Goodbye, nix-darwin!

alikhil.dev · Jun 22 · 🛡️ Sysadmin & Security ·

Why I stopped using nix-darwin on macOS after slow rebuilds, painful updates, installer script issues, and corporate tooling conflicts.

My LaraPlugins Performance Audit: 12 Fixes That Saved my Stressed server

danielpetrica.com · Jun 22 · 🛡️ Sysadmin & Security ·

An 8 GB VPS at 90% memory, 50,000 Cloudflare purge jobs in one cycle, and 12 Horizon supervisors running wild. Here is how I brought LaraPlugins.io back under control, with real numbers.

Bypassing Conditional Access policies that have a resource exclusion

dirkjanm.io · Jun 22 · 🛡️ Sysadmin & Security ·

There is a documented enforcement gap in Conditional Access policies that apply to “all resources” but have an exclusion for at least one resource. What is not documented, is that this gap is much…

Cloudflare is quietly building the agent cloud

remkusdevries.com · Jun 22 · ✨ AI ·

It was Cloudflare’s announcement of Markdown for Agents a few months bac that made everything click for me. I’m revisting the note I had saved in my Obsidian vault in preparation for my…

A weekend in the wool: mapping a Chinese reward-farming underground from one GitHub repo

neurowinter.com · Jun 22 · 🛡️ Sysadmin & Security ·

A weekend that started with a grep.app search for leaked password prefixes and ended in a 16-actor Chinese reward-farming (薅羊毛) ecosystem: its script DRM, its C2, its credential theft, and the civic…

RFC8950: Announce IPv4 with an IPv6 next-hop

anuragbhatia.com · Jun 22 · 🛡️ Sysadmin & Security ·

For the last few days I have been playing with RFC8950 setup, which allows routing of IPv4 on top of IPv6. While logically it’s quite simple, it has a very powerful application towards making…

Fun with Docker, broken networking, remote filesystem mounts, and race conditions on Debian

maroonmed.com · Jun 22 · 🛡️ Sysadmin & Security ·

There's nothing more satisfying than having a clean and problem-free boot sequence.

How to migrate from Gel to Disc

blog.webb.page · Jun 22 · 🧩 Programming ·

The hardest part is getting your data out of Gel in a useable format, the rest is easy (but mind your links on the way in, warning near the end).

Cybersecurity Wiretap #113: From Agentic AI Exploitation to ClickFix Campaigns with a Focus on Defender Zero-Days (week of 06/15/2026)

andysvints.com · Jun 22 · 🛡️ Sysadmin & Security ·

Welcome back to the weekly digest about the Cybersecurity & Threats in the wild. Below you will find a very subjective summary of Cybersecurity events for the prior week. 1.EXPLOITATION OF MODEL…

Design of a Simulated 5G & Wi-Fi IIoT (TSMS) for a Power Grid Cyber Twin System

pixelstech.net · Jun 22 · 🛡️ Sysadmin & Security ·

Design of a Simulated 5G & Wi-Fi IIoT Thermal State Monitoring System (TSMS) for a Power Grid Cyber TwinProject Design Purpose : This article introduces the design and implementation of a…

Tutorial Part 2: Drive, Map & Navigate Your Proscenic M6 Pro in ROS 2

makerspet.com · Jun 22 · 🧩 Programming ·

Tutorial Part 1 got SangamIO running on the vacuum, exposing its motors, wheel encoders, IMU and LiDAR over TCP port 5555. Part 2 connects that to ROS 2 the easy way — a prebuilt Docker image that…

Setting up a Reverse Proxy

lifewaza.com · Jun 22 · 🛡️ Sysadmin & Security ·

The first step on my homelab improvement journey is setting up a reverse proxy. What’s a reverse-proxy? A reverse proxy is a server that sits in front of your other servers. Instead of sending…

Make GitHub Actions Do More For You

mikemcquaid.com · Jun 22 · 🛡️ Sysadmin & Security ·

Merge-queue deploys, robust releases and chores you keep forgetting

Inside the Git Proxy: Capturing What an AI Agent Pushed (Part 2)

jonnyzzz.com · Jun 22 · 🧩 Programming ·

Part 2 — how the git proxy intercepts HTTPS, forces a parseable pack, logs every commit, pins the objects with marker refs, and survives the sharp edges of a signed, atomic protocol.

