阿里云安装 MySQL，远程连接

安装 MySQL

~# sudo apt-get update
~# apt-get install mysql-server
~# apt-get install mysql-client

安装成功后启动

~# service mysql start

查看一下端口，确认mysql正常启动

~# netstat -tnl|grep 3306

数据库启动后进行初始化（都选 YES）

~# mysql_secure_installation

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远程连接

打开阿里云控制台，找到自己的 ECS 实例，添加安全组规则：

20171122-103130.png

授权用户

root@iZhp3c4t17pu8f04lck5odZ:~# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.7.20-0ubuntu0.16.04.1 (Ubuntu)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

// 赋予任何主机访问数据的权限  
mysql> GRANT ALL PRIVILEGES ON *.* TO root IDENTIFIED BY "密码";
 
// 然后输入，更新数据库
mysql> FLUSH PRIVILEGES;

// 你也可以授权一个叫 TestUser（自定义）的账户，并授予它远程连接的权力，命令如下：
mysql> GRANT ALL PRIVILEGES ON *.* TO 'TestUser'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

mysql> quit
Bye
root@iZhp3c4t17pu8f04lck5odZ:~# 

尝试登录一下

$ mysql -h xx.xx.xx.xx -P 3306 -u root -p密码
ERROR 2003 (HY000): Can't connect to MySQL server on 'xx.xx.xx.xx' (60)

这是因为MySQL没有开放远程连接，需要修改配置文件：

$ sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf

注释掉其中的bind-address = 127.0.0.1：

20171122-104627.png

重启数据库

~# service mysql restart

OK!