darron

#!/bin/bash

# You need: curl, jq, and ipcalc to run this.
# You should already have cut, sort and uniq if you're on OS X or Linux.

RANGES=$(curl -s https://ip-ranges.amazonaws.com/ip-ranges.json | jq .prefixes | jq '.[] | select(.region=="us-east-1")' | jq 'select(.service=="EC2")' | jq .ip_prefix | cut -d '"' -f 2 | sort | uniq)

for range in $RANGES
do
  MIN=$(ipcalc -bn $range | grep "HostMin" | cut -d ':' -f 2)

soarez

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

codepope

var mqtt=require('mqtt');
var mongodb=require('mongodb');
var mongodbClient=mongodb.MongoClient;
var mongodbURI='mongodb://username:password@server.mongohq.com:port/database';
var deviceRoot="demo/device/";
var collection,client;

mongodbClient.connect(mongodbURI,setupCollection);
     
function setupCollection(err,db) {