Infrastructure Engineering: Systems, Networking, Databases & the Internet
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Network architecture, internet protocols, database and systems design, and the infrastructure engineering decisions that determine whether real production systems hold up under load.
Test HTTP/2 Max Concurrent Streams: Tools & Guide
1. Introduction Understanding and testing your server’s maximum concurrent stream configuration is critical for both performance tuning and security hardening against HTTP/2 attacks. This guide provides comprehensive tools and techniques to test the SETTINGS_MAX_CONCURRENT_STREAMS parameter on your web servers. This article complements our previous guide on Testing Your Website for HTTP/2 Rapid Reset Vulnerabilities from […]
Read more →iperf3 Guide: Top 10 Network Performance Testing Use Cases
When something is “slow” on a network, opinions arrive before evidence. Storage teams blame the network, network teams blame the application, and application teams blame “the cloud”.☁️ iperf3 cuts through that noise by giving you hard, repeatable, protocol-level facts about throughput, latency behavior, and packet loss. This post explains what iperf3 actually measures, how it […]
Read more →Mac: Find Open Ports and IP Addresses with lsof & netstat
Below is a dump of examples of doing pretty much the same thing differently. I mostly use netstat and lsof, coupled with some bash scripts. You can argue that this is overkill, but below is a simple bash function that you can paste into terminal and call it whenever you want to see which application/process […]
Read more →Mac OS X: Find Which Network Interface Routes Traffic
If you have multiple connections on your device (and maybe you have a zero trust client installed); how do you find out which network interface on your device will be used to route the traffic? Below is a route get request for googles DNS service: If you have multiple interfaces enabled, then the first item […]
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Fix Raspberry Pi Boot Failures: SD to NVMe in 5 Steps
A real-world guide to making your Pi bulletproof, from SD card corruption to NVMe migration I learned this lesson the hard way. My Raspberry Pi 5 was happily serving a production WordPress site when I rebooted it. Two minutes later there was no SSH, no site, just a solid red light staring back at me. […]
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DNS Lookup with DIG: Query Records & Trace Resolution
DIG is an awesome command line utility to explore DNS. Below is a quick guide to get you started. Query Specific Name Server By default, if no name server is specified, dig will use the servers listed in /etc/resolv.conf file. To view the default server use: You can override the name server against which the query will be executed, […]
Read more →Model Context Protocol: Enterprise Implementation Guide
The Model Context Protocol (MCP) represents a fundamental shift in how we integrate Large Language Models (LLMs) with external data sources and tools. As enterprises increasingly adopt AI powered applications, understanding MCP’s architecture, operational characteristics, and practical implementation becomes critical for technical leaders building production systems. 1. What is Model Context Protocol? Model Context Protocol […]
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CloudScale SEO AI Optimiser: Free WordPress SEO Plugin
Written by Andrew Baker | February 2026 Download the plugin here: https://wordpress.org/plugins/cloudscale-seo-ai-optimizer/ S3 download (updated frequently): https://andrewninjawordpress.s3.af-south-1.amazonaws.com/cloudscale-seo-ai-optimizer.zip I spent years working across major financial institutions watching vendors charge eye-watering licence fees for tools that were, frankly, not that impressive. That instinct never left me. So when I wanted serious SEO for my personal tech blog, I […]
Read more →How to Find and Set the MTU on Windows (Step-by-Step)
If you have just changed ISPs or moved house and your internet suddenly starts misbehaving the likelihood is your Maximum Transmission Unit (MTU) is set too high for your ISP. The default internet facing MTU is 1500 bytes, BUT depending on your setup, this often needs to be set much lower. Step 1: First check […]
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QUIC: The Protocol That Breaks Your Site Without Warning
Why It Exists, What It Gets Wrong, and How to Diagnose and Fix It Andrew Baker · andrewbaker.ninja · 2 May 2026 1. Why TCP Was a Problem QUIC is a complete replacement for the TCP transport layer. To understand why that replacement was necessary, you need to understand what TCP does internally and where […]
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Windows Server vs Linux for Enterprises: 10 Key Differences
Enterprise operating systems for servers, are not chosen because they are liked. They are chosen because they survive stress. At scale, an operating system stops being a piece of software and becomes an amplifier of either discipline or entropy. Every abstraction, compatibility promise, and hidden convenience eventually expresses itself under load, during failure, or in […]
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Why Technology Teams Resist New Technology and What Actually Gets Them to Adopt It
Every technologist eventually meets the same moment. The team agrees that an existing technology has reached the end of its useful life. Everyone agrees the replacement is the right direction. And then, month after month, the team keeps building on the old platform anyway. This is not usually laziness, and it is not usually stubbornness […]
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