Re: Active Directory Replication Problem...

Hello sam060,

Domain internal use the 10.10.10.50 as secondary DNS, not the external addresses. Also multihoming a DC, like your Main no.4, is not the best solution and should better be avoided. Why is it running in the real internet? Better you can use a forwarder on the DNS server properties in the DNS management console. So you have internally all clients using the internal DNS servers and the server 4 is the only DNS forwarding to the internet over your Broadband connection default gateway.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
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Yes I have root zone in DNS configured - DNS Server on PHDC4 is a live
DNS server responsiable for any and every query.

eg. when you will do nslookup panhealth.com
==========================================================
C:\>nslookup panhealth.com
Server: dc.blueplanet.com
Address: 192.168.1.141
Non-authoritative answer:
Name: panhealth.com
Addresses: 10.0.0.128, 10.10.10.50, 209.223.221.10, 209.223.221.11
209.223.221.12, 209.223.221.20, 209.223.221.45,
216.113.226.241, 10.0.
0.10
=========================================================
2. Yes we use AD Integrated DNS Server.

=================================================
following is the result of IPconfig /all on phdc4 (live dns server)
====================================================
C:\>ipconfig /all
Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : PHDC4
Primary DNS Suffix . . . . . . . : panhealth.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : panhealth.com
Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 3Com 3C920 Integrated Fast
Ethernet
Controller (3C905C-TX Compatible)
Physical Address. . . . . . . . . : 00-B0-D0-C3-95-51
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 209.223.221.12
Subnet Mask . . . . . . . . . . . : 255.255.255.128
Default Gateway . . . . . . . . . : 209.223.221.1
DNS Servers . . . . . . . . . . . : 209.223.221.12
209.223.221.11
216.113.226.241
Primary WINS Server . . . . . . . : 209.223.221.10
PPP adapter RAS Server (Dial In) Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.10.10.50
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 127.0.0.1
===================================================
following is the result of IPconfig /all on phdc9 (additional DC) -
second site
==================================================
C:\>ipconfig /all
Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : phdc9
Primary DNS Suffix . . . . . . . : panhealth.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : panhealth.com
Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : panhealth.com
Description . . . . . . . . . . . : Broadcom 440x 10/100
Integrated Cont
roller
Physical Address. . . . . . . . . : 00-0F-1F-57-18-43
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.0.10
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . : 10.0.0.1
DNS Servers . . . . . . . . . . . : 10.0.0.10
209.223.221.12
146.145.64.2
146.145.64.3
=====================================================
floowing is the output of DCDAG on PHDC4 (Root DC) / DNS having 4
roles
==============================================
Domain Controller Diagnosis

Performing initial setup:
Done gathering initial info.
Doing initial required tests

Testing server: LDC\PHDC4
Starting test: Connectivity
........................ PHDC4 passed test Connectivity
Doing primary tests

Testing server: LDC\PHDC4
Starting test: Replications
[Replications Check,PHDC4] A recent replication attempt
failed:
From PHDC9 to PHDC4
Naming Context:
CN=Schema,CN=Configuration,DC=panhealth,DC=com
The replication generated an error (1722):
The RPC server is unavailable.
The failure occurred at 2008-05-03 15:45.14.
The last success occurred at 2008-05-03 14:43.11.
14 failures have occurred since the last success.
[PHDC9] DsBind() failed with error 1722,
The RPC server is unavailable..
The source remains down. Please check the machine.
[Replications Check,PHDC4] A recent replication attempt
failed:
From PHDC9 to PHDC4
Naming Context: CN=Configuration,DC=panhealth,DC=com
The replication generated an error (1722):
The RPC server is unavailable.
The failure occurred at 2008-05-03 15:44.53.
The last success occurred at 2008-05-03 14:43.11.
14 failures have occurred since the last success.
The source remains down. Please check the machine.
[Replications Check,PHDC4] A recent replication attempt
failed:
From PHDC9 to PHDC4
Naming Context: DC=panhealth,DC=com
The replication generated an error (1722):
The RPC server is unavailable.
The failure occurred at 2008-05-03 15:44.32.
The last success occurred at 2008-05-03 14:43.09.
14 failures have occurred since the last success.
The source remains down. Please check the machine.
........................ PHDC4 passed test Replications
Starting test: NCSecDesc
........................ PHDC4 passed test NCSecDesc
Starting test: NetLogons
........................ PHDC4 passed test NetLogons
Starting test: Advertising
........................ PHDC4 passed test Advertising
Starting test: KnowsOfRoleHolders
........................ PHDC4 passed test
KnowsOfRoleHolders
Starting test: RidManager
........................ PHDC4 passed test RidManager
Starting test: MachineAccount
........................ PHDC4 passed test MachineAccount
Starting test: Services
........................ PHDC4 passed test Services
Starting test: ObjectsReplicated
........................ PHDC4 passed test ObjectsReplicated
Starting test: frssysvol
There are errors after the SYSVOL has been shared.
The SYSVOL can prevent the AD from starting.
........................ PHDC4 passed test frssysvol
Starting test: kccevent
........................ PHDC4 passed test kccevent
Starting test: systemlog
........................ PHDC4 passed test systemlog
Running enterprise tests on : panhealth.com
Starting test: Intersite
........................ panhealth.com passed test Intersite
Starting test: FsmoCheck
........................ panhealth.com passed test FsmoCheck
=======================================================
following is the result of REPADMIN/showreps on PHDC4 (DC/DNS)
====================================================
LDC\PHDC4
DSA Options : IS_GC
objectGuid : e46e2a07-5b4e-41e1-ac9a-53111af2679a
invocationID: d6d0dc17-93a8-4879-be8c-5c049e6d0b0a
==== INBOUND NEIGHBORS ======================================

