mysql_5.7-yum安装

添加yum文件

tee /etc/yum.repos.d/mysql-community.repo << EOF
[mysql-5.7-community]
name=MySQL 5.7 Community Server
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-5.7-community-el7-$basearch/
enabled=1
gpgcheck=0
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql
EOF
yum makecache

执行安装&&启动

yum install mysql-server -y
systemctl start mysqld &&  systemctl enable mysqld
ss -lnt
mysql_secure_installation