xlab

function createWebSocket () {
  var connection = new WebSocket();
  var attempts = 1;
  
  connection.onopen = function () {
    // reset the tries back to 1 since we have a new connection opened.
    attempts = 1; 

    // ...Your app's logic...
  }

xlab

1.  Open a command prompt and navigate to /etc/nginx/ssl
2.  issue "openssl req -new -newkey rsa:2048 -nodes -keyout server.key -out server.csr"
  

3. Get your certificate - Go to your certificate authority and give them the CSR

4. copy your new crt to the /etc/nginx/ssl and give it read priveledges

5. reconfigure your nginx.conf, here is mine.  The first part redirects 80 to 443, the second part listens to 443 and is optimized to return Ruby on Rails application requests using gzip and unicorn.  

xlab

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert $1 -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 $2

Results

xlab

<?php

$link = mysql_connect('localhost','root','');
mysql_select_db('bd_rbt');
mysql_set_charset('utf8'); 

class Uploader
{
  public $upload_dir = "Z:\\home\\myrbt.ru\\www\\files\\";
	private $allow_exp = Array("image/jpeg", "image/png");

xlab

// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,
// @KarlHillesland, @rexguo, @tom_forsyth, @bkaradzic, @MikeNicolella
// and myself.

xlab

John Carmack on shadow volumes...

I recieved this in email from John on May 23rd, 2000.

- Mark Kilgard


I solved this in a way that is so elegant you just won't believe it.  Here
is a description that I posted to a private mailing list: