To Fix A Problem Like Perform The Following Steps

By Author: kennie
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1.On Serverl, log on as Administrator.
2.Open the Event Viewer application. (You can do this in one of two ways: Click Start,click All Programs, Administrative Tools, and then click Event Viewer; or Click Start,click Run, and then type free 70-291 test questions in the Open dialog box. Click OK.)Click on the System log. You should see some Warning events in the right-hand pane that display a source of Netlogon. The time on these events should be the time you restarted Serverl. There should be at least two unique messages, but there could be four or more of these events in a row. The Event IDs are 5773 and 5781, which you can see by double-clicking each Warning event. Review the information inside each Warning event and then close it. Once you've reviewed all of these messages, close the Event Viewer.
4.Open a command prompt.
5.In the Command Prompt window, type netdiag and press Enter. Remember, the Windows Support Tools must be installed in order for this command to work.
6.Once this utility has finished running, scroll up in the Command Prompt window until you ...
... see the DNS test section. Notice that the DNS test shows a failure. Read that message.
7.Now, you'll attempt to repair this issue by typing netdiag MCSA required exams and then pressing Enter. Scroll up in the Command Prompt window until you see the DNS test section. Notice all of the [FATAL] messages.
Your attempt to fix the issue at this point fails because your DNS server is not accepting dynamic updates. Now you'll switch your DNS server back to allowing dynamic updates in order to correct this issue. Remember, if you don't allow dynamic updates, the only way to correct this issue is to enter the records manually in DNS based on the contents of the Netlogon.dns file (as described earlier in this chapter).
8.Open the DNS console and expand the SERVER1 object, Forward Lookup Zones object, and the _msdcs.contoso.com object.
9.Right-click _msdcs.contoso.com object and click Properties on the resulting context menu. You'll see the _msdcs.contoso.com Properties dialog box General tab appear.
10.Change the Dynamic Updates option box to read Secure Only. Leave the DNS console open.
11.Now, you'll use the Netdiag utility to fix this issue. Return to the Command Prompt window and type netdiag /fix and press Enter. Once this utility has finished running, scroll up until you see the DNS test section. Notice that Netdiag has repaired the problem. The utility may still report one failure, but that issue is actually solved. You'll see this if you run the utility one more time.
12.Type netdiag and press Enter. Scroll up to the DNS test and notice that the DNS test is entirely successful.
13.You can also verify the fix by checking the DNS console. Return to the DNS console and press the F5 key to refresh the screen. Notice that the _ldap record appears on the right-hand pane.
The Windows Support Tools are invaluable when troubleshooting configuration issues. Netdiag is one of the first free certification exam questions troubleshooting tools experienced administrators use because it can diagnose and even correct several issues.