安装mysql ``` yum list |grep mysql yum install -y wget wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm rpm -Uvh mysql57-community-release-el7-10.noarch.rpm rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022 yum install -y mysql-community-server systemctl start mysqld.service systemctl status mysqld.service #查看初始化密码 grep 'temporary password' /var/log/mysqld.log mysql -uroot -p systemctl enable mysqld systemctl daemon-reload ```