linux-security-hardener

To harden a Linux server, you need to apply secure SSH configurations, firewall rules, kernel sysctl settings, and auditd rules. This process is automated by generating a master hardening script and drop-in configs to reduce the server's attack surface.

Automating SSH hardening and firewall configuration involves generating ready-to-apply scripts that enforce secure defaults. You can use a generated master script to automatically apply drop-in SSH configs, firewall rules, and fail2ban settings specifically for Ubuntu and Debian environments.

Yes, this Linux server hardening approach works with RHEL, Rocky, AlmaLinux, Arch, Ubuntu, and Debian. It generates platform-appropriate security configurations, including kernel sysctl settings and auditd rules tailored to these specific distributions.

You can use this to harden both fresh VPS installs and existing Linux servers. The generated hardening plan applies system updates, unattended upgrades, and auditd rules safely to servers already in production without requiring a clean slate.

An automated Linux server hardening plan includes drop-in SSH hardening configurations, firewall rules, kernel sysctl settings, auditd rules, and fail2ban setup. These are packaged into a master script to apply changes automatically.

No, you do not need to manually configure kernel sysctl settings and auditd rules. The hardening process generates prioritized, ready-to-apply configurations and a master script that automates these kernel-level security changes for you.