linux-security Archives - Page 2 of 4

Hardening the Linux Kernel: A Practical Guide to IMA Configuration

May 22, 2026

Secure your Linux environment by enabling the Integrity Measurement Architecture (IMA). Learn how to detect file tampering in real-time using kernel-level hashing and TPM integration.

Security

Defending Against ARP Spoofing and Man-in-the-Middle Attacks on Linux with arpwatch and arptables

May 21, 2026

ARP spoofing lets an attacker silently intercept all traffic on your local network — and most standard security setups miss it entirely. This guide covers how to detect ARP-based Man-in-the-Middle attacks using arpwatch, block them with static ARP entries and arptables, and build a lightweight monitoring script for any Linux machine.

Security

6 Months of Linux Threat Hunting with Chainsaw and Sigma: A Field Report

May 15, 2026

Ditch reactive logging. I spent six months using Chainsaw and Sigma rules to build a proactive Linux threat hunting workflow that scans 10GB of logs in seconds.

Security

Hardening Linux: Using OpenSCAP to Automate CIS Benchmark Compliance

May 4, 2026

Stop guessing your server's security status. Learn to use OpenSCAP to audit Linux systems against CIS Benchmarks, replacing manual checklists with automated, repeatable security.

Security

Hunting Rootkits: A Practical Guide to Linux RAM Forensics with Volatility 3

April 26, 2026

Move beyond basic logs. This practical guide shows you how to use Volatility 3 to capture Linux RAM and uncover the most stealthy rootkits and hidden processes.

Security

Hardening the Kernel: How I Use Seccomp and Linux Capabilities to Stop Escalation

April 24, 2026

Stop privilege escalation before it starts. A senior engineer explains how to use Seccomp and Linux Capabilities to shrink your kernel attack surface based on real-world incident response.

Security

Kill the 2 AM Password Prompt: Auto-Unlock LUKS with TPM 2.0

April 21, 2026

Stop typing LUKS passphrases manually. This guide shows you how to use TPM 2.0 and Clevis to securely automate disk decryption on Linux, ensuring your servers reboot without intervention.

Security

Linux Ransomware: Building the ‘Impossible to Encrypt’ Server

April 19, 2026

Recovering from ransomware at 2 AM is a nightmare. Learn how to use Linux immutable attributes and S3 Object Lock to build a server that physically rejects encryption attempts.

Security

Stopping BadUSB: My 6-Month Experience Hardening Linux with USBGuard

April 18, 2026

Physical USB ports are a massive security blind spot. This guide shows you how to use USBGuard to whitelist trusted devices and block BadUSB attacks on Linux.

Security

Linux Server Security Auditing: Automating Hardening with Lynis

April 15, 2026

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.