How to Troubleshoot 'Can't Connect to MySQL Server' Errors When Connecting Remotely via Command Line? .

Troubleshooting Remote MySQL Database Connection via Command Line

When attempting to access a remote MySQL database from a local machine command line, you may encounter the error "Can't connect to MySQL server on 'my.application.com' (10061)." This error often occurs when your connection parameters are incorrect.

The correct command syntax for connecting to a remote MySQL database is:

mysql -u {username} -p'{password}' \
    -h {remote server ip or name} -P {port} \
    -D {DB name}

Ensure that you provide the correct:

• Username (-u): Database username
• Password (-p): Database password without any spaces after the -p option
• Host (-h): Remote server's IP address or hostname
• Port (-P): Port number used by the MySQL server (default: 3306)
• Database (-D): Name of the specific database you wish to access

For example:

mysql -u root -p'root' \
        -h 127.0.0.1 -P 3306 \
        -D local

This command will connect you to the "local" database on the remote server "127.0.0.1" using the "root" user and the "root" password, assuming the port 3306 is used.

If you encounter any further connection issues, ensure that:

• The MySQL server on the remote machine is running and accessible.
• The firewall on the remote machine allows incoming connections on the MySQL server's port.
• The user you are connecting with has sufficient privileges to connect to the remote database.

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