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.
The Legacy Choice: Why x86 in the Data Centre Is Now an Expensive Decision, Not a Default
The economics crossed the tipping point quietly. Most enterprises missed it. The ones who noticed are not going back. 1. How Defaults Become Legacy Every technology that eventually becomes legacy spent years being the obvious choice. Nobody chose x86 over anything. It was simply there, it worked, the tooling was built around it, the hiring […]
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Browser curl Wrapper: Bypass Bot Filters, Load Test, and Defeat TLS Fingerprinting
WordPress Plugin Crashed Your Site: Restore From Backup Instead You updated a plugin five minutes ago. Maybe it was a security patch. Maybe you were trying a new caching layer. You clicked “Update Now,” saw the progress bar fill, got the green tick, and moved on with your day. Now the site is down. Not […]
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AI vs Salesforce: The True Cost of Enterprise CRM in 2025
When a $3 API call can replace a $165 per user per month platform, the financial mathematics of enterprise software fundamentally change. 1. The New Economics of Customer Engagement Something fundamental shifted in 2024. The capabilities that once justified six and seven figure enterprise software contracts became commoditised overnight. Not gradually, through slow competitive erosion, […]
Read more →SEO and AEO Page Audit Script: A Technical Guide
Search engines no longer operate alone. Your content is now consumed byGoogle, Bing, Perplexity, ChatGPT, Claude, Gemini, and dozens of otherAI driven systems that crawl the web and extract answers. Classic SEO focuses on ranking. Modern discovery also requires AEO (Answer Engine Optimization) which focuses on being understood and extracted by AI systems. A marketing […]
Read more →Fix SSH WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED
If the fingerprint of your remote host changes you will see the following error message appear: There are many ways to fix this. The easiest of which is simply to delete your “known_hosts” file. This will mean you just need to accept new finger prints on all your SSH hosts. Yes, this is very lazy…
Read more →Check SPF, DKIM and DMARC Email Security DNS Records
There are three basic ways to secure email, these are: Sender Policy Framework (SPF), Domain Keys Identified Mail (DKIM), Domain-based Message Authentication, Reporting & Conformance (DMARC) definitions. Lets quickly discuss these before we talk about how to check if they have been setup: SPF helps prevent spoofing by verifying the sender’s IP address SPF (Sender […]
Read more →K8GB: Cloud Native GSLB for Kubernetes Explained
Today I am a happy bunny!!!! Yury Tsarev (a very clever dude) did a presentation to one of the Kubernetes co-founders Tim Hockin. The demo was one of absa banks opensource projects called K8GB (a cloud native GSLB for K8s): https://www.k8gb.io/ Why do I like K8GB? Because it uses a single CRD that integrates to […]
Read more →HTTP/2 Rapid Reset CVE-2023-44487: Test Your Server on macOS
Introduction In August 2023, a critical zero day vulnerability in the HTTP/2 protocol was disclosed that affected virtually every HTTP/2 capable web server and proxy. Known as HTTP/2 Rapid Reset (CVE 2023 44487), this vulnerability enabled attackers to launch devastating Distributed Denial of Service (DDoS) attacks with minimal resources. Google reported mitigating the largest DDoS […]
Read more →macOS: Find Processes Using a Specific Remote Port
I find this script useful for debugging which processes are talking to which remote port. Example Usuage:
Read more →Why Least Privilege Security Is a Lie: 3 Root Causes
In technology, there is a tendency to solve a problem badly by using gross simplification, then come up with a catchy one liner and then broadcast this as doctrine or a principle. Nothing ticks more boxes in this regard, than the principle of least privileges. The ensuing enterprise scale deadlocks created by a crippling implementation […]
Read more →What Is Minification and How to Test If It Works
1. What is Minification Minification is the process of removing everything from source code that a browser does not need to execute it. This includes whitespace, line breaks, comments, and long variable names. The resulting file is functionally identical to the original but significantly smaller. A CSS file written for human readability might look like […]
Read more →qwinsta & rwinsta: Manage Remote Terminal Sessions
I regularly administer Windows 2000 Server and Windows Server 2003 machine using Terminal Services. In W2K I use Terminal Services in Administration mode and in W2K3 I use Remote Desktop. Basically this is the same thing but it’s packaged a bit differently on the two OSes. In both situations there are only 2 users allowed […]
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