Verified diagnostic signature
Redis rejected the command because of authentication, persistence, memory, or startup state.
Match output from redis, 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
NOAUTH Authentication requiredOneLiners matches this pattern in your browser. Your pasted output is not stored or indexed.
Likely causes
What usually produces this signal
- Missing credentials
- Failed persistence
- Memory policy
- Dataset loading
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.
Show Linux memory and swap usage
free -hThe output matches the expected target and exits without an error.
Show priority errors from the current boot
journalctl -p err -bThe output matches the expected target and exits without an error.