Question

I have Nginx+Passenger+Rails3.

Passenger throws the following error:

Can't connect to MySQL server on '184.169.131.xxx' (111) (Mysql2::Error)

I am able to connect to MySql using mysql command. I think that the user that is running Passenger doesnt have the permissions.

I want to know: How to determine which user is running passenger and how to give permissions to access mysql.

Thanks

Answer 1

If it can’t connect, it’s likely that either:

• Your MySQL process is bound to 127.0.0.1 and can’t accept connections from remote machines.
• Your firewall has blocked port 3306.

Are you certain that mysql is connecting to the same remote? You might be running a local server instead that allows access with the default configuration.

As a note, opening up 3306 to the general internet is a bad idea, so you will want to be very selective in how you do this. The best practice is to use private IPs whenever possible, like 10.x.x.x, 172.16.x.x or 192.168.x.x. There are a number of reserved blocks which can be used safely, but these cannot be routed outside your local network.

You should also check that whatever config/database.yml settings you have defined are the same you’re using with the mysql command-line tool. Passenger is not treated as a special case.