Tags: topic: networks and protocols*

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  1. Self-hosting provides a hands-on way to learn modern infrastructure, covering essential skills such as deployment, networking, storage, monitoring, and system reliability.

    1. **Awesome Selfhosted**: A curated list of open-source applications across various service categories.
    2. **Coolify**: An open-source PaaS for deploying apps, databases, and services on your own servers.
    3. **n8n**: A visual workflow automation platform for connecting APIs and services.
    4. **Uptime Kuma**: A monitoring system for tracking service uptime, status dashboards, and alerts.
    5. **Nextcloud Server**: A private cloud platform for file synchronization, storage, and collaboration.
    6. **Immich**: A self-hosted photo and video management and backup platform.
    7. **Memos**: A lightweight Markdown note-taking tool with a timeline interface.
    8. **Proxmox VE Helper Scripts**: Community scripts for managing LXC containers and VMs on Proxmox VE.
    9. **Awesome Tunneling**: A curated list of tools for secure remote access to local services via tunneling.
    10. **Self-Hosting Guide**: A comprehensive reference guide covering hardware, software, and infrastructure concepts.
  2. Clawdmeter is a custom-built desk dashboard powered by the ESP32-S3 that provides real-time monitoring of Claude Code token usage. Utilizing a 2.16-inch AMOLED screen and Bluetooth LE connectivity, the device displays animated pixel art that reacts to usage rates and acts as a HID keyboard for quick command shortcuts via BLE.
  3. On May 5, 2026, DENIC published incorrect DNSSEC signatures for the .de TLD during a key rollover, causing validating resolvers globally to return SERVFAIL errors. This article details how Cloudflare's 1.1.1.1 resolver responded using "serve stale" mechanisms and implemented an emergency override equivalent to a Negative Trust Anchor (NTA) to restore connectivity by treating the zone as unsigned. The post also covers mitigations for origin resolution and identifies improvements needed for Extended DNS Error (EDE) reporting.

    - Impact of TLD-level DNSSEC misconfigurations on child domains
    - How RFC 8767 "serve stale" cushions the impact of upstream outages
    - Using Negative Trust Anchors to bypass broken cryptographic validation
    - Lessons learned regarding transparency in Extended DNS Error reporting
    2026-05-07 Tags: , , , , , , , by klotz
  4. >"Orange Pi is an open source single-board card computer, a new generation of arm64 development board, which can run operating systems such as Android TV 12, Ubuntu and Debian. The Orange Pi Zero 2w development board uses the Allwinner H618 system-on-chip, and can optionally have 1GB or 1.5GB or 2GB or 4GB LPDDR4 memory."
  5. WebMCP is an open source JavaScript library that allows any website to integrate with the Model Context Protocol. It provides a small widget for users to connect to and interact with webpages via LLMs or agents.
    Key features include:
    - Tools that allow LLMs to perform specific actions on your website
    - Prompts that serve as predefined templates for standardized interactions
    - Resources that expose page data and content to be used as context for LLM interactions
  6. This guide provides instructions and scripts for the automatic installation of wiedehopf's readsb decoder on ADS-B receiving systems. It covers features such as easy gain and location adjustments, automatic reconfiguration of fr24feed or rbfeeder to work with the standalone decoder, and the removal of conflicting decoders.
  7. An ADS-B decoder described as a swiss knife for decoding aircraft data. This project is a fork of Mictronics' readsb and supports various Software Defined Radio devices such as RTL-SDR, HackRF, Bladerf, and PlutoSDR. It offers robust networking options including Beast/SBS protocols and JSON output, making it an ideal backend for global flight tracking systems like tar1090.
    Main topics:
    ADS-B decoding via SDR hardware
    Extensive network connectivity support (Beast, SBS, JSON)
    Integration with mapping tools like tar1090
    Support for multiple SDR device types
  8. This advisory details a significant tactical shift by China-nexus cyber actors toward using large-scale networks of compromised devices, known as covert networks or botnets, to route malicious activity. These networks primarily consist of vulnerable Small Office Home Office (SOHO) routers and Internet of Things (IoT) devices, allowing threat actors to disguise their origins and conduct reconnaissance, malware delivery, and data exfiltration with high deniability.
    Key points include:
    - The transition from individually procured infrastructure to externally provisioned botnets managed by Chinese information security companies.
    - Use of compromised edge devices like Cisco and NetGear routers that are often end-of-life or unpatched.
    - Challenges for defenders due to indicator of compromise (IOC) extinction, making static IP block lists less effective.
    - Recommended defensive strategies ranging from basic asset mapping and multi-factor authentication to advanced zero trust policies and active threat hunting.
  9. The Orange Pi Zero 3W is a new compact single-board computer measuring 65 x 32 mm. It features the Allwinner A733 octa-core processor, combining Cortex-A76 and Cortex-A55 cores with an integrated NPU for AI workloads and a RISC-V coprocessor for real-time tasks. The board supports up to 16GB of LPDDR5 memory and offers versatile display options including Mini HDMI, MIPI-DSI, and DisplayPort via USB-C.

    * Allwinner A733 SoC with octa-core CPU and 3 TOPS NPU
    * Up to 16GB LPDDR5 RAM support
    * Connectivity includes Wi-Fi 6, Bluetooth 5.4, and PCIe 3.0
    * Multiple display outputs supporting up to 4K resolution
    * Support for Android, Debian, Ubuntu, and OpenHarmony
  10. This project transforms the LILYGO T-Display-P4 development board into a multifunctional portable device capable of acting as a 1090 MHz ADS-B receiver and a Meshtastic-compatible mesh radio. By using an RTL-SDR USB dongle for RF reception and an onboard SX1262 LoRa radio, the system provides real-time aircraft tracking via a touchscreen interface and off-grid messaging capabilities. The device also features integrated MP3 playback, GPS time synchronization, and a companion web application called ADS-B Scope for live map viewing through WebSerial.
    Main features include:
    * Real-time ADS-B decoding and radar scope visualization with aircraft database enrichment.
    * Meshtastic-compatible LoRa mesh networking with encrypted messaging and node discovery.
    * Integrated MP3 music player with ID3 tag parsing and cover art display.
    * Adaptive RTL-SDR gain control and USB hot-plug support.
    * Comprehensive SD card logging for both ADS-B flight data and mesh messages.
    * Dual-core ESP32-P4 architecture optimized via a 6-tier FreeRTOS priority scheme.
    * WebSerial-based companion app for live mapping, firmware flashing, and file management.

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