Implementing Sudoers File for Fine-Grained Access Control
Tutorial Overview In this tutorial, you’ll learn to configure the sudoers file to grant specific commands and permissions to individual users, allowing fine-grained.
User and Permissions
Cybersecurity
Security Machine Tutorial for HARDN-Hardened Debian
This tutorial builds upon the HARDN project’s baseline hardening, then layers in encryption, network obfuscation, kernel and runtime hardening, advanced authentication, secure boot,.
Cybersecurity
SSH Secure Configuration
Overview on SSH secure configuration OpenSSH is the implementation of the SSH protocol. SSH Secure Configuration is recommended for remote login, making backups,.
Articles
AI-Powered Cyberattacks: The Emerging Threat Landscape
Introduction As artificial intelligence (AI) rapidly evolves, so does its dual-use potential. While AI enables transformative benefits across industries—from healthcare to finance—it also.
User and Permissions
User Accounts: Create and Manage
Tutorial Overview This tutorial explains how to create, manage, and configure user accounts on a Debian-based system. You’ll learn how to add new.
Articles
Critical HARDN Security Scripts Vulnerabilities: A Deep Dive
Introduction HARDN is a collection of security hardening scripts designed to enhance system security by enforcing MAC address randomization, TOR routing, directory lockdowns,.
Cybersecurity
UFW Firewall Configuration
Overview of UFW Firewall Configuration UFW (Uncomplicated Firewall) is a front-end for managing iptables firewall rules on Linux. It simplifies the process of.
Monitoring and Performance
Disk Usage Analysis with df, du, and ncdu
Tutorial Overview Learn to analyze and manage disk space usage using df, du, and ncdu on Debian-based systems. These tools help identify storage.
Articles
The Do’s and Don’ts of Cybersecurity for Internet-Exposed Servers
Introduction to the Do’s and Don’ts of Cybersecurity With the increasing reliance on internet-connected infrastructure, securing servers exposed to the internet is a.
Automation with Scripting
Automated Script Deployment and Execution with SSH
Purpose of the Script The provided script automates the process of uploading and remotely executing various Bash and Python scripts on multiple servers..