CentOS7 64位安装MySql教程

1、先检查系统是否装有mysql

rpm -qa | grep mysql

2.、下载mysql的repo源

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

报错: -bash: wget: 未找到命令
安装插件 yum -y install wget

3、 安装mysql-community-release-el7-5.noarch.rpm包

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

4、安装MySQL

sudo yum install mysql-server

5、重置MySQL密码

mysql -u root

报错：
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (2)
原因：原因是/var/lib/mysql的访问权限问题。

chown root /var/lib/mysql/

6、重启MySQL服务

service mysqld restart

7、接着登陆设置密码

mysql -u root
use mysql;
update user set password=password('123456') where user='root';
exit;

接着继续重启MySQL服务

service mysqld restart

8、 接着设置Root账户远程连接密码

mysql -u root -p

输入上面的密码 123456

GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root";

重启服务器

service mysqld restart

9、使用外网工具连接MySQL
关闭防火墙

systemctl stop firewalld.service