MySQL Sniffer and mysqlsniffer

MySQL Sniffer and mysqlsniffer

MySQL Sniffer is a 360 open-source MySQL-based packet capture tool that can capture client requests in real time and format output operation statements.
The Operation Review is a good tool for locating problems.

 

Github address: https://github.com/Qihoo360/mysql-sniffer

 

Install

# Yum install glib2-devel libpcap-devel libnet-devel
# Unzip mysql-sniffer-master.zip
# Cd mysql-sniffer-master
# Cmake.

-- Configuring done-- Generating done-- Build files have been written to: /root/mysql-sniffer-master

# Make

Scanning dependencies of target mysql-sniffer[ 16%] Building C object bin/CMakeFiles/mysql-sniffer.dir/main.c.o[ 33%] Building C object bin/CMakeFiles/mysql-sniffer.dir/mysql-dissector.c.o/root/mysql-sniffer-master/src/mysql-dissector.c: In function ‘decode_mysql_lenenc_int’:/root/mysql-sniffer-master/src/mysql-dissector.c:112: warning: dereferencing type-punned pointer will break strict-aliasing rules[ 50%] Building C object bin/CMakeFiles/mysql-sniffer.dir/util.c.o[ 66%] Building CXX object bin/CMakeFiles/mysql-sniffer.dir/session.cpp.o[ 83%] Building CXX object bin/CMakeFiles/mysql-sniffer.dir/sniff-config.cpp.o[100%] Building CXX object bin/CMakeFiles/mysql-sniffer.dir/sniff-log.cpp.oLinking CXX executable mysql-sniffer[100%] Built target mysql-sniffer

# Cd bin/

# Ls

CMakeFiles  cmake_install.cmake  Makefile  mysql-sniffer

 

Parameter description

Parameter descriptions are concise and easy to understand.

# ./mysql-sniffer -helpUsage ./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

 

Example

#./Mysql-sniffer-I eth0-p 3306

The penultimate column is the number of rows returned.

2017-03-08 11:00:08     root     192.168.244.20     NULL              0ms              1     select @@version_comment limit 12017-03-08 11:00:08     root     192.168.244.20     NULL              0ms              1     select USER()2017-03-08 11:00:10     root     192.168.244.20     NULL              0ms              1     select 12017-03-08 11:01:46     root     192.168.244.20     NULL              0ms              1     SELECT DATABASE()2017-03-08 11:01:46     root     192.168.244.20     test             24ms              0     use test2017-03-08 11:01:46     root     192.168.244.20     test            172ms             14     show databases2017-03-08 11:01:46     root     192.168.244.20     test              0ms             20     show tables2017-03-08 11:01:52     root     192.168.244.20     test              0ms             20     show tables2017-03-08 11:01:57     root     192.168.244.20     test             58ms              9     select * from test12017-03-08 11:02:17     root     192.168.244.20     test              0ms              1     SELECT DATABASE()2017-03-08 11:02:17     root     192.168.244.20     test              0ms              0     use test

 

Note:

1. Only the newly created link can be crawled. If it is a previously created link, the user name and database name cannot be obtained, and there is a probability of packet loss.

2. If the client is local and the tcp connection is used, for example, mysql-h 192.168.244.10-uroot-p123456, where 192.168.244.10 is the ip address of the local host,
It can only be captured through the loop address,./mysql-sniffer-I lo-p 3306

 

Reference

Https://github.com/Qihoo360/mysql-sniffer/blob/master/README_CN.md