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
![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201114104646737.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

方法字段可以取不同的值：GET、POST、HEAD、PUT和DELETE。

  1. GET：请求服务器发送某个资源。
  2. HEAD：与GET很相似，但是服务器在响应中只返回首部，不会返回实体的主体部分。
  3. PUT：向服务器写入文档。
  4. POST：POST方法期初是用来向服务器输入数据的，实际上，通常会用它来支持HTML的表单。
  5. DELETE：请服务器删除请求URL所指定的资源。

持续连接与非持续连接：每个请求/响应对是经一个单独的TCP连接发送，还是所有的请求及其响应经相同的TCP连接发送。

![在这里插入图片描述]( https://img-blog.csdnimg.cn/2020111410201383.jpg?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)
下面是常见的HTTP状态码：

  1. 200 —— 请求成功
  2. 301 —— 资源（网页等）被永久转移到其他URL
  3. 404 —— 请求的资源（网页等）不存在
  4. 500 —— 内部服务器错误

1. The Basic HTTP GET/response interaction

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021090319744.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

1.1 Packets Display

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021090655672.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)
![在这里插入图片描述]( https://img-blog.csdnimg.cn/2020102109070148.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)

1. 2 Question & Answer

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021090812808.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

  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

![在这里插入图片描述]( https://img-blog.csdnimg.cn/2020102109133683.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

2.1 Packets Display

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021120841184.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

2.2 Question & Answer

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021092623423.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)
8. no![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021120929558.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)

  1. yes, because the status code is 200![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021121005671.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

  2. yes![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021121040809.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

  3. 304 Not Modified. The server didn't.

3. Retrieving Long Documents

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021115528190.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

3.1 Packets Display

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021121231251.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

3.2 Question & Answer

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021120147319.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)
12. Only one GET request message
13. First
14. 200 OK
15. 4 reassembled TCP segments![在这里插入图片描述]( https://img-blog.csdnimg.cn/2020102112171421.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)

4. HTML Documents with Embedded Objects

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021121841682.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

4.1 Packets Display

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021122848896.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

4.2 Question & Answer

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021122950312.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)
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

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021123258901.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

5.1 Packets Display

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021123325389.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA==,size_16,color_FFFFFF,t_70#pic_center)

5.2 Question & Answer

![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021123359545.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)
18. 401 Unauthorized
19. Authorization![在这里插入图片描述]( https://img-blog.csdnimg.cn/20201021123441635.png?x-oss-process=image/watermark ,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl81MTcwMzE3NA,size_16,color_FFFFFF,t_70#pic_center)

posted @ 2022-10-14 18:48  astralcon  阅读(275)  评论(0)    收藏  举报