Daniel Cloud dcloud

How to use Wireshark with Node.js (especially with HTTPS / TLS / SSL)

It can be difficult to trace network traffic from a Node.js application. Typically, folks will just instrument some logging to check that everything is working as it is supposed to. Unfortunately, sometimes there are too many abstractions or possible race conditions to accurately get a good trace. To get the most objective possible trace of network traffic Wireshark can be used.

Wireshark is a network protocol analyzer that makes it extremely simple to capture and trace network activity from any source on your computer. It also has

Pi Hints

Can't connect to archive.raspberrypi.org or similar?

Are you using ipv6? If so, you might need to force apt to use ipv4, e.g. sudo apt-get -o Acquire::ForceIPv4=true update. The -o Acquire::ForceIPv4=true config will force ipv4.

You can configure apt to do this without the need to add the option each time. Simply place that option in a config file: echo 'Acquire::ForceIPv4 "true";' | sudo tee /etc/apt/apt.conf.d/99force-ipv4. That will create a conf file to change Apt settings.

I think I used https://www.ostechnix.com/how-to-force-apt-package-manager-to-use-ipv4-in-ubuntu-16-04/ as inspiration.

Keybase proof

I hereby claim:

I am dcloud on github.
I am danielcloud (https://keybase.io/danielcloud) on keybase.
I have a public key ASC9bcnHkszqGuxzDy5VZUhwe8Bu8eTzAGAvVyeAOvrqJAo

To claim this, I am signing this object:

I'm compiling a list of interactives, those features on news websites that present data and news stories in interesting ways. Also, news organizations known for web interactives that may have browsable lists.

Interactives indices

Projects

LA Times' The Hollywood heavyweights funding the 2016 presidential fight

Chapter 1 Parts List

Tools

###Small pliers

RadioShack 4.5-inch mini long-nose pliers, part number 64-0062, or Xcelite 4-inch mini long-nose pliers, model L4G. Or similar. The brand is unimportant. After you use them for a while, you'll develop your own preferences. In particular, you have to decide whether you like spring-loaded handles. If you decide you don't, you'll need a second pair of pliers to pull the springs out of the first.

I have small pliers, probably okay.

	#!/usr/bin/env python3

	from datetime import datetime
	import time

	import unicornhathd as uhd

	# https://xantorohara.github.io/led-matrix-editor/#
	NUMBERS = (
	(

	import os
	import ogr
	import osr
	import argparse

	fileEndsWith = '.shp'
	driverName = 'ESRI Shapefile'


	def main():

	# Curly/Educated marks are \u2018-\u201F in Unicode

	# python
	re.findall(u'[\u2018-\u201F]', apage)

	# bash
	for i in $(seq 0x2018 0x201F); do
	echo "char: \u$(( [##16]i ))"
	done

	import numpy as np

	def segment2segment_distance(a, b):
	"""
	Adapted from http://geomalgorithms.com/a07-_distance.html
	"""
	SMALL_NUM = 0.00000001
	S1P0 = np.array(a[:2])
	S1P1 = np.array(a[2:])
	S2P0 = np.array(b[:2])

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
	<head>
	<title></title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name='ocr-system' content='tesseract 3.02.02' />
	<meta name='ocr-capabilities' content='ocr_page ocr_carea ocr_par ocr_line ocrx_word'/>
	</head>