failed, result 2 (WERR_BADFILE)
		1 consecutive failure(s).
		Last success @ NTTIME(0)

CN=Configuration,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:33:31 2014 CET failed, result 2 (WERR_BADFILE)
		1 consecutive failure(s).
		Last success @ NTTIME(0)

==== OUTBOUND NEIGHBORS ====

DC=ForestDnsZones,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:36:46 2014 CET failed, result 2 (WERR_BADFILE)
		51 consecutive failure(s).
		Last success @ NTTIME(0)

DC=DomainDnsZones,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:36:46 2014 CET failed, result 2 (WERR_BADFILE)
		51 consecutive failure(s).
		Last success @ NTTIME(0)

DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:36:46 2014 CET failed, result 2 (WERR_BADFILE)
		51 consecutive failure(s).
		Last success @ NTTIME(0)

CN=Schema,CN=Configuration,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:36:46 2014 CET failed, result 2 (WERR_BADFILE)
		51 consecutive failure(s).
		Last success @ NTTIME(0)

CN=Configuration,DC=samba,DC=blachole-networks,DC=com
	Default-First-Site-Name\DC2 via RPC
		DSA object GUID: 47261d46-c5b1-40eb-a353-0f91942dfb5c
		Last attempt @ Sun Jan  5 20:36:46 2014 CET failed, result 2 (WERR_BADFILE)
		51 consecutive failure(s).
		Last success @ NTTIME(0)

==== KCC CONNECTION OBJECTS ====

Connection --
	Connection name: c55797a0-e0b4-455a-babc-b41fef1b8859
	Enabled        : TRUE
	Server DNS name : DC2.samba.bonknet.net
	Server DN name  : CN=NTDS Settings,CN=DC2,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=samba,DC=blachole-networks,DC=com
		TransportType: RPC
		options: 0x00000001
Warning: No NC replicated for Connection!
root@dc:~# 

Force Replication

• On the box that is out of sync, run the following command: samba-tool drs replicate [options]
• Where NC is the DN of the Naming Context
• This normally takes the format of CN=Configuration,DC=<your>,DC=<fully>,DC=<qualified>,DC=<domain>,DC=<name>"

samba-tool drs replicate dc.samba.blackhole-networks.com dc2.samba.blackhole-networks.com CN=Configuration,DC=samba,DC=blackhole-networks,DC=com

Last page update 5 Jan 2014

Cheat Sheet: Force Samba4 Replication by Blackhole Networks is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

Concerning comments and/or errors, please contact The BlackHole