mysql有关配置

mysql安装

mysql安装方式有三种

源代码：编译安装
二进制格式的程序包：展开至特定路径，并经过简单配置后即可使用
程序包管理器管理的程序包：
- rpm：有两种
  - OS Vendor：操作系统发行商提供的
  - 项目官方提供的
- deb

MySQL配置

#启动mysql并设置开机自动启动

systemctl enable --now mariadb

systemctl status mariadb

#确保3306端口已经监听起来

ss -antl

#在日志文件中找出临时密码

grep "password" /var/log/mysqld.log

#使用获取到的临时密码登录mysql

[root@localhost ~]# mysql -uroot -p

Enter password:     //此处输入密码，可以直接复制你的密码粘贴至此处，也可手动输入

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 2

Server version: 5.7.23

Copyright (c) 2000, 2018, 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.

mysql>          //看到有这样的标识符则表示成功登录了

修改密码

[root@localhost ~]# mysql                   #默认是没有密码的，直接回车即可登入

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 2

Server version: 5.5.68-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> set password = password('123456');        #设置密码

Query OK, 0 rows affected (0.00 sec)

//修改mysql登录密码

mysql> set global validate_password_policy=0;

Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password_length=1;

Query OK, 0 rows affected (0.01 sec)

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'wangqing123!';

Query OK, 0 rows affected (0.00 sec)

mysql> quit

Bye

巴特西

mysql有关配置

mysql有关配置

mysql安装

MySQL配置

修改密码

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