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安装环境:CentOS7 64位,MySQL5.7 1、配置YUM源 在MySQL官网中下载YUM源rpm安装包:http://dev.mysql.com/downloads/repo/yum/ # 下载mysql源安装包 shell> wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm # 安装mysql源 shell> yum localinstall mysql57-community-release-el7-8.noarch.rpm 检查mysql源是否安装成功 shell> yum repolist enabled | grep "mysql.*-community.*" 2、安装MySQL shell> yum install mysql-community-server 3、启动MySQL服务 shell> systemctl start mysqld 查看MySQL的启动状态 shell> systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; disabled; vendor preset: disabled) Active: active (running) since 五 2016-06-24 04:37:37 CST; 35min ago Main PID: 2888 (mysqld) CGroup: /system.slice/mysqld.service └─2888 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid 6月 24 04:37:36 localhost.localdomain systemd[1]: Starting MySQL Server... 6月 24 04:37:37 localhost.localdomain systemd[1]: Started MySQL Server. 4、开机启动 shell> systemctl enable mysqld shell> systemctl daemon-reload 5、修改root本地登录密码 mysql安装完成之后,在/var/log/mysqld.log文件中给root生成了一个默认密码。通过下面的方式找到root默认密码,然后登录mysql进行修改: shell> grep 'temporary password' /var/log/mysqld.log shell> mysql -uroot -p mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!'; 或者 mysql> set password for 'root'@'localhost'=password('MyNewPass4!'); 注意:mysql5.7默认安装了密码安全检查插件(validate_password),默认密码检查策略要求密码必须包含:大小写字母、数字和特殊符号,并且长度不能少于8位。否则会提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements错误,如下图所示: 通过msyql环境变量可以查看密码策略的相关信息: mysql> show variables like '%password%'; validate_password_policy:密码策略,默认为MEDIUM策略 共有以下几种密码策略: |
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