MySQL Sniffer简介

MySQLSniffer是一个基于MySQL协议的抓包工具，实时抓取MySQLServer端的请求，并格式化输出。输出内容包访问括时间、访问用户、来源IP、访问Database、命令耗时、返回数据行数、执行语句等。有批量抓取多个端口，后台运行，日志分割等多种使用方式，操作便捷，输出友好。同时也适用抓取Atlas端的请求，Atlas是奇虎开源的一款基于MySQL协议的数据中间层项目。
项目地址：https://github.com/Qihoo360/Atlas
同类型工具还有vc-mysql-sniffer，以及tshark的-emysql.query参数来解析MySQL协议。

下载使用

github地址：https://github.com/Qihoo360/mysql-sniffer
建议在centos6.2及以上编译安装，并用root运行。

依赖

glib2-devel(2.28.8)、libpcap-devel(1.4.0)、libnet-devel(1.1.6)

下载安装

git clone https://github.com/Qihoo360/mysql-sniffer
cd mysql-sniffer
mkdir proj
cd proj
cmake ../
make
cd bin/

Centos安装：

yum install cmake
yum install  libpcap-devel
yum install  glib2-devel
yum install  libnet-devel

Ubuntu安装：

apt-get install cmake
apt-get install libpcap-dev
apt-get install glib2.0-dev
apt-get install libnet-dev
apt-get install build-essential

使用

./mysql-sniffer -h
Usage mysql-sniffer [-d] -i eth0 -p 3306,3307,3308 -l /var/log/mysql-sniffer/ -e stderr
         [-d] -i eth0 -r 3000-4000
         -d daemon mode.
         -s how often to split the log file(minute, eg. 1440). if less than 0, split log everyday
         -i interface. Default to eth0
         -p port, default to 3306. Multiple ports should be splited by ','. eg. 3306,3307
            this option has no effect when -f is set.
         -r port range, Don't use -r and -p at the same time
         -l query log DIRECTORY. Make sure that the directory is accessible. Default to stdout.
         -e error log FILENAME or 'stderr'. if set to /dev/null, runtime error will not be recorded
         -f filename. use pcap file instead capturing the network interface
         -w white list. dont capture the port. Multiple ports should be splited by ','.
         -t truncation length. truncate long query if it's longer than specified length. Less than 0 means no truncation
         -n keeping tcp stream count, if not set, default is 65536. if active tcp count is larger than the specified count, mysql-sniffer will remove the oldest one

示例

1. 实时抓取某端口信息并打印到屏幕
输出格式为：时间，访问用户，来源 IP，访问 Database，命令耗时，返回数据行数，执行语句。

mysql-sniffer -i eth0 -p 3306
2017-02-23 14:47:45     testuser     10.xx.xx.xx     NULL              0ms              1     select @@version_comment limit 1
2017-02-23 14:47:45     testuser     10.xx.xx.xx     NULL              0ms              1     select USER()
2017-02-23 14:47:48     testuser     10.xx.xx.xx     NULL              0ms             13     show databases
2017-02-23 14:47:51     testuser     10.xx.xx.xx     NULL              0ms              1     SELECT DATABASE()
2017-02-23 14:47:51     testuser     10.xx.xx.xx     mysql              0ms              0     use mysql
2017-02-23 14:47:53     testuser     10.xx.xx.xx     mysql              0ms             29     show tables
2017-02-23 14:47:54     testuser     10.xx.xx.xx     mysql              0ms              1     select 1
2017-02-23 14:48:01     testuser1     10.xx.xx.xx     NULL              0ms              0     set autocommit=1
2017-02-23 14:48:01     testuser1     10.xx.xx.xx     NULL              0ms              0     set autocommit=1

2. 实时抓取某端口信息并打印到文件
-l 指定日志输出路径，日志文件将以 port.log 命名。
mysql-sniffer -i eth0 -p 3306 -l /tmp

3. 实时抓取多个端口信息并打印到文件
-l 指定日志输出路径，-p 指定需要抓取的端口列表逗号分割。日志文件将以各自 port.log 命名。
mysql-sniffer -i eth0 -p 3306,3307,3310 -l /tmp