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Study of the Week: Who Knew Banks and Bistros Had So Much in Common? (Besides My Credit Card Bill)

Study of the Week: Who Knew Banks and Bistros Had So Much in Common? (Besides My Credit Card Bill)

Ever thought about what a high-flying banker and a hardworking hotelier have in common? Beyond the obvious fact that they both probably deal with a lot of spreadsheets, it turns out their industries face a surprisingly similar threat: the "insider." And no, I’m not talking about a

By Keystone Collective 18 Jun 2025
Your Linux Server's Night Audit: Why auditd Needs an Upgrade from Pen & Paper

Linux

Your Linux Server's Night Audit: Why auditd Needs an Upgrade from Pen & Paper

Ever checked into a charming old hotel and marvelled at the "vintage" technology? Think key cards that sometimes work, Wi-Fi that's powered by hopes and dreams, and a front desk system that looks suspiciously like a green-screen terminal from 1988. It's quaint, it'

By Keystone Collective 18 Jun 2025
The Linux Bridge: Your Firewall's Secret Blind Spot (and How to Fix It!)

Linux

The Linux Bridge: Your Firewall's Secret Blind Spot (and How to Fix It!)

Ever spent hours meticulously crafting iptables rules, feeling like a Gandalf, only to discover mysterious traffic flowing through your Linux box untouched? Perhaps you're running VMs, Docker containers, or just a simple bridge to connect a wired and wireless segment. You've got your firewall locked down

By Keystone Collective 18 Jun 2025
Short Stories: The Logbook's Lies (Part 1)

Stories

Short Stories: The Logbook's Lies (Part 1)

lock-1 By Keystone Collective 18 Jun 2025
The Silent Guardian: Linux's rp_filter and Why It's Not Just for Network Geeks

The Silent Guardian: Linux's rp_filter and Why It's Not Just for Network Geeks

Ever felt like your Linux server has a mind of its own, subtly dropping packets when you're sure your firewall's configured perfectly? Chances are, you've stumbled upon a hidden gem (or headache, depending on your routing setup): the rp_filter, or Reverse Path Filtering.

By Keystone Collective 18 Jun 2025
Welcome to the Rabbit Hole!

News

Welcome to the Rabbit Hole!

Ever feel like the world is a giant, tangled ball of yarn? One moment you're pondering the latest cyber threat, the next you're wondering how it ties into global politics, or why your hotel's Wi-Fi is so terrible. (Spoiler alert: sometimes, it's

By Keystone Collective 21 May 2025
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The Keystone Collective

Where curiosity meets the keyboard, and chaos finds clarity.

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The Keystone Collective

Where curiosity meets the keyboard, and chaos finds clarity.