Understanding Sandboxes: gVisor, Hypervisors, and Firecracker

salmanq.com · Jun 22 · 🛡️ Sysadmin & Security ·

Every time you run a serverless function on AWS Lambda, execute a container on Google Cloud Run, or spin up a GitHub Actions workflow, your code runs on a physical machine shared with hundreds of…

Packagist and Composer security with Jordi Boggiano

opensourcesecurity.io · Jun 22 · 🧩 Programming ·

Josh welcomes Jordi Boggiano the lead maintainer of Composer and Packagist to explain the truckload of security features they’ve recently added. Packagist is the PHP package registry, Composer…

Putting an AI Agent into Production: The Hard Part Was Never the Prompt

xiangpengwan.com · Jun 22 · ✨ AI ·

One day your agent starts giving wrong answers. Nobody touched the code, nobody changed the prompt. Turns out the provider silently swapped the model version behind the same API. In a demo you just…

Use cloudflared for SSH and close port 20

humanwhocodes.com · Jun 22 · 🛡️ Sysadmin & Security ·

Cloudflare tunnels can be used for SSH, meaning you don't need any open incoming ports on your VPS.

Extending MySQL Capabilities with UDFs, Plugins and Components

ronaldbradford.com · Jun 22 · 🛡️ Sysadmin & Security ·

MySQL offers three different approaches to extending the SQL capabilities with the default product you download and install. These are: User Defined Function (UDF) MySQL Manual MySQL Plugin MySQL…

Faster micro-frontends: optimising CDN behaviour for performance

alexocallaghan.com · Jun 22 · 🛡️ Sysadmin & Security ·

How optimising CDN caching improved performance metrics for our microfrontend architecture

GPS spoofing teleported me to Peru, mid-flight

blog.emilburzo.com · Jun 22 · 🛡️ Sysadmin & Security ·

My first encounter with electronic warfare

Build an Asset CDN on AWS with CDK (S3 + CloudFront + Route53 + ACM)

andrewgilliland.dev · Jun 22 · 🧩 Programming ·

Build a fast asset pipeline with a private S3 origin, CloudFront caching, custom DNS, and HTTPS certificates using AWS CDK.

Chain of trust with AI generated code

marirs.net.in · Jun 22 · ✨ AI ·

Introduction Chain of trust has long served as a foundational security principle in computing systems. From secure boot architectures to software supply-chain[1] security, trust is established at a…

deploying post-quantum tls to a $6 vps without losing my mind

jamesmunsch.com · Jun 22 · 🛡️ Sysadmin & Security ·

Backups with Restic: 2-year retrospective

advancedweb.hu · Jun 22 · 🛡️ Sysadmin & Security ·

Around 2 years ago I started looking into how I could back up my laptop and my phone. I went with Restic and multiple backends for storage and I'm fairly happy with the result, even though I…

How to Write to SSDs - Co-Designing DBMS and Flash Storage

gauravsarma.com · Jun 22 · 🧩 Programming ·

. [How to Write to SSDs](optimising-ssd-writes-for-dbms-cover...

DFS Wi-Fi channels are invisible to phones

jamesst.one · Jun 22 · 🛡️ Sysadmin & Security ·

import Detail from "../../components/Detail.astro"; While debugging [Bluetooth and Wi-Fi fighting over 2.4GHz](/posts/bluetooth-wifi-coexistence), I hit a confusing one: my router was happily…

Bluetooth and Wi-Fi fight over 2.4GHz

jamesst.one · Jun 22 · 🛡️ Sysadmin & Security ·

I have a phone running a Snapcast client: it pulls synced audio over Wi-Fi and plays it out to a pair of Bluetooth headphones. It buffered constantly: a few seconds of audio, then a stall, then a…

Five years of Observability at Canonical

simme.dev · Jun 22 · 🛡️ Sysadmin & Security ·

After five years of leading Observability at Canonical, that journey is coming to an end.

