Broken DNS performs lame delegation checking at scale to identify DNS nameserver configuration issues. The tool validates DNS delegation by checking if nameservers properly respond to queries for zones they are supposed to be authoritative for. The Go implementation can process large numbers of domains and nameservers to detect misconfigurations where nameservers are listed in delegation records but do not actually serve the zone data. This helps identify broken DNS setups that can cause resolution failures.

Minimalin Reborn is a minimalistic watchface for Pebble smartwatches, featuring a clean design with customizable colors and optional information displays. The watchface uses a custom font called Nupe and provides configurable elements including weather data and step tracking integration. This project is a fork and modernization of the original minimalin watchface, updated to work with current Pebble development tools and the Rebble ecosystem. The watchface supports both color and monochrome Pebble devices with adaptive styling and user-configurable display options.

Recent versions of Ubuntu are shipping with Snapcraft by default, and some of the default applications run inside a snap as well. Snaps are application containers, similar to Docker, but designed for desktop applications. Unfortunately Canonical seems to be pushing Snaps hard, and they are not always wanted. This is made worse by not providing an easy way to remove the snap functionality for Ubuntu. The commands bellow will entirely remove snap from an Ubuntu installation. ...

Homeplate is an ESP32-based e-ink dashboard that displays data from Trmnl and Home Assistant on an Inkplate 10 device. The firmware fetches and renders various dashboard widgets including sensor readings, WiFi QR codes, and system status information. The implementation uses FreeRTOS on ESP32 to manage display updates, network connectivity, and power management for the e-ink display. It supports multiple data sources and configurable display layouts for home automation monitoring.

ESPHome Components is a collection of custom components that extend ESPHome functionality for ESP8266 and ESP32 microcontrollers. The repository contains C++ implementations of additional sensors, displays, and device integrations not available in the core ESPHome distribution. The components follow ESPHome’s standard architecture and configuration patterns, allowing them to be easily integrated into existing ESPHome projects through external component references. Each component includes the necessary C++ code and Python configuration validation.

DNS2mDNS bridges traditional DNS queries with multicast DNS (mDNS) resolution for .local hostnames. The service allows devices that don’t natively support mDNS, such as many Android devices and Windows systems, to resolve local network hostnames through standard DNS queries. The Go implementation acts as a DNS server that intercepts queries for .local domains and forwards them to the mDNS system, then returns the results via standard DNS responses. This enables seamless local hostname resolution across mixed network environments with Docker deployment support.

This post outlines a security assessment of the new Sena Wifi Adapter I performed last summer for fun. With the world on lock-down due to COVID-19, I spent a lot of time last summer escaping the city going on motorcycle rides through the mountains and forests surrounding the bay area. It’s the perfect social distance activity because if you get within 6ft of someone you are likely to crash. One of my favorite motorcycle accessories is my Sena headset. It allows me to listen to navigation or music from my phone over Bluetooth while riding, and talk to other riders in my group. ...

Luxer One is a Python API client for the Luxer One Residential package management system. The library provides programmatic access to check package delivery status, retrieve pending packages, and interact with smart locker systems commonly found in apartment complexes and residential buildings. The client handles authentication with the Luxer One API and includes example code demonstrating basic operations such as logging in and querying package information. This enables automated monitoring and management of package deliveries through the Luxer One platform.

A while ago I received a bunch of bare ESP-WROOM-02 chips on tape, but I could not find enough documentation to program them (partially out of laziness). With my recent interest in ESPHome, I decided to give them another try. This blog post contains the results of my research on how to program them. ESP-WROOM-02 The ESP-WROOM-02 is just a ESP8266 underneath. If you don’t have a breakout board like me, then you will need a UART adapter and make a few minimal solder connections to set the various boot modes to allow you to program the firmware. Once programmed for the first time, you can use OTA updates to allow flashing firmware over WiFi and not need to mess with the wiring every time you want to reprogram it. ...

Extsort is a Go library that implements external sorting algorithms for datasets larger than available memory. The library manages temporary files and memory buffers to sort data that cannot fit entirely in RAM. The implementation uses merge sort with configurable buffer sizes and temporary file management. It provides a standard Go interface for sorting operations while automatically handling the complexity of disk-based intermediate storage and merging phases.

Allxfr performs DNS zone transfers (AXFR) against nameservers to retrieve complete zone files. The tool systematically attempts zone transfers against root zone servers and other configured nameservers to discover available zone data. The program supports both IPv4 and IPv6 connections and includes options for parallel transfers, dry-run operations, and zone file storage. It implements the DNS AXFR protocol to request complete zone transfers from authoritative nameservers that permit such operations.

Minimalin Watch Face is a minimalistic Wear OS watch face featuring clean typography and Material Design aesthetics. The watch face displays time with customizable complications and supports ambient mode for always-on displays with reduced power consumption. Inspired by the original Pebble Minimalin watch face, this Wear OS implementation includes configurable color themes, center complications for additional information display, and optimized rendering for various screen sizes and densities across different smartwatch models.

Sometime in the first half of 2018 there was an explosion of “Dockless e-scooters” appearing all over the Bay Area. These devices are electric scooters that anyone can rent for a one-way trip and find/leave them (at the time) anywhere you want. As one could guess this led to lots of issues but they where convenient and I wanted one of my own so I did a little research onto how to acquire one for private use. ...

M365 Toolbox demonstrates a security vulnerability in the Xiaomi M365 electric scooter’s communication protocol. The Java application exploits weaknesses in the scooter’s Bluetooth Low Energy (BLE) authentication mechanism to bypass security controls and execute unauthorized commands. The proof-of-concept tool reveals how the scooter’s authentication can be circumvented through protocol manipulation, allowing remote control access without proper authorization. This research highlighted critical security flaws in IoT device communication protocols commonly found in consumer transportation devices.

A Go library and SOCKS5 proxy server that enables egress traffic from multiple IP addresses within a subnet. Stargate randomly distributes network connections across different IP addresses to avoid rate-limiting and provide load balancing across available IP ranges. The tool works best with subnets directly routed to the host and is particularly powerful for IPv6 subnet utilization. It supports both TCP CONNECT and UDP ASSOCIATE protocols and provides both a standalone proxy tool and a Go library for programmatic random IP networking. Requires specific network routing configuration and primarily supports Linux and FreeBSD platforms due to freebind networking capabilities.