docker.tar.gz

network-commands

node

It seems like hardly a week goes by without a high-profile computer breach. Why do these happen? How can you prevent them? This course doesn’t have all the answers, but it does outline practices that make life harder for attackers and that will help tide you over until you get a full-time security team in place.

In this course, you will learn 5 simple, yet effective, techniques for preventing attackers from getting into your system. These techniques are related to: patching, software vulnerabilities, cryptography, windows security, and phishing. Within each chapter you will learn the best practices for preventing vulnerabilities and how to make them more detectable. 

This course is based on the Pragmatic Programmers’ book, Practical Security, and is aimed at developers, admins, team leads, architects, technology generalists, and all others who stand guard against the things that disrupt the network.

Practical Security: Simple Practices for Defending Your Systems

## Introduction 
We’ve seen the knock-knock joke principle applied to SQL (SQL injection). Let’s take a look at attacks using that same principle when applied to the HTML and JavaScript in a web page. We call this attack cross-site scripting (or XSS for short) if the attack injects JavaScript. We call it DOM injection if it injects regular HTML.

Let’s continue with the example from earlier in the chapter of a blogging site. One of the most basic requirements is for anyone using the site to be able to read posts written by other users. Suppose a reader writes a blog post such as this:


# Introduction 
We’ve seen the knock-knock joke principle applied to SQL (SQL injection). Let’s take a look at attacks using that same principle when applied to the HTML and JavaScript in a web page. We call this attack cross-site scripting (or XSS for short) if the attack injects JavaScript. We call it DOM injection if it injects regular HTML.

Let’s continue with the example from earlier in the chapter of a blogging site. One of the most basic requirements is for anyone using the site to be able to read posts written by other users. Suppose a reader writes a blog post such as this:


Let's get an introduction to cross-site scripting.

Introduction

Patching

Vulnerabilities

Cryptography

Windows

Phishing

Introduction to Cross-Site Scripting (XSS)

Introduction