Open Source & Developer Tooling
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Open source software that powers real production systems, and the macOS tooling that keeps high-output engineering teams productive.
Java’s NullPointerException Problem: Causes and Fixes
Every Java developer has seen it. The stack trace that ends conversations. The production incident that ruins a Friday afternoon. The crash that leads to the post-mortem nobody wants to write. NullPointerException. Three words that have probably cost the industry more money, time, and credibility than any other single class of bug in software history. […]
Read more →curl Command: Get HTTP Response Headers in Terminal
Web devs need to know the http headers their apps/webpages. This can be easily achieved using a browser plugin for Chrome or Firefox. But I prefer to use the command terminal, and curl makes this really easy.
Read more →Mac Routing Table: Redirect Website Traffic to en0
This was a hard article to figure out the title for! Put simply, your mac book has a route table and if you want to move a specific IP address or dns from one interface to another, then follow the steps below: First find the IP address of the website that you want to re-route […]
Read more →Memgraph & Claude Desktop: Detect Mule Accounts on macOS
1. Introduction This guide walks you through setting up Memgraph with Claude Desktop on your laptop to analyze relationships between mule accounts in banking systems. By the end of this tutorial, you’ll have a working setup where Claude can query and visualize banking transaction patterns to identify potential mule account networks. Why Graph Databases for […]
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CloudScale PageViews: Fix WordPress Analytics Behind Cloudflare
If you run a WordPress site behind Cloudflare, your page view numbers are lying to you. Jetpack Stats, WP Statistics, Post Views Counter and nearly every other WordPress analytics plugin share the same fatal flaw: they count views on the server. When Cloudflare serves a cached HTML page (which is the entire point of using […]
Read more →Fix DNS Issues Using dig and whois on Mac OS X
When debugging DNS issues its important to verify the local DNS response with the authoritive DNS nameserver. With dig we can directly query the authoritative name servers for a domain, these are the DNS servers that hold the authoritative records for the domains DNS zone; the source of truth. If a correct response is received […]
Read more →How to Publish Code on GitHub: Automate It Right
GitHub is not just a code hosting platform. It is your public engineering ledger. It shows how you think, how you structure problems, how you document tradeoffs, and how you ship. If you build software and it never lands on GitHub, as far as the wider technical world is concerned, it does not exist. This […]
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CloudScale Free WordPress Backup & Restore Plugin Guide
I’ve been running this blog on WordPress for years, and the backup situation has always quietly bothered me. The popular backup plugins either charge a monthly fee, cap you on storage, phone home to an external service, or do all three. I wanted something simple: a plugin that makes a zip file of my site, […]
Read more →Enable Apps From Anywhere on Mac: Terminal Command Guide
Previously Macs would allow you to install software from anywhere. Now you will see the error message “NMAPxx.mpkg cannot be opened because its from an unidentified developer“. If you want to fix this and enable apps to be install from anywhere, you will need to run the following command line: Once you have run the […]
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CVE-2024-3094: Detecting the XZ Utils SSH Backdoor
Executive Summary CVE-2024-3094 represents one of the most sophisticated supply chain attacks in recent history. Discovered in March 2024, this vulnerability embedded a backdoor into XZ Utils versions 5.6.0 and 5.6.1, allowing attackers to compromise SSH authentication on Linux systems. With a CVSS score of 10.0 (Critical), this attack demonstrates the extreme risks inherent in […]
Read more →Get Process Name Without Admin Rights in C# (3 Steps)
Unfortunately, the following (seemingly harmless code) requires administrator rights (and on Windows 2003 you will need to be member of “Performance Monitor Users” group): In most cases this is not appropriate and certainly not in a Citrix environment. If you call it without the correct permissions you the following stack dump: Below is a light […]
Read more →nmap Vulners Script: Quick Vulnerability Scanning on macOS
This is a very short post to help anyone quickly setup vulnerability checking for a site they own (and have permission to scan). I like the vulners scripts as they cover a lot of basic ground quickly with one script.
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