CN=Schema,CN=Configuration,DC=panhealth,DC=com
LDC\PHDC2 via RPC
objectGuid: 5f532861-6d51-4cdc-b988-d24a1d952404
Last attempt @ 2008-05-03 15:43.50 was successful.
LDC\HERMES via RPC
objectGuid: e4cd3247-6eb8-4971-aca3-1f2d14678f58
Last attempt @ 2008-05-03 15:43.50 was successful.
EHO-ATX\PHDC9 via RPC
objectGuid: ddc96af7-9e67-4197-90a1-856e42f029bc
Last attempt @ 2008-05-03 15:45.14 failed, result 1722:
The RPC server is unavailable.
Last success @ 2008-05-03 14:43.11.
14 consecutive failure(s).
CN=Configuration,DC=panhealth,DC=com
EHO-ATX\PHDC9 via RPC
objectGuid: ddc96af7-9e67-4197-90a1-856e42f029bc
Last attempt @ 2008-05-03 15:44.53 failed, result 1722:
The RPC server is unavailable.
Last success @ 2008-05-03 14:43.11.
14 consecutive failure(s).
LDC\HERMES via RPC
objectGuid: e4cd3247-6eb8-4971-aca3-1f2d14678f58
Last attempt @ 2008-05-03 15:47.16 was successful.
LDC\PHDC2 via RPC
objectGuid: 5f532861-6d51-4cdc-b988-d24a1d952404
Last attempt @ 2008-05-03 15:51.25 was successful.
DC=panhealth,DC=com
LDC\PHDC2 via RPC
objectGuid: 5f532861-6d51-4cdc-b988-d24a1d952404
Last attempt @ 2008-05-03 15:43.08 was successful.
EHO-ATX\PHDC9 via RPC
objectGuid: ddc96af7-9e67-4197-90a1-856e42f029bc
Last attempt @ 2008-05-03 15:44.32 failed, result 1722:
The RPC server is unavailable.
Last success @ 2008-05-03 14:43.09.
14 consecutive failure(s).
LDC\HERMES via RPC
objectGuid: e4cd3247-6eb8-4971-aca3-1f2d14678f58
Last attempt @ 2008-05-03 15:51.02 was successful.
==== OUTBOUND NEIGHBORS FOR CHANGE NOTIFICATIONS ============

CN=Schema,CN=Configuration,DC=panhealth,DC=com
LDC\HERMES via RPC
objectGuid: e4cd3247-6eb8-4971-aca3-1f2d14678f58
LDC\PHDC2 via RPC
objectGuid: 5f532861-6d51-4cdc-b988-d24a1d952404
EHO-ATX\PHDC9 via RPC
objectGuid: ddc96af7-9e67-4197-90a1-856e42f029bc
CN=Configuration,DC=panhealth,DC=com
LDC\HERMES via RPC
objectGuid: e4cd3247-6eb8-4971-aca3-1f2d14678f58
LDC\PHDC2 via RPC
objectGuid: 5f532861-6d51-4cdc-b988-d24a1d952404
DC=panhealth,DC=com
LDC\HERMES via RPC
objectGuid: e4cd3247-6eb8-4971-aca3-1f2d14678f58
LDC\PHDC2 via RPC
objectGuid: 5f532861-6d51-4cdc-b988-d24a1d952404
==========================================================
As an alternative I did replication by configuring VPN server on PHDC4
and connecting from PHDC9 to this VPN server - and did manuall
replication.
=======================================================
Please suggest.

Thanks
Sameer Naik
System Admin
sam060@xxxxxxxxx
http://forums.techarena.in



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