Harden a Linux server
Harden Linux servers
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Write an Ansible playbook to harden an Ubuntu 22.04 server following CIS Benchmark Level 1. Include: SSH hardening (key-only auth, disable root), firewall configuration (ufw), fail2ban setup, automatic security updates, kernel parameter hardening via sysctl, filesystem permissions audit, and auditd configuration.
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Pensez à exécuter `ansible-galaxy install devsec.hardening` pour réutiliser des rôles éprouvés, puis adaptez les variables aux règles CIS N1. Le playbook fonctionne idéalement en post‑installation, avant de mettre le serveur en production.
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