Web

ARIN IPv4 Wait-list Tracking analyzes ARIN’s IPv4 address wait-list and provides statistical insights into wait times and allocation patterns. The Python-based system tracks historical data on IPv4 block requests and clearances to estimate processing times for different network block sizes. The web dashboard displays real-time analytics including current wait-list sizes, estimated wait times for /22, /23, and /24 blocks, and historical trends in IPv4 address allocation. This tool helps network administrators understand IPv4 scarcity patterns and plan address allocation strategies as IPv4 exhaustion continues.

A real-time visualization of day and night regions across the world using accurate solar and lunar positioning calculations. The project renders day/night terminator lines, solar and lunar positions, and smooth twilight gradients on an interactive world map using HTML5 Canvas. The visualization integrates the SunCalc library for astronomical calculations and features optimized pixel-level rendering with support for multiple map projections (Equirectangular and Mercator). Additional features include moon phase visualization, responsive design, timezone customization, and a grayscale mode optimized for e-ink displays. The map updates every minute to reflect current celestial conditions.

Scroller is a web application that displays customizable scrolling text messages in fullscreen mode. The single-page application allows users to configure text content, fonts, colors, scroll speed, and background themes before launching a fullscreen display. The application includes URL hash-based message saving, automatic text scaling to fit screens, and responsive design with light/dark mode support. It’s designed for creating dynamic text displays for presentations, signage, or any scenario requiring large-scale scrolling text output.

WebSerial Bruteforce automatically determines the correct baud rate for UART serial devices by testing common communication speeds and analyzing the returned data. The web application uses the WebSerial API to connect directly to serial devices from the browser without requiring additional software. The tool iterates through standard baud rates and measures the amount of ASCII data returned at each setting, selecting the configuration that produces the most readable output. This is useful for reverse engineering or troubleshooting unknown serial devices where the communication parameters are not documented.

USB Meter is a web application that connects to Atorch power meters via WebBluetooth to log and display electrical measurements. The application reads real-time data including voltage, current, power, energy, capacity, resistance, and temperature from compatible Atorch USB power meters. The web interface provides data logging capabilities with the ability to reset, pause, and save measurement sessions. Using WebBluetooth API, the application eliminates the need for additional software installations, operating directly in compatible web browsers with Bluetooth support.

Mag Encode is a web-based magnetic stripe card encoder that generates audio signals for encoding data onto magnetic stripe cards. The application runs entirely in the browser, processing encoding operations client-side without transmitting data to external servers. The tool supports configurable encoding parameters including frequency settings, reverse swipe options, and various advanced configuration options for different magnetic stripe formats. It converts digital data into the appropriate audio waveforms that can be played through audio output devices to magnetically encode stripe cards.

Certgraph is a tool I’ve been developing to scan and graph the network of SSL certificate alternative names. It can be used to find other domains that belong to an organization that may be several orders removed and not always obvious. Background The idea for this project came about after examining the SSL certificate for XKCD.com. If you look closely at the screenshot below you will see that the SSL certificate used on XKCD.com is also valid for many of domains which have no relationship to XKCD or Randall Munroe. ...

Recently there has been a lot of buzz about the recent Heartbleed vulnerability found in some versions of OpenSSL. The attack works due to a mistake in the server validating part of the request made by the SSL client. The popular web comic XKCD has made a great simple comic explaining how the attack works, and there are simple tools to test for vulnerable servers. But how does this affect me, a user? ...

A while ago I decided that I needed some more JavaScript/AJAX experience, and what better way to get it than to use it to solve an existing problem. Every now and then my apartment hosts karaoke nights, we have a lot of songs, enough to fill a 4-inch binder. Searching for songs was a pain. In order to find the song’s ID code to give to the DJ you must search through pages of songs and artists that were in no particular order. I decided to fix this problem with my skill set, so I created DJQueue. DJQueue is a collection of hacked together PHP, JavaScript, and SQL magic. ...

This article is going to help you using LDAP to authenticate users rather than relying on a users table with a password column. I will be assuming you will be using cakephp 1.3 and that you have completed Auth and/or ACL setup on your application similar to the ACL tutorial on the cakephp book. Because we want to control the logging in of the user ourselves and not leave it to the cake magic we need to override the auth component. To do this copy your auth.php from your CAKE_CORE/controllers/components/ to your APP/controllers/components/ folder. Next open it up and fine the login function. It should be around like 684. Once you find it comment out everything inside the function, but leave the function intact. It should look something like this: ...

This is about a piece of software I wrote over a year ago to fit a need I had at the time. It probably will not receive any updates but I have released the source to anyone is free to do as they please with it. Background PHPRepo is a PHP CMS for managing Debian package repositories. A while ago I wanted to start my own repository for some of my own packages, so I looked for an easy way to do this. I found none. At the time the only way to run and manage a Debian package repository was through apt at the command line, and since at the time I was learning PHP I decided to write my own software to fill this void. Thus I created PHPRepo. PHPRepo has very minimal requirements and can work alongside an existing repository that is managed with apt. ...