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@rxaviers
rxaviers / gist:7360908
Last active May 3, 2024 14:32
Complete list of github markdown emoji markup

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@MightyPork
MightyPork / usb_hid_keys.h
Last active May 1, 2024 05:11
USB HID Keyboard scan codes
/**
* USB HID Keyboard scan codes as per USB spec 1.11
* plus some additional codes
*
* Created by MightyPork, 2016
* Public domain
*
* Adapted from:
* https://source.android.com/devices/input/keyboard-devices.html
*/
@wandernauta
wandernauta / sp
Last active April 16, 2024 15:37
sp is a command-line client for Spotify's dbus interface. Play, pause, skip and search tracks from the comfort of your command line.
#!/usr/bin/env bash
#
# This is sp, the command-line Spotify controller. It talks to a running
# instance of the Spotify Linux client over dbus, providing an interface not
# unlike mpc.
#
# Put differently, it allows you to control Spotify without leaving the comfort
# of your command line, and without a custom client or Premium subscription.
#
@kriswebdev
kriswebdev / novpn.sh
Last active April 9, 2024 06:24
novpn: Bypass VPN for specific apps [Linux / OpenVPN]
#!/bin/bash
# === INFO ===
# NoVPN
# Description: Bypass VPN tunnel for applications run through this tool.
VERSION="3.0.0"
# Author: KrisWebDev
# Requirements: Linux with kernel > 2.6.4 (released in 2008).
# This version is tested on Ubuntu 14.04 and 19.10 with bash.
# Main dependencies are automatically installed.
@Liryna
Liryna / ARMDebianUbuntu.md
Last active April 6, 2024 15:22
Emulating ARM on Debian/Ubuntu

You might want to read this to get an introduction to armel vs armhf.

If the below is too much, you can try Ubuntu-ARMv7-Qemu but note it contains non-free blobs.

Running ARM programs under linux (without starting QEMU VM!)

First, cross-compile user programs with GCC-ARM toolchain. Then install qemu-arm-static so that you can run ARM executables directly on linux

@da-n
da-n / usb-unlock-luks.md
Created August 24, 2019 13:11
Unlock LUKS full disk with USB stick

Configuration for passwordless root filesystem

Source: https://www.howtoforge.com/tutorial/passwordless-encryption-of-linux-root-partition/

The process of entering the passphrase at boot time will now be automated using an USB memory stick. Instead of using a passphrase , the secret key on the USB will decrypt the encrypted volumes. Connect an USB stick to the VM and locate it using the dmesg command. It is detected as /dev/sdb in my VM.

The secret key of 8192 random byte is extracted from the usb stick using the dd command.

dd if=/dev/sdb of=/root/secret.key bs=512 skip=4 count=16
@jeffamstutz
jeffamstutz / get_imgui.cmake
Created February 8, 2021 14:35
CMake FetchContent to get ImGui
FetchContent_Populate(imgui
URL https://github.com/ocornut/imgui/archive/docking.zip
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/imgui
)
set(OpenGL_GL_PREFERENCE "LEGACY")
find_package(OpenGL 2 REQUIRED)
find_package(glfw3 REQUIRED)
add_library(imgui_glfw STATIC
@thinkl33t
thinkl33t / gist:73e90fd5463622be1ca3f8abd6940659
Last active March 7, 2024 14:17
RGBW Bluetooth LED controller protocol

Controller for an RGBW LED strip purchased from AliExpress

It only appears to fire up the RGB strip or the white strip, never both at once.

Endpoint = 0xb = 0000ffe9-0000-1000-8000-00805f9b34fb

cc2333 - fade on, to whichever output / colour was used last.  Will re-fade if reissued.
cc2433 - fade off

56xxxxxxyyf0aa - change to RGB output - xxxxxx = colour code in hex. yy = anything hexy

@bloc97
bloc97 / TwoMethods.md
Last active February 20, 2024 12:19
Two Fast Methods of Generating True Random Numbers on the Arduino

Two Fast Methods of Generating True Random Numbers on the Arduino

Arduino true random number generator

B. Peng

December 2017

Abstract

The AVR series microcontrollers are a collection of cheap and versatile chips that are used in many applications ranging from hobbist projects to commercial infrastructure. One major problem for some hobbists is the lack of secure random number generation on the Arduino platform. The included pseudo-random number generator (PRNG) is very easy to defeat and is useless for any crypto-related uses. One recommendation from the Arduino Reference Manual is to use atmospheric noise from the chip's analog sensor pins as seed data[6].
Unfortunately this method is extremely weak and should not be used to emulate a true random number generator (TRNG). Existing methods such as using the internal timer drift or using a dedicated generator are either too slow, requires extensive external hardware or modifications to the microcontroller's internal mech

@naholyr
naholyr / _service.md
Created December 13, 2012 09:39
Sample /etc/init.d script

Sample service script for debianoids

Look at LSB init scripts for more information.

Usage

Copy to /etc/init.d:

# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)