The Network Files, Case #53: Diagnosing Diseases of DNS

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Network troubleshooters soon learn that the first place to look when the network stops working is DNS... and soon after that, they learn that the in-the-box DNS troubleshooting tool, nslookup, is a pretty weak answer—but this session remedies that with a clear, step-by-step set of diagnostic approaches and prescriptions for DNS ills of all stripes. Give your troubled DNS queries a thorough workup with Network Monitor, and find out why those dynamic updates aren't happening. Get the scoop on the dread "EDNS flu," an ailment endemic to Windows Server 2008 and Windows Server 2008 R2 boxes. Take your DNS system's pulse with DNSLint. Take a sample of your DNS output with a close examination of your logs, and more. Attend this talk—the second-highest rated out of 400+ at TechEd North America 2011 and the 10th-best attended despite being in the last session timeslot of the conference—and you'll soon be known as "Doctor DNS!" #TEWSV313









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