Linux Server Hardening -

Prevent direct root access by setting PermitRootLogin no in /etc/ssh/sshd_config .

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

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. Prevent direct root access by setting PermitRootLogin no

Moving SSH from port 22 to a non-standard port can eliminate up to 99% of automated scans. 3. Identity and Access Management Linux Server Hardening

Securing the primary remote entry point is vital for stopping automated brute-force attacks.

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