1. The Network Files, Case #53: Diagnosing diseases of DNS Presented by Mark Minasi help@minasi.com www.minasi.com for newsletters, audio sets etc WSV313

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9. 9. (root).com.org.net.uk.gov.ca minasi.commicrosoft.comdoj.gov hq.minasi.com waco.doj.gov test.minasi.com mswatch.doj.gov Top level domainsSecond level domains “sub-domains” or “child domains”

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18. ISPDNS web2.minasi.com What's the IP address for a.bigfirm.com? Send it to my port 3351 and specify transaction ID (TXID) 279 when you do. "Answer: 73.165.73.5" sent to port 3351, TXID 279 (The port number and TXID are random numbers with values ranging up to 65,535.) 18

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27. Then, start up Network Monitor and see a screen that looks something like this (without the Teredo and Isatap NICs): Select the NICs you care about and whether or not you want "promiscuous mode"

28. Phase 2: window cleanup

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31. Just the good stuff. 31

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35. Question: "hey, root, ever heard of a.bigfirm.com?" One question, no answers, no authority ("Name ServerCount," no additionals The Question! 35

36. 36 Response: "um, no, but you should next check the.com DNS servers – here are their names and IP addresses" The question count just parrots back the question. There is no answer. The "authority section" offers hints about where to ask the question NEXT with the.com DNS server names. The "additional" section saves you the trouble of having to look up their IPv4 and IPv6 addresses.

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38. 38 "I don't have the answer, but go ask web2.minasi.com, it will be able to answer your question"

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42. Extensions to DNS a 2008 R2 issue, sort of

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50. 50 Note the "DnsOverTcp" protocol reference

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54. Tools Some DNS test tools, in brief

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67. Talk to our Experts at the TLC #TE(sessioncode) DOWNLOAD Windows Server 2012 Release Candidate microsoft.com/windowsserver Hands-On Labs DOWNLOAD Windows Azure Windowsazure.com/ teched

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