Error
Error Code:
1251
MariaDB Error 1251: Client Authentication Protocol Mismatch
Description
This error occurs when a MariaDB client attempts to connect to a MariaDB server, but the authentication method configured on the server is not supported by the client. It commonly indicates that the client software is too old to understand the modern authentication protocols used by the server.
Error Message
Client does not support authentication protocol requested by server; consider upgrading MariaDB client
Known Causes
3 known causesOutdated Client Software
Your MariaDB client application or library is older than the server and does not support the authentication protocols used by the server.
Server Using Stronger Authentication
The MariaDB server is configured with a newer, more secure authentication plugin that the connecting client cannot process.
Incompatible Client Driver
The specific client library or database driver being used is not compatible with the server's authentication protocol requirements.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service