Security – Page 6 – ITFROMZERO

Git Filter-Repo: Permanently Remove Sensitive Data and Large Files from Repository History

By admin April 18, 2026

git-filter-repo is the officially recommended Git tool for permanently removing sensitive files, API keys, passwords, and large files from your entire repository history. This guide covers everything from installation and file removal to secret replacement, force pushing, and preventing future incidents.

Security

Implementing End-to-End TLS/SSL: Don’t Leave Data ‘Exposed’ in Your Internal Network

By admin April 17, 2026

Don't let traffic between your Web Server and Database run 'exposed'. A detailed guide on implementing End-to-End TLS/SSL for comprehensive data protection within your internal network.

Docker

Docker Secrets: Don’t Expose Passwords via a Clumsy ‘inspect’ Command

By admin April 17, 2026

Learn how to use Docker Secrets to protect passwords and API keys instead of exposing them via environment variables. A practical guide for Swarm and Compose v2.

Security

Mastering Nuclei: The ‘Killer’ Tool for Automated Web and Infrastructure Vulnerability Scanning

By admin April 14, 2026

A guide to using Nuclei - the most powerful template-based vulnerability scanner today. Practical tips on installation and automated notification integration for IT pros.

Centos

ClamAV Installation Guide on CentOS Stream 9: Complete Server Malware Protection

By admin April 13, 2026

A detailed guide on installing ClamAV on CentOS Stream 9. Learn how to configure automated malware scanning, resolve SELinux errors, and optimize RAM for low-spec servers.

Development

Refresh Token Rotation: The Ultimate JWT Security Safeguard for Node.js

By admin April 13, 2026

Level up your Node.js security with Refresh Token Rotation. A detailed guide on preventing token abuse while maintaining a seamless user experience.

Security

Trapping SSH Hackers with Cowrie Honeypot: How I Caught Malware and Watched Intrusion Behavior Live

By admin April 12, 2026

Honeypots are a proactive way to trap attackers and study intrusion patterns. This article guides you through installing Cowrie on Linux to simulate SSH services, enabling you to collect malware and replay hacker sessions.

Security

CSP for Nginx & Apache: A Powerful ‘Shield’ Against XSS for Your Website

By admin April 12, 2026

Configuring Content Security Policy (CSP) is a vital step in protecting your website from XSS. Check out this detailed guide for Nginx and Apache to help your site achieve an A+ security rating.

Security

Building an Internal Certificate Authority with step-ca: Say Goodbye to LAN Security Warnings

By admin April 11, 2026

Say goodbye to red security warnings in your LAN. A detailed guide on building an internal Certificate Authority (CA) with step-ca and automating SSL via ACME.

Security

Mastering SOPS for Secret Encryption: Stop API Key Leaks on Git

By admin April 10, 2026

Stop leaking API keys on Git! Here is a detailed guide on using Mozilla SOPS to encrypt secrets in YAML/JSON files with PGP. The ultimate security solution for Devs and DevOps.