Accidentally Functional 馃憢
Hi. Notes on homelab, crypto, and cybersecurity, with the occasional opinion nobody asked for, posted on the rare days something works and I can still remember how. Posts below :)
Copy Fail: 732 bytes that root every Linux box since 2017
A logic bug in the kernel鈥檚 AEAD crypto path lets an unprivileged user write four controlled bytes anywhere in the page cache. The same 732-byte Python script Theori dropped roots Ubuntu, RHEL, SUSE, Amazon Linux, basically every major distro shipped since 2017. Walking through how the chain actually works.
Google Cybersecurity Certificate
Finished the Google Cybersecurity Professional Certificate on Coursera. Here鈥檚 what鈥檚 good, what鈥檚 bad, and how it compares to a university course on the same topic.
Building a secure BLE tree network
A walkthrough of the final project for my security class, a secure ad-hoc Bluetooth network over BLE with a tree topology, mutual auth, ECDH session keys, and DTLS-style end-to-end encryption
The Illusion Of Thinking
Apple pokes the AI bear by claiming that LRMs are actually a scam. Or are they?
What is "Undervolting a CPU"?
A dive into CPU undervolting, where less voltage means cooler temps, lower power draw, and better sustained performance
Motherboard Comprehensive Guide
A practical, mildly obsessive guide to motherboards. From what they control, why they matter, and how not to fry your CPU by trusting marketing fluff
Essential Cisco Router Commands for QuickReference
A quick-reference sheet for cisco CLI commands covering routing, switching, VLANs, NAT, DHCP, and IPv6
Definitive Guide to Hugo & Obsidian
A no-nonsense guide to turning your Obsidian notes into a slick, version-controlled Hugo website with Git and Cloudflare. Minimal friction, maximum vibes
The CrowdStrike Lesson
One vendor, one bad file, 8.5 million blue screens. What July 19th taught me about trusting the software that鈥檚 supposed to be protecting us.