Wireshark Lab: HTTP v7.0

0. 实验文件地址

http://www-net.cs.umass.edu/wireshark-labs/Wireshark_HTTP_v7.0.pdf

1. The Basic HTTP GET/response interaction

1.1 Packets Display

1. 2 Question & Answer

1. HTTP version 1.1
2. zh-Hans-CN、zh-Hans
3. my computer: 218.199.0.135 server : 128.119.245.12
4. 200 OK
5. Tue, 20 Oct 2020 05:59:01 GMT
6. 128 bytes
7. Host

2. The HTTP CONDITIONAL GET/response interaction

2.1 Packets Display

2.2 Question & Answer

8. no

9. yes, because the status code is 200

10. yes

11. 304 Not Modified. The server didn’t.

3. Retrieving Long Documents

3.1 Packets Display

3.2 Question & Answer

12. Only one GET request message
13. First
14. 200 OK
15. 4 reassembled TCP segments

4. HTML Documents with Embedded Objects

4.1 Packets Display

4.2 Question & Answer

16. Three HTTP GET request messages
17. As can be seen from the time, the two photos were downloaded in chronological order.

5. HTTP Authentication

5.1 Packets Display

5.2 Question & Answer

18. 401 Unauthorized
19. Authorization