Linux CentOS 7 安装mysql的步骤

#wget命令用来从指定的URL下载文件

wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

rpm -ivh mysql-community-release-el7-5.noarch.rpm

yum install mysql-community-server

重启mysql服务

service mysqld restart || systemctl restart mysqld.service

mysql -uroot 回车

默认安装完，root是没有密码的，需要手动添加密码

#set password for 'root'@'localhost'=password('密码');

set password for 'root'@'localhost'=password('root');

#给root用户赋予远程登录权限

grant all privileges on *.* to root@'%' identified by 'root' with grant option;

#刷新mysql权限

flush privileges;

#开放3306端口

firewall-cmd --zone=public --add-port=3306/tcp --permanent

#重启防火墙

systemctl restart firewalld