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//how to execute: node sign.js <path file> <path private key>
//output: signature of file
var crypto = require('crypto');
var fs = require('fs');

var args = process.argv.slice(2);
var fileName = args[0];
var keyPath = args[1];

//openssl genrsa -out key.pem 1024

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//how to execute: node verify.js <path file that you want to verify> <certificate path> <hash generate by sign.js>
//output: true if files are equal, false otherwise.
var crypto = require('crypto');
var fs = require('fs');

var args = process.argv.slice(2);
var fileName = args[0];
var certPath = args[1];
var sig = args[2];

romuloctba

Increasing the amount of inotify watchers in Arch Linux

If you are running ArchLinux, run the following command instead (see here for why):

echo fs.inotify.max_user_watches=524288 | sudo tee /etc/sysctl.d/40-max-user-watches.conf && sudo sysctl --system

Then paste it in your terminal and press on enter to run it.

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Setup private Ethereum network with Docker

Ethereum is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference.

This is a step-by-step guide, how to setup private Ethereum network. 

We’ll set up a network and create two simple JSON-RPC clients in order to communicate with our Ethereum nodes.

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The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

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<?php
/*
Plugin Name: Import demo
Plugin URI: http://royduineveld.nl
Description: A demo import for my blog
Version: 1.0
Author: Roy Duineveld
Author URI: http://royduineveld.nl
*/

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<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" type="text/javascript"></script>
<script src="http://connect.facebook.net/fr_FR/all.js"></script>
<script>
  // Replace the id by any other public page id
  FB.api('170913076256527/feed', { limit: 3 }, function(result) {
    $('#fb-feed').empty();
    $(result.data).each(function(i, post) {
        entry = $('<div class="fb-item"></div>');
        if (post.icon) {
          entry.append('<img class="icon" src="' + post.icon + '" />');

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<?php
// É aconselhável criar um backup do banco antes

// crie a taxonomia cidade na functions do tema
add_action('init', 'register_locations');
function register_locations() {
	register_taxonomy( 'cidade',array (
	  0 => 'locais',
	),
	array( 'hierarchical' => true,

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db.collection.find().limit(1).skip(_rand()*db.collection.count());

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[Unit]
Description=High-performance, schema-free document-oriented database
Documentation=man:mongod(1)
After=network.target

[Service]
Type=forking
User=mongodb
Group=mongodb