CentOS7.5 安裝MySql教程

CentOS7位安裝MySql教程

1.先檢查系統是否裝有mysql

rpm -qa | grep mysql

2.下載mysql的repo源

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

 如果報錯: -bash: wget: 未找到命令

 安裝插件  yum -y install wget

3.安裝 mysql-community-release-el7-5.noarch.rpm包

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

4.安裝MySQL

sudo yum install mysql-server

5.重置MySQL密碼

mysql -u root

如果報錯：

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的訪問權限問題。

chown root /var/lib/mysql/

重啟MySQL服務

service mysqld restart

接着登陸設置密碼

mysql -u root

use mysql;

update user set password=password('123456') where user='root';

exit;

6.重啟MySQL服務

service mysqld restart

接着設置Root賬戶遠程連接密碼，賬戶和密碼都是 root

 mysql -u root -p

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

重啟服務器 

service mysqld restart

7.使用外網工具連接MySQL

連接mysql的用戶名和密碼都是 root

關閉防火牆

systemctl stop firewalld.service