Linux下安装MySQL

1. 关闭防火墙和selinux

• 打开文件selinux

vim /etc/sysconfig/selinux

• 将文件中SELINUX=enforcing改为disabled，然后执行”setenforce 0″不用重启地关闭 selinux
• 关闭放火墙

systemctl stop firewalld.service

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2. MYSQL安装

• 下载mysql的repo源

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

• 安装mysql-community-release-el7-5.noarch.rpm包

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

• 安装MYSQL

sudo yum install -y mysql-server

• ​ 更改MYSQL用户权限

sudo chown -R root:root /var/lib/mysql

• 重启服务

systemctl restart mysql.service

• 登录，并修改密码

mysql -u root
mysql > use mysql;
mysql > update user set password=password(‘123456‘) where user=‘root‘;
mysql > flush privileges;
mysql > exit;

ps:navicat远程连接MySQL会报没有权限,进入MySQL中输入以下指令

mysql>grant all privileges on . to root@'%' identified by "password";