CentOS 7安装部署MySQL 5.7教程以下是CentOS 7安装部署MySQL 5.7的详细步骤：一、MySQL 5.7安装1.使用wget命令下载MySQL 5.7安装包：wget http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm 2.使用yum安装MySQL 5.7：yum install mysql57-community-release-el7-10.noarch.rpm和yum install mysql-community-server二、MySQL服务启动和状态检查1.启动MySQL服务：systemctl start mysqld 2.查看MySQL状态：systemctl status mysqld三、MySQL临时密码获取和重启1.获取MySQL临时密码：grep 'temporary password' /var/log/mysql.log 2.删除MySQL临时密码文件：rm -rf /var/lib/mysql 3.重启MySQL服务：systemctl restart mysqld四、MySQL登录和密码修改1.登录MySQL：mysql 2.修改密码：ALTER USER 'root'@'localhost' IDENTIFIED BY 'root'; 3.设置简单的初始密码：set global validate_password_policy=0;和set global validate_password_length=1;五、远程登录配置1.授予远程登录权限：GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION; 2.刷新权限：FLUSH PRIVILEGES;六、防火墙配置1.查看防火墙状态：systemctl status firewalld 2.开启防火墙端口3306：firewall-cmd --add-port=3306/tcp --permanent和firewall-cmd --reload 3.查看防火墙端口状态：`firewall-c