功能 用于外网客户端连接内网的MySQL，将此工具安装在中转服务器上。 软件版本 mysql-proxy-0.8.1-linux-rhel5-x86-64bit.tar.gz 简单的配置过程 解压后有5个目录 bin include lib libexec share 进bin目录，查看mysql_proxy的使用帮助 [[email protected] bin]# ./mysql-proxy --help-all Usage: mysql-proxy [OPTION...] - MySQL Proxy Help Options: -?, --help Show help options --help-all Show all help options --help-admin Show options for the admin-module --help-proxy Show options for the proxy-module admin-module --admin-address=<host:port> listening address:port of the admin-server (default: :4041) --admin-username=<string> username to allow to log in --admin-password=<string> password to allow to log in --admin-lua-script=<filename> script to execute by the admin plugin proxy-module -P, --proxy-address=<host:port> listening address:port of the proxy-server (default: :4040) -r, --proxy-read-only-backend-addresses=<host:port> address:port of the remote slave-server (default: not set) -b, --proxy-backend-addresses=<host:port> address:port of the remote backend-servers (default: 127.0.0.1:3306) --proxy-skip-profiling disables profiling of queries (default: enabled) --proxy-fix-bug-25371 fix bug #25371 (mysqld > 5.1.12) for older libmysql versions -s, --proxy-lua-script=<file> filename of the lua script (default: not set) --no-proxy don‘t start the proxy-module (default: enabled) --proxy-pool-no-change-user don‘t use CHANGE_USER to reset the connection coming from the pool (default: enabled) Application Options: -V, --version Show version --defaults-file=<file> configuration file --verbose-shutdown Always log the exit code when shutting down --daemon Start in daemon-mode --user=<user> Run mysql-proxy as user --basedir=<absolute path> Base directory to prepend to relative paths in the config --pid-file=<file> PID file in case we are started as daemon --plugin-dir=<path> path to the plugins --plugins=<name> plugins to load --log-level=(error|warning|info|message|debug) log all messages of level ... or higher --log-file=<file> log all messages in a file --log-use-syslog log all messages to syslog --log-backtrace-on-crash try to invoke debugger on crash --keepalive try to restart the proxy if it crashed --max-open-files maximum number of open files (ulimit -n) --event-threads number of event-handling threads (default: 1) --lua-path=<...> set the LUA_PATH --lua-cpath=<...> set the LUA_CPATH 应用 ./mysql-proxy --admin-username=‘root‘ --admin-password=‘12345‘ --admin-lua-script=/opt/mysql-proxy-0.8.1-linux-rhel5-x86-64bit/lib/mysql-proxy/lua/admin.lua --proxy-backend-addresses=192.168.60.134:3306 --daemon 参数说明： 指定MySQL的用户名和密码、执行mysql-proxy工具的脚本、mysql服务器地址和端口、服务模式 测试 # netstat -tunlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:4040 0.0.0.0:* LISTEN 29237/mysql-proxy tcp 0 0 0.0.0.0:4041 0.0.0.0:* LISTEN 29237/mysql-proxy 4040端口是默认的代理端口，客户端连接的时候直接指向此端口 4041是默认的管理模块端口 总结：现在就可以连接中转服务器的4040端口，访问内网的MySQL服务器。除了可以进行连接的转发外，还可以进行查询的监控、过滤、分析、负载均衡（Load Balance）、失败漂移（Failover）等，更多功能以后再研究。
时间： 2024-10-24 13:59:57