Question

Django can simply connect to its own MySQL server by setting HOST and PORT in settings.py as ” (empty string):

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': 'dbname',                   # Or path to database file if using sqlite3.
        'USER': 'root',                      # Not used with sqlite3.
        'PASSWORD': 'root',                  # Not used with sqlite3.
        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
    }
}

My question is how to make it able to connect another database on another host? Suppose my machine is 192.168.1.33 and another machine to be connected is 192.168.1.34, both are on the same network. I’ve tried to set this as:

'HOST': '192.168.1.34',
'PORT': '3306',

and

'HOST': '192.168.1.34',
'PORT': '',

but both caused this OperationalError:

(2003, "Can't connect to MySQL server on '192.168.1.34'(10061)")

SOLUTION: credit @cdhowie

1. Config bind-address to the host you want in /etc/mysql/my.cnf

2. Create a new user for the host you want to give an access (if you don’t have one).

3. Check privileges for that user (if access denied).

Answer 1

By default, Debian-based distros configure MySQL to bind to localhost only, which means that other hosts cannot connect to it. Fix your MySQL configuration and it will work.

Edit /etc/mysql/my.cnf and change this line:

bind-address = 127.0.0.1

To this:

bind-address = 0.0.0.0

This will expose MySQL to all network interfaces, so make sure that you have security measures in place if this server is exposed to untrusted hosts.