Linux Server Hardening ❲PC❳

Configure automatic security updates using tools like unattended-upgrades on Debian/Ubuntu or dnf-automatic on RHEL/Fedora. 2. Secure Access (SSH Hardening)

Run system updates immediately upon setup (e.g., apt update && apt upgrade for Debian/Ubuntu or dnf update for RHEL/Fedora). Linux Server Hardening

The most critical step is ensuring all software is current to close known vulnerabilities. The most critical step is ensuring all software

Prevent direct root access by setting PermitRootLogin no in /etc/ssh/sshd_config . A default Linux installation is often a "blank

Linux server hardening is the process of reducing a system's attack surface to protect against unauthorized access and data breaches. A default Linux installation is often a "blank canvas" rather than a fortress; hardening provides the necessary reinforcement.

Follow the principle of least privilege to limit what users and services can do.

Below is a structured write-up covering the essential stages of a Linux hardening project. 1. Update and Patch Management