Shooter liushooter

Running redis using upstart on Ubuntu

I've been trying to understand how to setup systems from the ground up on Ubuntu. I just installed redis onto the box and here's how I did it and some things to look out for.

To install:

Why?

There is a long standing issue in Ruby where the net/http library by default does not check the validity of an SSL certificate during a TLS handshake. Rather than deal with the underlying problem (a missing certificate authority, a self-signed certificate, etc.) one tends to see bad hacks everywhere. This can lead to problems down the road.

From what I can see the OpenSSL library that Rails Installer delivers has no certificate authorities defined. So, let's go fetch some from the curl website. And since this is for ruby, why don't we download and install the file with a ruby script?

	=Navigating=
	visit('/projects')
	visit(post_comments_path(post))

	=Clicking links and buttons=
	click_link('id-of-link')
	click_link('Link Text')
	click_button('Save')
	click('Link Text') # Click either a link or a button
	click('Button Value')

	# Template: A.html
	<html>
	<head></head>
	<body>
	{% block hello %}
	HELLO
	{% endblock %}
	</body>
	</html>

	#
	# lib/mongoid/counter_cache.rb
	# ruby
	#
	# Created by Zhang Alex on 2011-06-17.
	# Copyright 2011 __ZhangHanDong__. All rights reserved.
	#
	# ===================================
	# class Forum
	# references_many :topics

	Beyond IP Transactions: towards a payment protocol
	==================================================

	IP transactions were originally introduced as a first "out-of-band" protocol
	for negotiating a transaction output's public key. Being inconvenient and
	insecure, they became obsolete, and recent versions of bitcoin don't support
	them anymore.

	The result is that static bitcoin addresses have become the most common way of
	defining requested payments. This may be fine for anonymous donations, but is not

	require 'faraday'
	require 'forwardable'

	module Soup
	class Agent
	extend Forwardable

	def initialize(domain = 'https://www.soup.io/')
	@agent \|\|= faraday(domain)
	end

Shooter liushooter

Running redis using upstart on Ubuntu

Why?

Installation

The Ruby Way! (Fun)

	module A
	def self.included(target)
	v = target.instance_methods.include?(:method_name)
	puts "in included: #{v}"
	end

	def self.append_features(target)
	v = target.instance_methods.include?(:method_name)
	puts "in append features before: #{v}"
	super

	# -- coding=utf-8 --
	import collections

	# Usage:
	# 我的做法是把WordsDetector.py里的结果输出到文件，
	# 然后把文件名放到下面的names列表中，运行本程序。

	names = ['name0',
	'name1',
	'name2',

	# Raw transaction API example work-through
	# Send coins to a 2-of-3 multisig, then spend them.
	#
	# For this example, I'm using these three keypairs (public/private)
	# 0491bba2510912a5bd37da1fb5b1673010e43d2c6d812c514e91bfa9f2eb129e1c183329db55bd868e209aac2fbc02cb33d98fe74bf23f0c235d6126b1d8334f86 / 5JaTXbAUmfPYZFRwrYaALK48fN6sFJp4rHqq2QSXs8ucfpE4yQU
	# 04865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac09ef122b1a986818a7cb624532f062c1d1f8722084861c5c3291ccffef4ec6874 / 5Jb7fCeh1Wtm4yBBg3q3XbT6B525i17kVhy3vMC9AqfR6FH2qGk
	# 048d2455d2403e08708fc1f556002f1b6cd83f992d085097f9974ab08a28838f07896fbab08f39495e15fa6fad6edbfb1e754e35fa1c7844c41f322a1863d46213 / 5JFjmGo5Fww9p8gvx48qBYDJNAzR9pmH5S389axMtDyPT8ddqmw

	# First: combine the three keys into a multisig address:
	./bitcoind createmultisig 2 '["0491bba2510912a5bd37da1fb5b1673010e43d2c6d812c514e91bfa9f2eb129e1c183329db55bd868e209aac2fbc02cb33d98fe74bf23f0c235d6126b1d8334f86","04865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac09ef122b1a9