OneLinersCommand workbench
Verified diagnostic signature

MySQL accepted transport but rejected the account, database, host, or authentication method.

Match output from mysql, 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

Public Key Retrieval is not allowed

OneLiners matches this pattern in your browser. Your pasted output is not stored or indexed.

Likely causes

What usually produces this signal

  1. Wrong account or database
  2. Host grant mismatch
  3. Client/server authentication mismatch
  4. TLS or key retrieval policy
Safe next checks

Collect evidence before changing the system

01

Check whether a TCP port accepts connections

nc -vz <host> <port>

The output matches the expected target and exits without an error.

02

Inspect a remote TLS certificate

openssl s_client -connect <host>:<port> -servername <host> </dev/null 2>/dev/null | openssl x509 -noout -subject -issuer -dates

The output matches the expected target and exits without an error.