TCPDUMP抓包学习
一、抓包基础
1、抓网卡ens33 的包，有多大抓多大，然后保存到a.cap中
[root@localhost ~]# tcpdump -i ens33 -s -w a.cap
tcpdump: listening on ens33, link-type EN10MB (Ethernet), capture size bytes
2、读取a.cap文件
[root@localhost ~]# tcpdump -r a.cap
reading from file a.cap, link-type EN10MB (Ethernet)
::13.453516 IP localhost.localdomain.ssh > 192.168.10.1.sicct: Flags [P.], seq :, ack , win , length
::13.453754 IP 192.168.10.1.sicct > localhost.localdomain.ssh: Flags [.], ack , win , length
::14.379791 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
::14.379825 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
::15.381526 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
::15.381556 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
::16.383090 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
::16.383121 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
::17.385139 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
::17.385273 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
::18.385827 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
::18.385866 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
::19.244187 IP 192.168.10.1. > 239.255.255.250.ssdp: UDP, length
::19.387459 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
::19.387517 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
::20.390170 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
::20.390271 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
::20.438195 IP 192.168.10.1.sicct > localhost.localdomain.ssh: Flags [P.], seq :, ack , win , length
3、读取详细内容
[root@localhost ~]# tcpdump -A -r a.cap
reading from file a.cap, link-type EN10MB (Ethernet)
::13.453516 IP localhost.localdomain.ssh > 192.168.10.1.sicct: Flags [P.], seq :, ack , win , length
E...] @.@.G...
...
.....e...7q.4P.......u0.L.}H....j.....#|!..v.Y......"<....@.B~..|0.N.n..........,......v........&.(G9.b.a9...f.....Y.t.R....m... .v....B...:.......K....
::13.453754 IP 192.168.10.1.sicct > localhost.localdomain.ssh: Flags [.], ack , win , length
E..(..@...OX..
...
.....7q.4e..$P.............
::14.379791 IP 192.168.10.1 > localhost.localdomain: ICMP echo request, id , seq , length
E..<.......H..
...
...F.....abcdefghijklmnopqrstuvwabcdefghi
::14.379825 IP localhost.localdomain > 192.168.10.1: ICMP echo reply, id , seq , length
E..<e...@..E..
4、抓tcp 22端口的包
[root@localhost ~]# tcpdump -i ens33 tcp port -w a.cap
tcpdump: listening on ens33, link-type EN10MB (Ethernet), capture size bytes
二、抓包筛选
1、通过操作系统筛选
[root@localhost ~]# tcpdump -r a.cap |awk '{print $3}'|sort -u
reading from file a.cap, link-type EN10MB (Ethernet)
192.168.10.1.
192.168.10.1.
192.168.10.1.
192.168.10.1.
192.168.10.1.cruise-config
192.168.10.1.cruise-swroute
localhost.localdomain.http
2、通过源或目标地址筛选
[root@localhost ~]# tcpdump -n src host 192.168.10.13 -r a.cap
reading from file a.cap, link-type EN10MB (Ethernet)
::59.455482 IP 192.168.10.13.http > 192.168.10.1.: Flags [.], ack , win , length
::59.455616 IP 192.168.10.13.http > 192.168.10.1.: Flags [.], ack , win , length
::59.455690 IP 192.168.10.13.http > 192.168.10.1.: Flags [.], ack , win , length
::59.455768 IP 192.168.10.13.http > 192.168.10.1.: Flags [.], ack , win , length
::01.132478 IP 192.168.10.13.http > 192.168.10.1.cruise-swroute: Flags [S.], seq , ack , win , options [mss ,nop,nop,sackOK,nop,wscale ], length
::01.132938 IP 192.168.10.13.http > 192.168.10.1.cruise-config: Flags [S.], seq , ack , win , options [mss ,nop,nop,sackOK,nop,wscale ], length
