Posted inSecurity
GPG for Linux: A Practical Guide to Encrypting Files and Signing Data
Master GnuPG on Linux. This guide walks you through asymmetric encryption, signing files, and the pro-level key management habits that prevent data loss.
Posted inLinux
Taking Control of Linux PAM: A Practical Guide to System Authentication
Learn how to configure Linux Pluggable Authentication Modules (PAM) to enforce account locking, time-based access, and robust security policies without locking yourself out.
Posted inSecurity
Stop DNS Spoofing: A Hands-on Guide to DNSSEC Zone Signing and Validation
DNSSEC adds cryptographic integrity to your domain, stopping attackers from hijacking your traffic. Learn how to sign zones with BIND, manage keys, and build a secure chain of trust.
Posted inSecurity
Scan Docker Images for CVEs with Trivy: A CI/CD Security Guide
Learn how to secure your Docker containers by integrating Trivy into your CI/CD pipeline. This guide covers manual scanning, automated CVE detection, and how to fail builds on critical vulnerabilities.
Posted inDevOps
Stop Leaking Secrets: A Practical Guide to Integrating Gitleaks into CI/CD
Accidentally pushing API keys to GitHub can be a nightmare. This guide shows you how to integrate Gitleaks into your CI/CD pipeline to automatically catch secrets before they leak.
Posted inDatabase
The Practical Guide to Database Connectivity: Python, Node.js, and PHP
A practical, no-nonsense guide to connecting Python, Node.js, and PHP to MySQL and PostgreSQL. Learn about drivers, secure environment variables, and how to stop SQL injection.
Posted inLinux
Beyond Chmod: Mastering Linux ACLs and Chattr for Granular Security
Standard Linux permissions often fall short in complex environments. This guide shows you how to use ACLs for granular access and Chattr attributes to make critical files immutable.
Posted inSecurity
Linux Sudoers Hardening: Don’t Let ‘Root for Everyone’ Kill Your Production Environment
Broad sudo permissions are a recipe for 2 AM outages. Learn how to implement the Principle of Least Privilege using command aliases, NOEXEC tags, and secure logging to protect your Linux servers.
Posted inSecurity
CrowdSec on Linux: Moving Beyond Fail2Ban to Community-Powered Security
Move beyond Fail2Ban. Learn how to deploy CrowdSec on Linux to leverage community-driven threat intelligence and block automated attacks in real-time.
Posted inSecurity
Deploy Keycloak on Docker: Build a Centralized IAM and SSO System for Your Apps
Running auth logic in every application separately creates security gaps, duplicated code, and user frustration. This guide walks through deploying Keycloak on Docker with PostgreSQL to build a centralized IAM and SSO system — one login, consistent security policies, and MFA across all your apps.