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Shadowsocks Proxy

Server-side setup

apt-get install python-pip
pip install shadowsocks

sudo ssserver -p 443 -k password -m aes-256-cfb --user nobody -d start

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Using Dnsmasq with Ubuntu for VM web application testing

When running virtual machines under a Linux host system for testing web apps in various browsers (e.g. Internet Explorer), I found it rather tedious having to continually tweak the hosts file within each VM for the purpose of adding entries pointing back to the host machine's development web server address.

Instead the steps below will setup Dnsmasq on a Ubuntu 16.04LTS, 14.04LTS or 12.04LTS host machine for the purpose of serving both it's own DNS queries and that of virtual machine guests. Dnsmasq will parse the /etc/hosts file on your host machine where we will keep a single set of DNS entires to our test web application(s).

• Method 1
  • Ubuntu 16.04LTS / 14.04LTS
  • Ubuntu 12.04LTS
• Method 2
  • Stop NetworkManager running it's own Dnsmasq

snowyu

docker network create etcd --subnet 172.19.0.0/16

docker run -d --name etcd0 --network etcd --ip 172.19.1.10 quay.io/coreos/etcd etcd \
-name etcd0 \
-advertise-client-urls http://172.19.1.10:2379,http://172.19.1.10:4001 \
-listen-client-urls http://0.0.0.0:2379,http://0.0.0.0:4001 \
-initial-advertise-peer-urls http://172.19.1.10:2380 \
-listen-peer-urls http://0.0.0.0:2380 \
-initial-cluster-token etcd-cluster-1 \
-initial-cluster etcd0=http://172.19.1.10:2380,etcd1=http://172.19.1.11:2380,etcd2=http://172.19.1.12:2380 \

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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.

---

snowyu

fs  = require 'fs'
path= require 'path'
tmp = require 'tmp'
tmp.setGracefulCleanup()

folderIsInsensitive = (aFolder)->
  aFolder ?= '.'
  t = tmp.fileSync template:path.join aFolder, '_tmp-XXXXXXXXX'
  result = fs.existsSync t.name.toUpperCase()
  t.removeCallback()

snowyu

curl https://raw.github.com/gist/3342482/57d1f618104185aa89044f934c4f86cb74e11553/rbenv-openshift.sh | bash

snowyu

 -- PostgreSQL 9.2 beta (for the new JSON datatype)
 --   You can actually use an earlier version and a TEXT type too
 -- PL/V8 http://code.google.com/p/plv8js/wiki/PLV8


  -- JSON Types need to be mapped into corresponding PG types 
  -- 
  -- Number     => INT or DOUBLE PRECISION
  -- String     => TEXT

snowyu

# ...

gem 'padrino-warden', :git => "git://github.com/zmack/padrino-warden.git"
gem 'authtools'

snowyu

Warden::Strategies.add(:bcrypt) do
  def valid?
    params[:username] || params[:password]
  end
  
  def authenticate!
    return fail! unless user = User.first(:username => params[:username])
    
    if user.encrypted_password == params[:password]
      success!(user)

snowyu

# Validates whether the value of the specified attribute matches the format of an URL,
# as defined by RFC 2396. See URI#parse for more information on URI decompositon and parsing.
#
# This method doesn't validate the existence of the domain, nor it validates the domain itself.
#
# Allowed values include http://foo.bar, http://www.foo.bar and even http://foo.
# Please note that http://foo is a valid URL, as well http://localhost.
# It's up to you to extend the validation with additional constraints.
#
#   class Site < ActiveRecord::Base