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Let us briefly list the main tests of the DCDiag utility:. Checks if the domain controller is correctly reporting itself and its role as the operations master. This test fails if the NetLogon service is not running. Verifies the correctness of the reference domain security descriptors for each section of the program directories. Check the global catalog server, primary domain controller, preferred time server, and KDC.

Checks for errors that may interfere with normal replication between AD sites. Microsoft warns that sometimes this test may not be accurate. Verifies the correctness of the registration of the account of the target computer and the correctness of the service announcements of this computer. Checks the operability and availability of the RID master.

Verifies the health of all services required for the operation of the ADDS on the specified domain controller. Checks the validity of the system links of the file replication service for all objects on all domain controllers in the forest.

Checks the validity of the file replication service system references for all objects on the specified domain controller. Checks the validity of all sections of the application directory on all servers involved in the replication.

Checks the DNS infrastructure for any computer that you want to promote to a domain controller. If the infrastructure meets the requirements, you can install the ADDS domain controller role on the computer. It is recommended to run the DcDiag test on the domain controller itself, and not remotely. Note that you are likely to encounter warning events when running DcDiag tests remotely. Tests such as SystemLog will fail unless you run dcdiag. When you run the tool without specifying parameters, all 30 tests for the specified domain controller are run.

In our example, it is clear that all tests passed successfully Starting test: …. It means that everything is fine on this DC. The test results will show Passed if the test was successful and DcDiag found no errors.

If an error is found, the Failed message will appear next to the check name. DcDiag allows you to perform a quick general health test of Active Directory and domain controllers. When launching the DcDiag tool remotely, you need to specify the credentials with the domain admin privileges:.

In order to display the extended information and save the test results to files, use the command:. To test all domain controllers in the current Active Directory site , run the command:. For example, to run all DNS tests for a specific domain controller and export the result to a text file:.

In addition, an inventory report is generated based on the test results. DnsBasic tests and resolves the InternetName. If DnsInternetName is not specified, the tool attempts to resolve www. For example, you need to automatically fix some common DNS errors.

Use the following command to fix any errors found in the DNS service on the specified domain controller:. Verifies the registration permissions that allow registration for each domain controller. Checks replication between domain controllers and reports all replication errors.

Tests DnsBasic and checks if dynamic update is enabled for an Active Directory zone.

Download Windows® Server SP1 Platform SDK ISO Install from Official Microsoft Download Center.Windows Server SP2

 
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dcdiag on Windows Server | Ars OpenForum – Windows Server 2003 – DCDiag Tutorial

All rights reserved. Covered by US Patent. Come for the solution, stay for everything else. Also, to confirm, didiag does not do diagnostic, does it? What am I missing? Log in or sign up to see answer. Members can start a 7-Day Free trial then enjoy unlimited access to the platform. Sign up – Free for 7 days.

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Log in to continue reading. Log In. I do have Windows Server SP2. Shouldn’t I have that tool already. Darius Ghassem. You must install the Support Tools. I wrongly understood that it has the tools, but it has only the updates to the tools. Experts Exchange has a saved my job multiple times, b saved me hours, days, and even weeks of work, and often c makes me look like a superhero!

You can install tools from SP2 install disk as well. Thanks all for your help. Plans and Pricing. Contact Us. Certified Expert Program.

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