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 inSecurity
Linux Server Security Auditing: Automating Hardening with Lynis
Discover how to use Lynis to automate Linux security audits. This guide covers installation, interpreting the Hardening Index, and practical steps to secure your kernel and file system permissions.
Posted inSecurity
Securing the Runtime: A Practical Guide to Deploying Falco on Kubernetes
Don't let runtime threats go unnoticed. This guide shows you how to deploy Falco on Kubernetes using eBPF to monitor system calls and detect suspicious container activity in real-time.
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
Hunting Malware on Linux: A Hands-on Guide to YARA Rules
Master YARA rules to secure your Linux environment. This guide walks you through installation, writing effective detection rules, and automating memory scans to catch hidden threats.
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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 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.
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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
Audit AWS and Azure Security with Prowler: A Practical Guide to Fixing Cloud Drift
Cloud misconfigurations are the leading cause of data breaches in AWS and Azure. This guide covers a professional workflow for using Prowler to automate security audits and close critical infrastructure gaps.
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.