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3.    Click Properties to open the TCP/IP Properties dialog box for that binding.

4.    Click the DNS Configuration tab.

As you can see in Figure 10.1, DNS has been disabled on this workstation. At this point, it doesn’t matter how it was disabled. We could probably assume that the user did something by accident to cause this to happen or that it was the result of a software installation, but anything is possible. To

re-enable DNS, click the Enable DNS button. You may have to reboot the workstation to get the changes to take effect.

FIGURE 10.1 TCP/IP DNS properties for the misconfigured workstation

Step 6: Test the Result

Now that you have made the changes, you must test your solution to see if it solves the problem. In our example, we’d ask the user to try to access the intranet (since that was the problem reported). In general terms, ask the user to repeat the operation that previously did not work. If it works, great! The problem is solved. If it doesn’t, try the operation yourself.

If the problem isn’t solved, you may have to go back to step 4, select a new possible cause, and redo steps 5 and 6. But it is important to make note of what worked and what didn’t so that you don’t make the same mistakes twice.

Step 7: Recognize the Potential Effects of the Solution

The fundamental flaw of any network technician is the ability of the technician to solve only the one problem and not realize what other problems that

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