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Sams Teach Yourself Network Troubleshooting in 24 Hours, Second Edition by Jonathan Feldman

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Q&A

Q1: Under Windows, what happens if I ping the loopback address and it fails?
A1: You might want to remove and reinstall the TCP/IP protocol from your Network Control Panel. This could fix corrupt TCP/IP stack files. This isn’t too common, though, and might be symptomatic of major problems on the workstation.
Q2: Hey, can you tell me more about this nslookup tool, please?
A2: This is a really great tool, but is more appropriately discussed in Hour 19 than here. I mention it here because as you get more sophisticated with DNS— particularly if you build an Internet site or deploy Microsoft’s Active Directory— it might become part of your initial rote troubleshooting.
Q3: I can’t ping a server on the Internet, even when it’s up! What gives? ...

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