0. 实验文件地址
http://www-net.cs.umass.edu/wireshark-labs/Wireshark_DNS_v7.0.pdf
1. nslookup
2. ipconfig
3. Tracing DNS with Wireshark
3.1 www.ietf.org
3.1.1 Packets Display
3.1.2 Question & Answer
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UDP
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port: 53
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211.67.48.8; yes
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type: A. no "answers".
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Three answers.
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no
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no
3.2 www.mit.edu
3.2.1 Packets Display
3.2.2 Question & Answer
11. port: 53
12. 211.67.48.8 yes
13. type: AAAA; no "answers"
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Three answers. Each of these answers contain name, type, class, time to live, data length and CNAME.
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3.3 www.aiit.or.kr bitsy.mit.edu
3.3.1 Packets Display
3.3.2 Question & Answer
20. 18.0.72.3; 211.67.48.8
21. type: A. no "answers"
22. Only one "answers".
23.