在线安装MySQL

安装MySQL5.7

yum -y install mysql57-community-release-el7-10.noarch.rpm

若无可用安装包，执行下面这句

wget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm

本地安装

yum localinstall -y mysql57-community-release-el7-7.noarch.rpm

安装MySQL服务

yum install -y mysql-community-server

若报：mysql-community-common-5.7.42-1.el7.x86_64.rpm 的公钥尚未安装 执行下面安装，强制安装 --nogpgcheck跳过检查

yum install -y mysql-community-server --nogpgcheck

启动MySQL服务

systemctl start mysqld.service

查看MySQL状态

systemctl status mysqld.service

查找默认密码

grep “password” /var/log/mysqld.log

登录

mysql -uroot -p

修改密码

ALTER USER ‘root’@‘localhost’ IDENTIFIED BY ‘123ABCdef*#’;

赋权

grant all privileges on . to ‘root’@‘%’ identified by ‘123ABCdef*#’ with grant option;