Troubles with MariaDB connections can be attributed to several reasons hence it’s very important to identify the correct issue to solve the problem. Here are a few possible solutions:
1. Restart Service: Ensure MariaDB service is running and restart it if necessary.
1. Check Configuration: Make sure your configuration is correct. You can find the MariaDB configuration file at /etc/my.cnf.d/server.cnf. Ensure that the port and bind address are correctly set.
1. Port: Check if the port MariaDB is supposed to be running on is not blocked or used by any other application. By default, MariaDB uses port 3306.
1. Firewall: Ensure that the system’s firewall isn’t blocking the port 3306.
1. Proper Credentials: Make sure you are using the correct username, password and hostname while trying to connect to the MariaDB server.
1. Privileges: Verify the user trying to connect has the necessary privileges.
1. Network Issues: If your MariaDB server is on a different computer, ensure both machines can connect to each other.
1. Too many connections: If MariaDB throws an ‘Too many connections’ error, you might want to increase the number of simultaneous connections MariaDB can handle, this default value is 151 to change it you can modify the file /etc/mysql/my.cnf including the line: max_connections = NUMBER_OF\_CONNECTIONS.
If the problem still persists, error log in MariaDB can help in troubleshooting specific issues. You can also consider getting help from the community or professional support.
