Verified diagnostic signature
PostgreSQL transport succeeded but identity, database, or TLS expectations do not match.
Match output from postgresql, understand the likely cause, then continue with sourced, read-only checks.
- Confidence
- high
- Platforms
- linux · macos · windows
- Verified
- 2026-07-24
Recognized output
Signature matched locally
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Likely causes
What usually produces this signal
- Wrong role or database
- Credential mismatch
- TLS mode mismatch
- Connection string mismatch
Safe next checks
Collect evidence before changing the system
Check whether a TCP port accepts connections
nc -vz <host> <port>The output matches the expected target and exits without an error.
Inspect a remote TLS certificate
openssl s_client -connect <host>:<port> -servername <host> </dev/null 2>/dev/null | openssl x509 -noout -subject -issuer -datesThe output matches the expected target and exits without an error.