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Location: https://github.com/wsargent/docker-cheat-sheet

Hi there!

The docker cheat sheet has moved to a Github project under https://github.com/wsargent/docker-cheat-sheet.

Please click on the link above to go to the cheat sheet.

How to get a free StartSSL.com SSL certificate

I'm writing this up from memory, so errors may appear.

This has been updated to use SHA256 certificates.

Start

Go to http://www.startssl.com/
Click on 'Control Panel'

Overview

If you're able to visit a website and it successfully validates but you're not able to curl the website (i.e. you get certificate validation errors) then it is likely because your root certificate, or intermediate certificate, or both are not trusted in your system. Ubuntu provides an easy process for updating the root certificate stores using the update-ca-certificates command and the /etc/ca-certificates.conf for configuration.

Add CA and Intermediates to Ubuntu

Certificates should be installed under /usr/share/ca-certificates. You should create a directory for your org to place all certs and intermediates.

mkdir /usr/share/ca-certificates/my.org/

Difference between Debounce and Throttle

Debounce

Debounce a function when you want it to execute only once after a defined interval of time. If the event occurs multiple times within the interval, the interval is reset each time.
Example A user is typing into an input field and you want to execute a function, such as a call to the server, only when the user stops typing for a certain interval, such as 500ms.

Throttle

My OS X “VPN only” Setup For #30C3

You should never let passwords or private data be transmitted over an untrusted network (your neighbor’s, the one at Starbucks or the company) anyway, but on a hacker congress like the #30C3, this rule is almost vital.

Hackers get bored easily, and when they’re bored, they’re starting to look for things to play with. And a network with several thousand connected users is certainly an interesting thing to play with. Some of them might start intercepting the data on the network or do other nasty things with the packets that they can get.

If these packets are encrypted, messing with them is much harder (but not impossible! – see the end of this article). So you want your packets to be always encrypted. And the best way to do that is by using a VPN.

Target audience

Single WordPress on a Droplet

Initial Server Setup with Ubuntu 12.04
How To Install Linux, nginx, MySQL, PHP (LEMP) stack on Ubuntu 12.04
A Basic MySQL Tutorial
How To Install phpMyAdmin on a LEMP server
How To Install Git on Ubuntu 12.04
Generating SSH Keys and connect with DigitalOcean
Install Composer on DigitalOcean
[Install php5-cli if you get stuck with installing Compos

Introduction

The book.

The author Ari Lerner is a Founder of FullStack. He also authored/co-authored:

He co-manages:

Steps to make a Fragment or View to have a Callback to its parent Activity.

Step by step from info taken from here:

http://developer.android.com/guide/components/fragments.html#CommunicatingWithActivity

We have an Activity that hosts a Fragment or a View
We have a Fragment or View with a ListView or a Button or some element that we want the Activity to know about. i.e. we load detailed info of an element chosen on a ListView or something.

	visible_hostname localhost
	cache_mgr frank4565@gmail.com
	http_port 3128 transparent
	icp_port 0
	dns_nameservers 192.168.1.1
	cache_effective_user git
	cache_effective_group git
	pid_filename /tmp/squid.pid
	emulate_httpd_log on
	#logformat log %>a %ui %un [%tl] "%rm %ru HTTP/%rv" %Hs %<st "%{Referer}>h" "%{User-Agent}>h" %Ss:%Sh

	/**
	* Returns value of specified URL parameter.
	* @param {String} name Query parameter to return value of.
	* @return {String} String of query parameter or null / 0.
	*/
	getUrlParameter = function(name){
	var results = new RegExp('[\\?&]' + name + '=([^&#?]*)').exec(window.location.href);
	if (results==null){ return null; }
	else { return results[1] \|\| 0; }
	}