Access denied — 2 Technical Articles

Aug 12, 2025 · Databases

Why OceanBase Driver Throws Access Denied in Kubernetes and How to Resolve

This article analyzes why an OceanBase JDBC driver fails with "Access denied" errors when deployed in Kubernetes, compares it with the MySQL driver, explains the role of IP whitelist verification, and provides step‑by‑step troubleshooting, configuration adjustments, and preventive measures.

Access deniedIP whitelistJDBC driver

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Why OceanBase Driver Throws Access Denied in Kubernetes and How to Resolve

Aikesheng Open Source Community

Jul 15, 2019 · Databases

Common Causes and Fixes for MySQL Error 1045 (Access Denied)

This article enumerates the typical reasons why MySQL returns error 1045 – such as connecting to the wrong host, using a non‑existent user, host‑based access restrictions, incorrect passwords, special characters in Bash, and missing SSL – and provides step‑by‑step commands to diagnose and resolve each issue.

Access deniedDatabase AuthenticationError 1045

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Common Causes and Fixes for MySQL Error 1045 (Access Denied)