1、配置文件直接写出密码
1 1 [root@localhost bin]# cat /etc/my.cnf 2 2 [client] 3 3 user=root 4 4 password=123456 5 5 6 6 [mysqld] 7 7 ########basic settings######## 8 8 server-id = 11 9 9 port = 3306 10 10 user = mysql 11 11 socket=/var/lib/mysql/mysql.sock 12 12 #bind_address = 10.166.224.32 13 13 #autocommit = 0 14 14 character_set_server=utf8 15 15 skip_name_resolve = 1 16 16 max_connections = 800 17 17 max_connect_errors = 1000 18 18 #datadir = /data/mysql_data 19 19 datadir = /usr/local/mysql/data 20 20 basedir = /usr/local/mysql 21 21 transaction_isolation = READ-COMMITTED 22 22 explicit_defaults_for_timestamp = 1 23 23 join_buffer_size = 134217728 24 24 tmp_table_size = 67108864 25 25 tmpdir = /tmp 26 26 max_allowed_packet = 16777216 27 27 #sql_mode = "STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER" 28 28 interactive_timeout = 1800 29 29 .......
1 [root@localhost bin]# mysql 2 Welcome to the MySQL monitor. Commands end with ; or \g. 3 Your MySQL connection id is 3 4 Server version: 5.7.9-log MySQL Community Server (GPL) 5 6 Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. 7 8 Oracle is a registered trademark of Oracle Corporation and/or its 9 affiliates. Other names may be trademarks of their respective 10 owners. 11 12 Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 13 14 mysql>
此时在命令行里输入mysql能够直接登录mysql数据库
2、设置到~/.my.cnf来配置免密码
[root@rsync-test03 ~]# cat .my.cnf [client] user=root password=123456 port = 3306 ....... 与1类似不做赘述
3、通过login-path来登录，这个好像知道的人比较少，相对来说比较安全，但是在生产环境中如果有人入侵你的环境了，破解一个二进制文件也不会有什么难度。所以目前生产环境中还未见到，在生产环境中，更改弱口令的时候，是通过读取加密文件获取密码的！
现列出login-path的登录实现方法
1 [root@localhost bin]# mysql_config_editor set -G vml -S /tmp/mysql.sock -u root -p 2 Enter password: 3 [root@localhost bin]# mysql_config_editor set -G vml -u root -p 4 Enter password: 5 WARNING : 'vml' path already exists and will be overwritten. 6 Continue? (Press y|Y for Yes, any other key for No) : y 7 [root@localhost bin]# mysql_config_editor set -G vml -S /tmp/mysql.sock -u root -p 8 Enter password: 9 WARNING : 'vml' path already exists and will be overwritten. 10 Continue? (Press y|Y for Yes, any other key for No) : y
加不加mysql.sock都可以正常生成vm1文件
我们配置完成之后就会在这个用户目录下面生成一个.mylogin.cnf的二进制文件
[root@localhost bin]# file /root/.mylogin.cnf /root/.mylogin.cnf: data
我们print之后就可以发现，我们创建了一个标签，标签的名字就是vml，密码是加密的，我们这样就看不到密码了，并且这种存储方式是二进制的，相对比较安全
1 [root@localhost bin]# mysql_config_editor print --all 2 [vml] 3 user = root 4 password = ***** 5 socket = /tmp/mysql.sock
下面通过login-path方式登录数据库
1 [root@localhost bin]# mysql --login-path=vm1 2 Welcome to the MySQL monitor. Commands end with ; or \g. 3 Your MySQL connection id is 4 4 Server version: 5.7.9-log MySQL Community Server (GPL) 5 6 Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. 7 8 Oracle is a registered trademark of Oracle Corporation and/or its 9 affiliates. Other names may be trademarks of their respective 10 owners. 11 12 Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 13 14 mysql>
下边内容是可能出现的报错，我没有试，在网上的
故障排查 再使用MySQL免密码登录的过程中，提示如下报错 权限全局可写，任何一个用户都可以写。mysql担心这种文件被其他用户恶意修改，所以忽略掉这个配置文件。这样mysql无法重启。 [root@rsync-test03 ~]# mysql mysql: [Warning] World-writable config file '/root/.my.cnf' is ignored. ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) 查看.my.cnf文件发现该文件的权限不对。重新授权 [root@rsync-test03 ~]# chmod 600 .my.cnf [root@rsync-test03 ~]# ll .my.cnf -rw------- 1 root root 47 Oct 31 19:06 .my.cnf