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Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

Async Proxy Server

Installation

pip install -r requirements.txt

Run

Run the backend server

File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files

JavaScript Crypto Libraries

List some crypto libraries for JavaScript out there. Might be a bit out dated. Scroll to the bottom.

WebCryptoAPI

http://www.w3.org/TR/WebCryptoAPI/

This specification describes a JavaScript API for performing basic cryptographic operations in web applications, such as hashing, signature generation and verification, and encryption and decryption. Additionally, it describes an API for applications to generate and/or manage the keying material necessary to perform these operations. Uses for this API range from user or service authentication, document or code signing, and the confidentiality and integrity of communications.

	import asyncio
	from aiohttp import web
	import subprocess


	async def uptime_handler(request):
	# http://HOST:PORT/?interval=90
	interval = int(request.GET.get('interval', 1))

	# Without the Content-Type, most (all?) browsers will not render

	<!-- MIT License -->
	<html>
	<head>
	<script>
	function generateKey(alg, scope) {
	return new Promise(function(resolve) {
	var genkey = crypto.subtle.generateKey(alg, true, scope)
	genkey.then(function (pair) {
	resolve(pair)
	})

	git config --global https.proxy http://127.0.0.1:1080

	git config --global https.proxy https://127.0.0.1:1080

	git config --global --unset http.proxy

	git config --global --unset https.proxy


	npm config delete proxy

	// sloppy traceroute clone
	// inpired by https://blogs.oracle.com/ksplice/entry/learning_by_doing_writing_your
	// and made possible by https://www.npmjs.org/package/raw-socket

	var raw = require('raw-socket');
	var dns = require('dns');

	var target = process.argv[2] \|\| '173.230.146.29';
	var MAX_HOPS = 64;
	var TIME_LIMIT = 5000;

	#!/usr/bin/env python3
	# -- coding: utf-8 --

	#First released as C++ program by Hiroyuki Tsutsumi as part of the free software suite “Beer”
	#I thought porting it to Python could be both a challenge and useful

	from sys import argv, exit, getsizeof
	from struct import pack_into, unpack_from

	def ceil4(n):

	// Add on element with overflow
	-webkit-mask-image: -webkit-radial-gradient(white, black);