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Setting Up OpenSSH Server on Fedora: SSH Keys, sshd_config Hardening, and firewalld Integration

By admin May 25, 2026

A practical guide to installing and hardening OpenSSH Server on Fedora: key-based authentication (ED25519), disabling password auth, configuring sshd_config via drop-in files, and integrating firewalld with zone management. The standard workflow for production and development server environments.

Security

Linux Server Security Audit with Lynis: From Installation to a Hardening Index of 80+

By admin March 8, 2026

Lynis runs directly inside your server and checks over 200 configuration points that remote scanners simply can't see. This guide walks through installation, interpreting results, and fixing real-world warnings — from SSH to kernel hardening — to push your hardening index from 55 up to 80+.