How to enable remote access for MySQL on EC2

Recently, MySQL was installed on an Amazon cloud host and cannot be accessed remotely. After several pitfalls, the access was successful. Here we will record: EC2

Recently, MySQL was installed on an Amazon cloud host and cannot be accessed remotely. After several pitfalls, the access was successful. Here we will record: EC2

Recently, MySQL was installed on an Amazon cloud host and cannot be accessed remotely. After several pitfalls, the access was successful. Here we will record how to enable remote access after MySQL is installed on EC2.

I. Problems Encountered

To remotely access MySQL on EC2, the following message is displayed:
ERROR 2003 (HY000): Can't connect to MySQL server on 'xx. xx. xx. xx' (111)
Or
Host 'xx. xx. xx. xx' is not allowed to connect to this MySQL server

Ii. Solutions

1. Set the EC2 Firewall

EC2's default firewall blocks all traffic. Therefore, in addition to other necessary rules in EC2's Scurity Groups, you must add an ingress traffic rule: any source IP connection of port 3306 of TCP is allowed.

2. Set User Access in MySql

By default, MySQL only allows access from the local machine. To enable remote access, run the following commands in Terminal:

Mysql-u root-p
Use mysql
Update user set Host = '%' where User = 'root'

In this way, you can access MySql from any IP address.

3. Bind IP addresses in MySQL

Sudo vim/etc/mysql/my. cnf1

Change bind-address 127.0.0.1 to bind-address 0.0.0.0, so that the EC2 IP address can be remotely accessed regardless of the change.

4. Restart MySQL

Sudo/etc/init. d/mysql restart1

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