This article provides a step-by-step guide for debugging connection issues between an MCP server and a PostgreSQL database. It emphasizes that the problem often lies lower in the network stack rather than with the MCP server itself. The recommended debugging order includes checking configuration, DNS, TLS, pg_hba.conf, authentication, authorization, and pooling. The guide stresses the importance of verifying reachability from the MCP runtime environment and ensuring the connected role has the correct permissions, not just a successful password authentication. AI
IMPACT Provides a detailed technical guide for developers integrating MCP servers with PostgreSQL databases.
RANK_REASON The item describes a technical troubleshooting guide for a specific software integration.
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