[Samba] Question with new Samba 4.3's Improved KCC

MORILLO Jordi J.Morillo at educationetformation.fr
Tue Dec 29 13:37:02 UTC 2015

Hi everybody,

I'm playing with the new Improved KCC of samba 4.3.X

Here is my network's topology :

-          DC : smb4dc located on Default-First-site-Name

-          DC : dc110 located on PetitQuevilly

-          DC : dc113 located on SaintEtienne

-          DC : dc120 located on Barentin

-          Etc.... (total of 15 DC)

I want smb4dc acting as a bridge head for all others sites, and all others sites DC replicating only with sm4dc (not sending anything to each others)

This is what i have done :

-          Sites and services MMC : put prefered bridgehead transport IP for smb4dc

-          Add kccsrv:samba_kcc=true on each DC configuration (smb4dc too)

-          Restart all samba

-          Sites and service MMC :

*         For each DC : manually added one connexion to smb4dc and i deleted all others generated connexions

*         For smb4dc : deleted all connexions

New Improved KCC don't create new generated connexion, that sounds good !
Samba_kcc generated graphviz sounds good too !

All my DCs (excluding smb4dc's bridgehead) have only one KCC CONNECTION OBJECTS to smb4dc, sounds good too :
Connection --
        Connection name: SMB4DC
        Enabled        : TRUE
        Server DNS name : smb4dc.pr.educationetformation.fr
        Server DN name  : CN=NTDS Settings,CN=SMB4DC,CN=Servers,CN=Default-First
                TransportType: RPC
                options: 0x00000000

BUT samba-tool showrepl is still showing a full meshed network on INBOUND and OUTBOUND NEIGHBORS :/
Is it normal ?

Thanks for all

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