MySQL实现无密码登录(mysql_config_editor)

有一个业务需求是从一台主机上dump MySQL数据库的数据,但是又不想让业务人员知道具体MySQL用户的密码,可以用mysql_config_editor命令实现

一,测试环境
A机器IP为192.168.3.171
B机器IP为192.168.3.173
打算实现无“密码”从B连接到A
A和B的数据库版本

  1. (root@localhost) [(none)]> select version();
  2. +------------+
  3. | version() |
  4. +------------+
  5. | 5.7.17-log |
  6. +------------+
  7. 1 row in set (0.00 sec)
二,在A机器上创建测试用户并赋予权限

  1. (root@localhost) [(none)]> create user gl@'192.168.3.173' identified by 'onlygl';
  2. Query OK, 0 rows affected (0.00 sec)

  3. (root@localhost) [(none)]> grant all on *.* to gl@'192.168.3.173';
  4. Query OK, 0 rows affected (0.01 sec)
三,在B机器上执行如下命令,输入gl用户的密码

  1. mysql_config_editor set --login-path=gl --host=192.168.3.171 --user=gl --password
四,执行上面命令后,可以在home的目录下找到一个隐藏文件.mylogin.cnf,如下:

  1. -rw------- 1 root root 136 Feb 27 19:04 .mylogin.cnf
五,查看文件里的内容

  1. [root@mysqltest ~]# mysql_config_editor print --all
  2. [gl]
  3. user = gl
  4. password = *****
  5. host = 192.168.3.171
六,登录

  1. [root@mysqltest ~]# mysql --login-path=gl
  2. Welcome to the MySQL monitor. Commands end with ; or \g.
  3. Your MySQL connection id is 311
  4. Server version: 5.7.17-log Mysqlma
  5. Copyright(c) 2000, 2016, Oracleand/or its affiliates. All rights reserved.
  6. Oracleis a registered trademark of Oracle Corporationand/or its
  7. affiliates. Other names may be trademarks of their respective
  8. owners.
  9. Type'help;'or'\h'for help. Type'\c'to clear the current input statement.
  10. (gl@192.168.3.171)[(none)]>
七,如果不想用了,用如下命令删除

  1. mysql_config_editor remove --login-path=gl
八,适用范围

  1. mysql
  2. mysqladmin
  3. mysqldump
九,总结
1.显而易见的是用户密码被修改后,需要重新创建login-path
2.该功能仅仅在5.6.6以上版本才支持



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