SSH Errors
How to fix 'Permission denied (publickey)'
The fastest way to diagnose private key permission issues, wrong keys, and authorized_keys mistakes.
Read articleBuilt for DevOps, SREs, and Linux engineers
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Input log
[2026-03-30 08:12:03] WARN Retrying SSH connection to 10.0.0.15
[2026-03-30 08:12:07] ERROR Permission denied (publickey,password)
[2026-03-30 08:12:08] ERROR Failed to connect to remote host
[2026-03-30 08:12:07] ERROR Permission denied (publickey,password)
[2026-03-30 08:12:08] ERROR Failed to connect to remote host
TraceFix result
Root cause
SSH authentication failure
Explanation
The server rejected the SSH key. This usually happens when the wrong private key is used or the key permissions are too open.
Suggested fix
chmod 600 ~/.ssh/id_rsa
This is what you get in seconds.
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01
Paste logs or upload a file
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02
TraceFix analyzes the signal
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03
Get the root cause and next steps
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Why TraceFix
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