mysql5.7免密登录
转载: https://www.cnblogs.com/hanglinux/p/11773255.html
方法一:通过设置client标签,直接编辑/etc/my.cnf文件
[client] user=root password=123456 port = 3306
我们直接输入mysql就可以进行登录mysql数据库,这种不好的地方就是我们的密码是不加密的,可见的,是不安全的。
[root@tz-ftp-yum ~]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 17 Server version: 5.7.25-log MySQL Community Server (GPL) Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. root@localhost [(none)]>
方法二:通过mysql_config_editor命令。
[root@tz-ftp-yum ~]# mysql_config_editor set -G vml -S /tmp/mysql.sock -u root -p Enter password: [root@tz-ftp-yum ~]#
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@tz-ftp-yum ~]# 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
[root@tz-ftp-yum ~]# mysql_config_editor print --all [vml] user = root password = ***** socket = /tmp/mysql.sock
我们可以通过--login-path=vml这种方式进行免密码登录数据库
[root@tz-ftp-yum ~]# mysql --login-path=vml Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 20 Server version: 5.7.25-log MySQL Community Server (GPL) Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. root@localhost [(none)]>
方法三:我们通过my.cnf来配置,设置到~/.my.cnf来配置免密码
[root@rsync-test03 ~]# cat .my.cnf [client] user=root password=123456 port = 3306
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