Quiz · 6 questions
🔒 Security Hardening
Make your fleet boring to attackers
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Quiz
01What permission should ~/.ssh/id_ed25519 (private key) have?
02What does PermitRootLogin no do?
03Why do SSH certificates scale better than authorized_keys?
04First action when you suspect SSH compromise?
05What does ssh-audit check?
06Why is fail2ban still useful with key-only SSH?
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