ruslanec

System Design Cheatsheet

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

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?

Steps with explanations to set up a server using:

	#! /bin/bash
	wget https://github.com/google/protobuf/releases/download/v2.6.1/protobuf-2.6.1.tar.gz
	tar xzf protobuf-2.6.1.tar.gz
	cd protobuf-2.6.1
	sudo apt-get update
	sudo apt-get install build-essential
	sudo ./configure
	sudo make
	sudo make check
	sudo make install

	#!/bin/sh

	##
	## Usage: ./ovpn-writer.sh SERVER CA_CERT CLIENT_CERT CLIENT_KEY SHARED_SECRET > client.ovpn
	##

	server=${1?"The server address is required"}
	cacert=${2?"The path to the ca certificate file is required"}
	client_cert=${3?"The path to the client certificate file is required"}
	client_key=${4?"The path to the client private key file is required"}

	#include "stdafx.h"
	#include <wtypes.h>
	#include <comutil.h>
	#pragma comment(lib,"comsuppw.lib")
	#include <string>
	#include <string.h>
	#include <stdio.h>

	using namespace std;