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Johannes Amorosa | Celluloid VFX

2015-Mar-27 12:14 UTC

[Samba] Replication error after trying to sync sysvol

I tried to synchronize the sysvol folders, on two dcs. Something went 
wrong since yesterday we have replication problems:
One machine shows this, while the other one is happy.

samba-tool drs showrepl

==== INBOUND NEIGHBORS ===
DC=DomainDnsZones,DC=ourdomain,DC=com
     Default-First-Site-Name\DC03 via RPC
         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
         Last attempt @ Fri Mar 27 12:58:42 2015 CET failed, result 121 
(WERR_SEM_TIMEOUT)
         126 consecutive failure(s).
         Last success @ Fri Mar 27 03:40:24 2015 CET

DC=ForestDnsZones,DC=ourdomain,DC=com
     Default-First-Site-Name\DC04 via RPC
         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
         Last attempt @ Fri Mar 27 12:51:41 2015 CET failed, result 121 
(WERR_SEM_TIMEOUT)
         102 consecutive failure(s).
         Last success @ Fri Mar 27 03:40:24 2015 CET

DC=ourdomain,DC=com
     Default-First-Site-Name\DC03 via RPC
         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
         Last attempt @ Fri Mar 27 12:57:42 2015 CET failed, result 121 
(WERR_SEM_TIMEOUT)
         106 consecutive failure(s).
         Last success @ Fri Mar 27 03:40:25 2015 CET

CN=Configuration,DC=ourdomain,DC=com
     Default-First-Site-Name\DC03 via RPC
         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
         Last attempt @ Fri Mar 27 12:53:41 2015 CET failed, result 121 
(WERR_SEM_TIMEOUT)
         102 consecutive failure(s).
         Last success @ Fri Mar 27 03:40:26 2015 CET

CN=Schema,CN=Configuration,DC=ourdomain,DC=com
     Default-First-Site-Name\DC03 via RPC
         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
         Last attempt @ Fri Mar 27 12:54:41 2015 CET failed, result 121 
(WERR_SEM_TIMEOUT)
         102 consecutive failure(s).
         Last success @ Fri Mar 27 03:40:28 2015 CET
<snip>

Every service still seems to work - but we're quite nervous - this is a 
production system(lesson learned!).

I tried to force sync
samba-tool drs replicate --full-sync DC04 DC03 dc=ourdomain,dc=com
ERROR(<class 'samba.drs_utils.drsException'>): DsReplicaSync
failed -
drsException: DsReplicaSync failed (-1073741643, 'NT_STATUS_IO_TIMEOUT')

Or setup:
sernet-samba                             99:4.1.17-10

[global]
     workgroup = OURDOMAIN
     realm = OURDOMAIN.COM
     netbios name = DC04
     log level = 3

     server role = active directory domain controller
     dns forwarder = 192.168.1.254
<snip>

Ubuntu 12.04

How can I fix this. Any help is highly appreciated.
Joe

-- 
Johannes Amorosa | Celluloid VFX

Johannes Amorosa | Celluloid VFX

2015-Mar-27 13:12 UTC

head link

[Samba] Replication error after trying to sync sysvol

Found the problem. There is a DNS Problem on one machine. This happend 
because I was testing some samba AD settings in a virtual machine,
without knowing that NAT isn't shielding this properly - this vm 
propagated the "new" IP to one of the dcs.

DC04> ping DC03
gives wrong IP!

This should be fixable with the samba-tool dns update?


On 03/27/2015 01:14 PM, Johannes Amorosa | Celluloid VFX
wrote:> I tried to synchronize the sysvol folders, on two dcs. Something went 
> wrong since yesterday we have replication problems:
> One machine shows this, while the other one is happy.
>
> samba-tool drs showrepl
>
> ==== INBOUND NEIGHBORS ===>
> DC=DomainDnsZones,DC=ourdomain,DC=com
>     Default-First-Site-Name\DC03 via RPC
>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>         Last attempt @ Fri Mar 27 12:58:42 2015 CET failed, result 121 
> (WERR_SEM_TIMEOUT)
>         126 consecutive failure(s).
>         Last success @ Fri Mar 27 03:40:24 2015 CET
>
> DC=ForestDnsZones,DC=ourdomain,DC=com
>     Default-First-Site-Name\DC04 via RPC
>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>         Last attempt @ Fri Mar 27 12:51:41 2015 CET failed, result 121 
> (WERR_SEM_TIMEOUT)
>         102 consecutive failure(s).
>         Last success @ Fri Mar 27 03:40:24 2015 CET
>
> DC=ourdomain,DC=com
>     Default-First-Site-Name\DC03 via RPC
>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>         Last attempt @ Fri Mar 27 12:57:42 2015 CET failed, result 121 
> (WERR_SEM_TIMEOUT)
>         106 consecutive failure(s).
>         Last success @ Fri Mar 27 03:40:25 2015 CET
>
> CN=Configuration,DC=ourdomain,DC=com
>     Default-First-Site-Name\DC03 via RPC
>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>         Last attempt @ Fri Mar 27 12:53:41 2015 CET failed, result 121 
> (WERR_SEM_TIMEOUT)
>         102 consecutive failure(s).
>         Last success @ Fri Mar 27 03:40:26 2015 CET
>
> CN=Schema,CN=Configuration,DC=ourdomain,DC=com
>     Default-First-Site-Name\DC03 via RPC
>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>         Last attempt @ Fri Mar 27 12:54:41 2015 CET failed, result 121 
> (WERR_SEM_TIMEOUT)
>         102 consecutive failure(s).
>         Last success @ Fri Mar 27 03:40:28 2015 CET
> <snip>
>
> Every service still seems to work - but we're quite nervous - this is 
> a production system(lesson learned!).
>
> I tried to force sync
> samba-tool drs replicate --full-sync DC04 DC03 dc=ourdomain,dc=com
> ERROR(<class 'samba.drs_utils.drsException'>): DsReplicaSync
failed -
> drsException: DsReplicaSync failed (-1073741643,
'NT_STATUS_IO_TIMEOUT')
>
> Or setup:
> sernet-samba                             99:4.1.17-10
>
> [global]
>     workgroup = OURDOMAIN
>     realm = OURDOMAIN.COM
>     netbios name = DC04
>     log level = 3
>
>     server role = active directory domain controller
>     dns forwarder = 192.168.1.254
> <snip>
>
> Ubuntu 12.04
>
> How can I fix this. Any help is highly appreciated.
> Joe
>
-- 
Johannes Amorosa | Celluloid VFX

