VPS Harden Toolkit

Idempotent VPS hardening scripts for Ubuntu with dry-run and lockout protection

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VPS Harden Toolkit is a set of idempotent hardening scripts for Ubuntu VPS servers, covering SSH, firewall rules, fail2ban, kernel tuning, auditd, and SOPS-managed secrets, with an optional AI-agent workspace security mode. It runs dry-run first with lockout protection, aimed at sysadmins who want to harden a self-managed server without manually configuring each piece.

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