[Samba] Replications errors on 4.5.0 (WERR_BADFILE)

[Arthur Ramsey]

Executing the following with nsupdate seems to have fixed replication.

update add 28f7281f-3955-4885-8a7d-42a36ee87590._msdcs.mediture.dom. 900 A 192.168.222.5
show
send

update add 8b750a53-3d39-4bc0-8fe9-9bffa9e413aa._msdcs.mediture.dom. 900 A 172.16.1.106
show
send

update add fe066b13-6f9e-4f3c-beb4-37df1292b8cb._msdcs.mediture.dom. 900 A 192.168.168.65
show
send

New DNS records I create don't resolve though.

Also, I get an error when I open Active Directory Users and Computers, 
"The RPC server is unavailable".

Thanks,
Arthur

On 10/17/2016 11:44 AM, Arthur Ramsey wrote:
> I increased the debug level to 10 and found this dreplsrv_notify: 
> Failed to send DsReplicaSync to 
> fe066b13-6f9e-4f3c-beb4-37df1292b8cb._msdcs.mediture.dom for 
> DC=DomainDnsZones,DC=mediture,DC=dom - NT_STATUS_OBJECT_NAME_NOT_FOUND 
> : WERR_BADFILE.  I manually created the DNS entry, but it doesn't 
> resolve.  Other DNS records supplied by BIND_DLZ are working.  I tried 
> adding a host file entry, but that didn't see to work either.  I see 
> similar for all other DCs (different UUID values in log).
>
> When I run /usr/local/samba/sbin/samba_dnsupdate I get no error 
> messages, but I noticed it reports it isn't the master when it is.
>
> [root at dc01 ~]# samba-tool fsmo show
> SchemaMasterRole owner: CN=NTDS 
> Settings,CN=DC01,CN=Servers,CN=vsc,CN=Sites,CN=Configuration,DC=mediture,DC=dom
> InfrastructureMasterRole owner: CN=NTDS 
> Settings,CN=DC01,CN=Servers,CN=vsc,CN=Sites,CN=Configuration,DC=mediture,DC=dom
> RidAllocationMasterRole owner: CN=NTDS 
> Settings,CN=DC01,CN=Servers,CN=vsc,CN=Sites,CN=Configuration,DC=mediture,DC=dom
> PdcEmulationMasterRole owner: CN=NTDS 
> Settings,CN=DC01,CN=Servers,CN=vsc,CN=Sites,CN=Configuration,DC=mediture,DC=dom
> DomainNamingMasterRole owner: CN=NTDS 
> Settings,CN=DC01,CN=Servers,CN=vsc,CN=Sites,CN=Configuration,DC=mediture,DC=dom
> DomainDnsZonesMasterRole owner: CN=NTDS 
> Settings,CN=DC01,CN=Servers,CN=vsc,CN=Sites,CN=Configuration,DC=mediture,DC=dom
> ForestDnsZonesMasterRole owner: CN=NTDS 
> Settings,CN=DC01,CN=Servers,CN=vsc,CN=Sites,CN=Configuration,DC=mediture,DC=dom
>
> [root at dc01 ~]# /usr/local/samba/sbin/samba_dnsupdate -d 100 2>&1 | 
> grep master
> schema_fsmo_init: we are master[no] updates allowed[no]
> schema_fsmo_init: we are master[no] updates allowed[no]
>
> Thanks,
> Arthur
>
> On 10/14/2016 05:12 PM, Arthur Ramsey wrote:
>> Replication has been running smoothly until I upgraded to 4.5.0. I 
>> had various errors with all BDCs and a force sync didn't resolve it.  
>> I shutdown all BDCs, demoted them with --remove-other-dead-server 
>> then joined new BDCs with new names. At first replication was 
>> intermittently failing (consecutive failures counter kept resetting), 
>> but it seemed OK, just slow if anything. Now they all say 
>> WERR_BADFILE and I can only get the consecutive failure counter to 
>> reset with a force sync.
>>
>> I also see "The RPC server is unavailable" when trying to connect to 
>> any DC via Active Directory Users and Computers.
>>
>> I've had a ton of issues after upgrading to 4.5.0.  Could I safely 
>> upgrade?
>>
>> Thanks,
>> Arthur
>

-- 
Arthur Ramsey
System Administrator
Mediture
arthur_ramsey at mediture.com
952.400.0323


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