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@hhromic
hhromic / tradfri.sh
Last active April 16, 2023 21:06
Show information about IKEA Tradfri devices firmware from the official IKEA servers in Linux
#!/usr/bin/env bash
# Show information about IKEA Tradfri devices firmware from the official IKEA servers
# script by github.com/hhromic
# optional filter
declare -r FILTER=$1
# URLs for firmware channels
declare -r -A CHANNEL_URLS=(
[CURRENT]=http://fw.ota.homesmart.ikea.net/feed/version_info.json
@gbaman
gbaman / HowToOTG.md
Last active November 19, 2025 15:55
Simple guide for setting up OTG modes on the Raspberry Pi Zero

Raspberry Pi Zero OTG Mode

Simple guide for setting up OTG modes on the Raspberry Pi Zero - By Andrew Mulholland (gbaman).

The Raspberry Pi Zero (and model A and A+) support USB On The Go, given the processor is connected directly to the USB port, unlike on the B, B+ or Pi 2 B, which goes via a USB hub.
Because of this, if setup to, the Pi can act as a USB slave instead, providing virtual serial (a terminal), virtual ethernet, virtual mass storage device (pendrive) or even other virtual devices like HID, MIDI, or act as a virtual webcam!
It is important to note that, although the model A and A+ can support being a USB slave, they are missing the ID pin (is tied to ground internally) so are unable to dynamically switch between USB master/slave mode. As such, they default to USB master mode. There is no easy way to change this right now.
It is also important to note, that a USB to UART serial adapter is not needed for any of these guides, as may be documented elsewhere across the int

@gubatron
gubatron / dht-walkthrough.md
Last active September 3, 2025 02:45
DHT walkthrough notes

DHT Walkthrough Notes

I've put together these notes as I read about DHT's in depth and then learned how the libtorrent implementation based on the Kademlia paper actually works.

What problem does this solve?

400,000,000,000 (400 billion stars), that's a 4 followed by 11 zeros. The number of atoms in the universe is estimated to be around 10^82. A DHT with keys of 160 bits, can have 2^160 possible numbers, which is around 10^48

@hsribei
hsribei / can-nat-traversal-be-tor-s-killer-feature.md
Last active September 24, 2024 14:43
Can NAT traversal be Tor's killer feature?

Can NAT traversal be Tor's killer feature?

tl;dr: how about a virtual global flat LAN that maps static IPs to onion addresses?

[We all know the story][1]. Random feature gets unintentionally picked up as the main reason for buying/using a certain product, despite the creator's intention being different or more general. (PC: spreadsheets; Internet: porn; smartphones: messaging.)