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Enforce Password Complexity

Security & TLS · medium · solved in-browser (no VM needed) · 3 tiered hints

Write /etc/security/pwquality.conf enforcing: minimum length 12 (minlen=12), at least one digit (dcredit=-1), at least one uppercase letter (ucredit=-1), at least one other/special character (ocredit=-1), and at least 3 characters changed from the previous password (difok=3). Use key = value lines. (Authored config, graded structurally — the engine isn't run here.)

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