Rajeev Sharma rajeevkannav

1. Downloading

32 bits version

$ wget https://get.popcorntime.sh/build/Popcorn-Time-0.3.10-Linux-32.tar.xz -O popcorntime.tar.xz

64 bits version

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.

Postgres 9.2 - Install, Setup and Quick Reference

Set the default template to UTF8

$ su postgres
$ psql -U postgres
psql (9.2.4)
Type "help" for help.

Commands examples

If the namespace is not used then the commands will perform on top of the default database. bundle exec rake db:create bundle exec rake db:migrate

By using the namespace we are going to use all the configuration for our alternate DB. bundle exec rake store:db:create bundle exec rake store:db:migrate

	#first generate a key for your domain
	openssl genrsa -out yourdomain.com.key 2048

	#then generate the request
	openssl req -new -key yourdomain.com.key -out yourdomain.com.csr

	FROM rails:4.2.3

	MAINTAINER Renato Filho <[email protected]>

	ENV HOME /home/app
	ENV RAILS_ENV development

	RUN useradd -m -s /bin/bash app

	RUN gem install -N bundler

	#/bin/bash

	##########################################################
	### INTRODUCTION
	##########################################################
	: '
	Install and configure R (Redis) + ELK server from scratch on CentOS 6.5.

	* Logstash version 1.4.2
	* Elasticsearch version 1.3.2

	class API::V1::BaseController < ApplicationController

	skip_before_filter :verify_authenticity_token

	before_filter :cors_preflight_check
	after_filter :cors_set_access_control_headers

	def cors_set_access_control_headers
	headers['Access-Control-Allow-Origin'] = '*'
	headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'

	#!/bin/sh

	## Description:
	## install script of s3fs
	##
	## Usage:
	## install-s3fs.sh [mountpoint] [bucketName] [accessKeyId] [secretAccessKey]

	MOUNT_POINT=$1
	BUCKET_NAME=$2