::01.134389 IP 192.168.10.13.http > 192.168.10.1.cruise-swroute: Flags [.], ack , win , length
::01.136378 IP 192.168.10.13.http > 192.168.10.1.cruise-swroute: Flags [.], seq :, ack , win , length : HTTP: HTTP/1.1 Forbidden
::01.136641 IP 192.168.10.13.http > 192.168.10.1.cruise-swroute: Flags [P.], seq :, ack , win , length : HTTP
::01.163086 IP 192.168.10.13.http > 192.168.10.1.cruise-config: Flags [.], ack , win , length
::01.163388 IP 192.168.10.13.http > 192.168.10.1.cruise-swroute: Flags [P.], seq :, ack , win , length : HTTP: HTTP/1.1 Not Found
::01.164423 IP 192.168.10.13.http > 192.168.10.1.cruise-config: Flags [P.], seq :, ack , win , length : HTTP: HTTP/1.1 Not Found
::01.178354 IP 192.168.10.13.http > 192.168.10.1.cruise-config: Flags [P.], seq :, ack , win , length : HTTP: HTTP/1.1 Not Found
::01.178523 IP 192.168.10.13.http > 192.168.10.1.cruise-swroute: Flags [P.], seq :, ack , win , length : HTTP: HTTP/1.1 Not Found
[root@localhost ~]# tcpdump -n dest host 192.168.10.13 -r a.cap
reading from file a.cap, link-type EN10MB (Ethernet)
tcpdump: syntax error
[root@localhost ~]# tcpdump -n dst host 192.168.10.13 -r a.cap
reading from file a.cap, link-type EN10MB (Ethernet)
::59.455392 IP 192.168.10.1. > 192.168.10.13.http: Flags [F.], seq , ack , win , length
::59.455603 IP 192.168.10.1. > 192.168.10.13.http: Flags [F.], seq , ack , win , length
::59.455678 IP 192.168.10.1. > 192.168.10.13.http: Flags [F.], seq , ack , win , length
::59.455757 IP 192.168.10.1. > 192.168.10.13.http: Flags [F.], seq , ack , win , length
::01.132300 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [S], seq , win , options [mss ,nop,wscale ,nop,nop,sackOK], length
::01.132607 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [.], ack , win , length
::01.132821 IP 192.168.10.1.cruise-config > 192.168.10.13.http: Flags [S], seq , win , options [mss ,nop,wscale ,nop,nop,sackOK], length
::01.133059 IP 192.168.10.1.cruise-config > 192.168.10.13.http: Flags [.], ack , win , length
::01.134332 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [P.], seq :, ack , win , length : HTTP: GET / HTTP/1.1
::01.136670 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [.], ack , win , length
::01.136736 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [.], ack , win , length
::01.162692 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [P.], seq :, ack , win , length : HTTP: GET /noindex/css/fonts/Bold/OpenSans-Bold.woff HTTP/1.1
::01.163034 IP 192.168.10.1.cruise-config > 192.168.10.13.http: Flags [P.], seq :, ack , win , length : HTTP: GET /noindex/css/fonts/Light/OpenSans-Light.woff HTTP/1.1
::01.178069 IP 192.168.10.1.cruise-config > 192.168.10.13.http: Flags [P.], seq :, ack , win , length : HTTP: GET /noindex/css/fonts/Bold/OpenSans-Bold.ttf HTTP/1.1
::01.178136 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [P.], seq :, ack , win , length : HTTP: GET /noindex/css/fonts/Light/OpenSans-Light.ttf HTTP/1.1
::01.372703 IP 192.168.10.1.cruise-config > 192.168.10.13.http: Flags [.], ack , win , length
::01.381626 IP 192.168.10.1.cruise-swroute > 192.168.10.13.http: Flags [.], ack , win , length
3、筛选端口
[root@localhost ~]# tcpdump -n port -r a.cap
TCPDUMP抓包学习的更多相关文章
- linux下抓包学习--tcpdump的使用
一.为什么需要学这个 很多时候,开发环境上不会出现问题.但在测试或者现场时,总是会有很多莫名其妙的问题. 这时候,能在出问题的环境上,开启抓包,然后再去重现问题的话,这时候,就可以拿到第一手的资料了. ...
- 转：tcpdump抓包分析(强烈推荐)
转自:https://mp.weixin.qq.com/s?__biz=MzAxODI5ODMwOA==&mid=2666539134&idx=1&sn=5166f0aac71 ...
- tcpdump抓包命令
本文转自 : http://www.cnblogs.com/ggjucheng/archive/2012/01/14/2322659.html http://www.itshouce.com.cn/l ...
