Security Archives

Hardening etcd and Kubernetes API Server: Encryption at Rest, mTLS, and Credential Leak Detection

August 27, 2026

etcd stores every Kubernetes Secret and cluster state — by default, without encryption. This guide covers enabling encryption at rest, verifying mTLS between control plane components, and scanning for credential leaks to lock down the most critical layer of your cluster.

Security

Beyond the Perimeter: Defeating Insecure Deserialization in Java, PHP, and Python

August 26, 2026

Insecure deserialization is a silent killer in modern web apps. Explore how gadget chains lead to RCE in Java, PHP, and Python, and learn production-grade strategies to secure your data.

Security

HTTP Request Smuggling: Breaking the Chain Between Proxies and Backends

August 26, 2026

Discover how HTTP Request Smuggling exploits discrepancies between proxies and backends. Learn to identify CL.TE and TE.CL vulnerabilities and how to secure your stack using HTTP/2 and hardened proxy configurations.

Security

Subdomain Takeover: How to Find and Fix Dangling DNS Before Hackers Do

August 25, 2026

Subdomain takeovers are a silent but high-impact threat. This guide walks you through using Subfinder and Nuclei to build an automated system that detects and fixes dangling DNS records.

Security

Hunting Lateral Movement: Practical Detection with osquery, Zeek, and Sigma

August 25, 2026

Lateral movement is how hackers turn a single compromised laptop into a full-scale data breach. Learn to use osquery, Zeek, and Sigma to detect and stop them.

Security

Real-time Linux Security with Tetragon and eBPF: Stopping Attacks at the Kernel Level

August 25, 2026

Move beyond reactive logging. Learn how to use Tetragon and eBPF to monitor kernel events and block malicious processes like unauthorized file access and network scans in real-time.

Security

Stop Leaving Your Internal Tools Exposed: A Guide to OAuth2 Proxy

August 11, 2026

Secure any web application in minutes. This guide shows you how to use OAuth2 Proxy to add Google and GitHub authentication to your internal tools.

Security

Secure Your Linux Data: Implementing LUKS 2FA with YubiKey

August 11, 2026

Upgrade your Linux disk security by adding YubiKey 2FA to LUKS encryption. This tutorial covers setting up HMAC-SHA1 challenge-response to ensure your data stays safe even if your password is compromised.

Security

Hardening /dev/shm: Stop Malware from Hiding in Your Server’s RAM

August 2, 2026

Is your /dev/shm directory a security hole? Learn how to use mount flags like noexec and nosuid to prevent attackers from running malware directly from your server's RAM.