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Set SSH Key Permissions
SSH refuses keys with loose permissions. Get the exact chmod for your key files.
로그인 불필요
| Read | Write | Execute | Value | |
|---|---|---|---|---|
| owner | 7 | |||
| group | 5 | |||
| other | 5 |
Octal (editable)
rwxr-xr-x
Symbolic
Command
$ chmod 755 filename
Common presets
SSH Keys tips
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Private keys must be 600 (owner read/write only). SSH will refuse to use a key that's group- or world-readable.
💡
The .ssh directory itself should be 700, and authorized_keys should be 600.
🎯
Public keys (.pub) can be 644 — they're meant to be shared.
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