- [转] Android利用tcpdump抓包
原文链接:http://mysuperbaby.iteye.com/blog/902201 Android利用tcpdump抓包 博客分类: Android AndroidAccessGoHTML ...
- TCPdump抓包命令详解--摘
http://blog.csdn.net/s_k_yliu/article/details/6665673/ http://starsliao.blog.163.com/blog/static/890 ...
- Android手机tcpdump抓包
在开发过程中遇到问题时,无法非常方便的获取到数据包,导致分析解决问题比较麻烦.这里介绍如何在Android手机上实现tcpdump抓包. 1.root机器 在用tcpdump抓包过程中,需要使用 ...
- Wireshark和TcpDump抓包分析心得
Wireshark和 TcpDump抓包分析心得 1. Wireshark与tcpdump介绍 Wireshark是一个网络协议检测工具,支持Windows平台和Unix平台,我一般只在Window ...
- tcpdump 抓包让wireshark来分析
在linux下面用tcpdump 抓包非常方便, 但是抓的包要提取出来进行分析, 还是得用wireshark来过滤分析比较方便. 下面先介绍一下 TCPDUMP 的使用 例:tcpdump host ...
- tcpdump抓包并保存成cap文件
首选介绍一下tcpdump的常用参数 tcpdump采用命令行方式,它的命令格式为: tcpdump [ -adeflnNOpqStvx ] [ -c 数量 ] [ -F 文件名 ] [ -i 网络接 ...
随机推荐
- Dubbo快速入门 四
4.业务场景 4.1).提出需求 某个电商系统,订单服务需要调用用户服务获取某个用户的所有地址: 我们现在 需要创建两个服务模块进行测试 模块 功能 订单服务web模块 创建订单等 用户服务servi ...
- C++使用代码创建一个Windows桌面应用程序
WinMain函数 Windows应用程序的唯一程序入口. 函数原型 int WINAPI WinMain { HINSTANCE hInstancem HINSTANCE hPreInstance, ...
- 【洛谷 P4302】 [SCOI2003]字符串折叠（DP）
题目链接 简单区间dp 令\(f[i][j]\)表示\([i,j]\)的最短长度 先枚举区间,然后在区间中枚举长度\(k\),看这个区间能不能折叠成几个长度为\(k\)的,如果能就更新答案. #inc ...
- js 移动端之监听软键盘弹出收起
js 移动端关于页面布局,如果底部有position:fixed的盒子,又有input,当软键盘弹出收起都会影响页面布局.这时候Android可以监听resize事件,代码如下,而ios没有相关事件. ...
- 阿里云OSS上传文件demo
1.安装ali-oss npm install ali-oss --save 2.demo 此例中使用到了ElementUI的el-upload组件.因为样式为自定义的 所以没有用element的自动 ...
- SpringMVC、SpringFox和Swagger整合项目实例
目标 在做项目的时候,有时候需要提供其它平台(如业务平台)相关的HTTP接口,业务平台则通过开放的HTTP接口获取相关的内容,并完成自身业务~ 提供对外开放HTTP API接口,比较常用的是采用Spr ...
- sql server 获取某一字段分组数据的前十条记录
1.sql 语法 select m, n from ( select row_number () over (partition by m order by n desc) rn,--以m分组,分组内 ...
- brython的问题
brython 挺不错,但有bug. 再brython中使用mpmath做精确计算. 发现: int((103654973826275244659954807217085022028357821605 ...
- 【Linux下Hadoop-eclipse-plus-3.2.0】编译Hadoop连接eclipse的插件遇见的一系列错误，崩溃的操作
2019-09-02 23:35:22 前言:首先,我想吐槽下自己,居然花费了4到5个夜晚和中午的时间来做这件事情,直到刚才才顺利解决,我也挺佩服自己的! 我在这个过程中参考其他人的博客,非常感谢他们 ...
- redhat6.7环境下oracle11gR2 RAC静默安装
(一)基础环境 虚拟机环境 :vmware workstation 12 操作系统 : redhat6.7 - 64bit 数据库版本 :11.2.0.4 (二)安装前的环境准备 (2.1)配置 ...