SBS with Replica Domain Controllers

There is a myth about SBS stating that SBS does not support additional domain controllers. That is completely untrue.  An SBS domain can have multiple domain controllers.  The onlly requirement is that the SBS server holds the FSMO roles.  So for the record “You can have multiple domain controllers in your SBS domain”. Tools that…

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Replmon Utility to View Group Policy Objects List

Replmon is a GUI tool that enables administrators to view the low-level status of Active Directory replication, force synchronization between domain controllers, view the topology in a graphical format, and monitor the status and performance of domain controller replication. It is included with the Windows Server 2003 Support Tools. Support Tools are included on the Windows Server…

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Roderick White Indroduction

Hello   My name is Rod White.  I first want to thank Stephanie for inviting me to join her blog team. We hope to give you information on how to troubleshoot and resolve issues with tools and Log files and not just how to read KB articles and latest issues.   First, let me tell…

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Ports – Other References

My co-worker, David Copeland, gave me a few more references: http://support.microsoft.com/default.aspx?scid=kb;en-us;832017 http://www.iana.org/assignments/port-numbers   Thanks David!

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Well Known Ports List

Maybe you did not know it but your computer contains a file that has a list of the well-known ports that are used by services.  This file contains port numbers for well-known services defined by IANA.  This file is located on servers and client computers. Go to the %systemroot%\system32\drivers\etc folder and open the services file with…

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Network Ports Used by Active Directory Replication

RPC 135 LDAP UDP 389 TCP 389 LDAP (Secure Sockets Layer [SSL]) TCP 336 LDAP (Global Catalog) TCP 3268 Kerberos UDP 88 TCP 88 DNS UDP 53 TCP 53 SMB over IP (Direct Hosting) UDP 445 TCP 445

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Understanding Domain Replication

Replication is the process of copying Active Directory data between domain controllers to ensure that they all have the same information.  The Windows Server 2003 multiple-master replication capabilities make the entire replication process more complex than it was in Microsoft Windows NT.  On a Windows NT network, servers write all domain directory changes to the…

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OWA Returns HTTP 1.1 503 Service Unavailable Error

I came across an issue that was well worth documenting and sharing.  Some of the symptoms that you may see for this issue include: OWA returns the following error   HTTP 1.1 503 Service Unavailable  Also, you can get the following. Active Server Pages error ‘ASP 0201’  Invalid Default Script Language  The default script language…

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