MariaDB: Resolving the "SSL connection error: unknown error number" in MariaDB

This documentation is part of the Troubleshooting guide. View the full guide here: Common MariaDB issues and their solutions.

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If you encounter the following error:

ERROR 2026 (HY000): SSL connection error: unknown error number

This typically indicates that the database client software you are using does not support the modern TLS protocols required by secure MariaDB servers.

MariaDB instances, particularly those hosted on platforms like Stackhero, implement updated TLS protocols and secure cryptographic suites to ensure strong security practices. Consequently, connections using outdated protocols, such as TLS v1.1, will fail.

To resolve this issue, update your database client software to a version that supports the latest TLS standards. Regular updates to your client software will help maintain secure and compatible connections to MariaDB servers.