Vinay Sajip vsajip

Raspberry Pi on Internet via reverse SSH tunnel

HackerNews discussed this with many alternative solutions: https://news.ycombinator.com/item?id=24893615

I already have my own domain name: mydomain.com. I wanted to be able to run some webapps on my Raspberry Pi 4B running perpetually at home in headless mode (just needs 5W power and wireless internet). I wanted to be able to access these apps from public Internet. Dynamic DNS wasn't an option because my ISP blocks all incoming traffic. ngrok would work but the free plan is too restrictive.

I bought a cheap 2GB RAM, 20GB disk VM + a 25GB volume on Hetzner for about 4 EUR/month. Hetzner gave me a static IP for it. I haven't purchased a floating IP yet.

Keybase proof

I hereby claim:

I am vsajip on github.
I am vsajip (https://keybase.io/vsajip) on keybase.
I have a public key ASBsA1X70Mmfu4TObh0UTxcGZhq_ITQjgw2j8m0A6-f1Ewo

To claim this, I am signing this object:

Getting Started

Install Dependencies

npm init
npm install --save-dev ts-node typescript tslib express @types/express

Create your web server

Create server.ts in root folder of your app.

	# From https://stackoverflow.com/questions/29547218/
	# remove-silence-at-the-beginning-and-at-the-end-of-wave-files-with-pydub
	from pydub import AudioSegment


	def detect_leading_silence(sound, silence_threshold=-50.0, chunk_size=10):
	'''
	sound is a pydub.AudioSegment
	silence_threshold in dB
	chunk_size in ms

	#!/usr/local/bin/python
	"""Replacement for htpasswd"""
	# Original author: Eli Carter

	import os
	import sys
	import random
	from optparse import OptionParser

	# We need a crypt module, but Windows doesn't have one by default. Try to find

	#
	# Copyright (C) 2020 Red Dove Consultants Limited
	#
	# License: GPL v2
	#
	#
	# This script uses imapsync to synchronize IMAP mailboxes. It uses as input a CSV file
	# with columns oldhost,olduser,oldpwd,newhost,newuser,newpwd,migrate. The first line
	# is expected to be those column names. oldXXX columns refer to the source mailbox
	# information and newXXX columns refer to the target mailbox information. The migrate

	import React from 'react';
	import { storiesOf } from '@storybook/react';
	import { action } from '@storybook/addon-actions';

	import InlineMonacoEditor from './InlineMonacoEditor';

	export const LINES = [
	'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
	'Aenean aliquet, nulla eget auctor porttitor, lacus urna',
	'posuere purus, at suscipit orci sapien quis est. Curabitur',

	import fpdf
	from PyPDF2 import PdfFileWriter, PdfFileReader


	overlay_pdf_file_name = 'overlay_PDF.pdf'
	pdf_template_file_name = 'base_PDF_template.pdf'
	result_pdf_file_name = 'final_PDF.pdf'

	# This section creates a PDF containing the information you want to enter in the fields
	# on your base PDF.

	from ctypes import *
	from ctypes.wintypes import (HANDLE, ULONG, DWORD, BOOL, LPCSTR, LPCWSTR, WORD,
	USHORT)
	import msvcrt
	import platform
	import sys

	#------------------------------------------------------------------------------
	# WinSock2 definitions
	#------------------------------------------------------------------------------

	import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

	plugins {
	java
	kotlin("jvm") version "1.3.61"
	kotlin("kapt") version "1.3.61"
	}

	version = "0.1-SNAPSHOT"