Johannes Amorosa | Celluloid VFX

2015-Mar-27 13:59 UTC

head link

[Samba] Replication error after trying to sync sysvol

for the records:
samba-tool dns delete DC03 ourdomain.inc DC03 A 10.0.2.15 -U administrator

On 03/27/2015 02:12 PM, Johannes Amorosa | Celluloid VFX
wrote:> Found the problem. There is a DNS Problem on one machine. This happend 
> because I was testing some samba AD settings in a virtual machine,
> without knowing that NAT isn't shielding this properly - this vm 
> propagated the "new" IP to one of the dcs.
>
> DC04> ping DC03
> gives wrong IP!
>
> This should be fixable with the samba-tool dns update?
>
>
> On 03/27/2015 01:14 PM, Johannes Amorosa | Celluloid VFX wrote:
>> I tried to synchronize the sysvol folders, on two dcs. Something went 
>> wrong since yesterday we have replication problems:
>> One machine shows this, while the other one is happy.
>>
>> samba-tool drs showrepl
>>
>> ==== INBOUND NEIGHBORS ===>>
>> DC=DomainDnsZones,DC=ourdomain,DC=com
>>     Default-First-Site-Name\DC03 via RPC
>>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>>         Last attempt @ Fri Mar 27 12:58:42 2015 CET failed, result 
>> 121 (WERR_SEM_TIMEOUT)
>>         126 consecutive failure(s).
>>         Last success @ Fri Mar 27 03:40:24 2015 CET
>>
>> DC=ForestDnsZones,DC=ourdomain,DC=com
>>     Default-First-Site-Name\DC04 via RPC
>>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>>         Last attempt @ Fri Mar 27 12:51:41 2015 CET failed, result 
>> 121 (WERR_SEM_TIMEOUT)
>>         102 consecutive failure(s).
>>         Last success @ Fri Mar 27 03:40:24 2015 CET
>>
>> DC=ourdomain,DC=com
>>     Default-First-Site-Name\DC03 via RPC
>>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>>         Last attempt @ Fri Mar 27 12:57:42 2015 CET failed, result 
>> 121 (WERR_SEM_TIMEOUT)
>>         106 consecutive failure(s).
>>         Last success @ Fri Mar 27 03:40:25 2015 CET
>>
>> CN=Configuration,DC=ourdomain,DC=com
>>     Default-First-Site-Name\DC03 via RPC
>>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>>         Last attempt @ Fri Mar 27 12:53:41 2015 CET failed, result 
>> 121 (WERR_SEM_TIMEOUT)
>>         102 consecutive failure(s).
>>         Last success @ Fri Mar 27 03:40:26 2015 CET
>>
>> CN=Schema,CN=Configuration,DC=ourdomain,DC=com
>>     Default-First-Site-Name\DC03 via RPC
>>         DSA object GUID: af610e1a-9e3b-4cdd-a36b-c296d77a9479
>>         Last attempt @ Fri Mar 27 12:54:41 2015 CET failed, result 
>> 121 (WERR_SEM_TIMEOUT)
>>         102 consecutive failure(s).
>>         Last success @ Fri Mar 27 03:40:28 2015 CET
>> <snip>
>>
>> Every service still seems to work - but we're quite nervous - this
is
>> a production system(lesson learned!).
>>
>> I tried to force sync
>> samba-tool drs replicate --full-sync DC04 DC03 dc=ourdomain,dc=com
>> ERROR(<class 'samba.drs_utils.drsException'>):
DsReplicaSync failed -
>> drsException: DsReplicaSync failed (-1073741643,
'NT_STATUS_IO_TIMEOUT')
>>
>> Or setup:
>> sernet-samba                             99:4.1.17-10
>>
>> [global]
>>     workgroup = OURDOMAIN
>>     realm = OURDOMAIN.COM
>>     netbios name = DC04
>>     log level = 3
>>
>>     server role = active directory domain controller
>>     dns forwarder = 192.168.1.254
>> <snip>
>>
>> Ubuntu 12.04
>>
>> How can I fix this. Any help is highly appreciated.
>> Joe
>>
>
-- 
Johannes Amorosa | Celluloid VFX

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