1. 卸载原有mysql
rpm -qa | grep mysql
rpm -e --nodeps mysql*
2. 下载mysql的repo源
wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
如果报错：-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
先授权/var/lib/mysql访问权限
chown root /var/lib/mysql/
mysql -u root
use mysql;
update user set password=password('你的密码') where user='root';
exit;
service mysqld restart # 重启mysql服务
6. 配置远程访问
mysql -u root -p
: 输入上面设置的密码
GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "远程访问密码";
service mysqld restart # 重启mysql服务
7. 关闭防火墙
systemctl stop firewalld.service