Fantastic clear-text passwords and where to collect them (Part 1 - Linux)

dfir.ch · Jun 21 · 🛡️ Sysadmin & Security ·

1. Introduction During Digital Forensics and Incident Response (DFIR) investigations, we frequently observe Threat Actors (TAs) using various methods to harvest clear-text credentials on Linux…

Cracking simple XOR cipher with simulated annealing, part II

yurichev.com · Jun 21 · 🧩 Programming ·

Cracking simple XOR cipher with simulated annealing, part II

I Zeroized My Secret. Or Did I?

ddanilov.me · Jun 21 · 🛡️ Sysadmin & Security ·

If you work with secret keys — signing keys, API tokens, anything that must not leak — you’ve probably written this happy little line and felt good about it: 1 secret.zeroize(); Wiped! Auditor happy,…

PANhunt is now on PyPI

zaferbalkan.com · Jun 21 · 🧩 Programming ·

Why PANhunt exists When I started working in a payment processor, Dionach PANhunt project was already in use on many servers. It was not a tool I discovered later because I wanted to write something…

The Security Blind Spots of Local Agentic AI Ecosystems

thinkmintmedia.blogspot.com · Jun 21 · ✨ AI ·

The Prompts Are Coming From Inside the House: Why Agentic AI Is Becoming the Ultimate Insider Threat Cybersecurity has always been defined by a simple assumption. The attacker exists somewhere…

Teensy Firmware OTA Update Via SSH to Pi5

fpaynter.com · Jun 21 · 🧩 Programming ·

Posted 21 June 2026 After getting OTA via Bluetooth to the onboard HC-05 going for the 2-wheel robot, I had an epiphany; For vision processing the 2-wheel robot uses an on-board Raspberry Pi5 with a…

Avoiding .DS_Store Cache Misses in Bazel

adincebic.com · Jun 21 · 🧩 Programming ·

It is well known that macOS Finder .DS_Store files should never be checked in to a repo, or leave the single machine for that matter. Fairly recently, I noticed that a lot of my iOS resource…

Self-hosting High Availability is just Backups

blog.greg.technology · Jun 21 · 🛡️ Sysadmin & Security ·

Everyone needs backups, we all know it in our bones, but you can also live your life without any backups.

Malware-Laden GitHub Follow-up

commonsware.com · Jun 21 · 🛡️ Sysadmin & Security ·

As I noted ~6 months ago, GitHub has repositories distributing Trojan horse-style malware. A lot of repositories, actually.

Releasing debvulns: CLI for listing Debian vulnerabilities

copyninja.in · Jun 21 · 🧩 Programming ·

Announcing the release of debvulns CLI, a standalone utility built on the debsecan-mcp core logic.

Dendritic flake partitions

simonshine.dk · Jun 21 · 🧩 Programming ·

tl;dr ¶ Some of my sandboxed CLI agents aren’t in nixpkgs, so they ride along as flake inputs. They’re heavy, and were polluting the flake.lock of every machine that consumes the flake.…

http extension for windows updated to include PostgreSQL19 64-bit

postgresonline.com · Jun 21 · 🧩 Programming ·

Updated June 21st, 2026 64-bit package for PostgreSQL 19 http extension v1.7.1 release . For those folks on windows who want to do http gets and posts directly from your PostgreSQL server, we've made…

cuenv: one typed file for your whole project

learncloudnative.com · Jun 21 · 🧩 Programming ·

Most projects don't have a configuration system — they have a pile: a .env file, a Makefile, a CI workflow, and secrets in a fourth place, none of it validated and all of it slowly drifting apart.…

Pas peu fier

ludovic.hirlimann.net · Jun 21 · 🛡️ Sysadmin & Security ·

Donc depuis presque deux ans les enfants ont une machine à eux. Elle tourne sous Linux et je peux donc en prendre la main à distance. Cela m'évite de crier quand ils décident d'ignorer mes demandes…

Replacing pgAgent with pg_timetable: Part 1

postgresonline.com · Jun 21 · 🛡️ Sysadmin & Security ·

pgAgent has been my go to scheduling solution for quite some time. Sadly in 6 months it will be completely retired and the pgAgent UI in pgAdmin will be gone. The main reasons I liked pgAgent were:…

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