yum 安装Mysql

1.yum源下载安装
wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
yum localinstall -y mysql57-community-release-el7-11.noarch.rpm

2.安装mysql
yum install -y --skip-broken mysql-community-devel-5.7.36
yum install -y --skip-broken mysql-community-server-5.7.36
3.启动Mysql
systemctl start mysqld
4.修改配置
mysql_secure_installation