Verified diagnostic signature
SSH transport succeeded but user authentication did not.
Match output from ssh, 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 identity or user
- Agent offering too many keys
- Server authorization mismatch
- Authentication method disabled
Safe next checks
Collect evidence before changing the system
Show the effective OpenSSH client configuration for a host
ssh -G <host> | sortThe output matches the expected target and exits without an error.
Diagnose an SSH connection without opening an interactive shell
ssh -vvv -o BatchMode=yes -o ConnectTimeout=10 <username>@<host> trueRe-run the corresponding read-only inspection and confirm the intended state.