Gain insights into effective security techniques including patching, cryptography, and phishing prevention. Explore practices to make systems resistant and vulnerabilities more detectable, enhancing defense against attacks.

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

It will be useful to be able to query DNS records to understand these defenses and configure them for your domains. If you’re running a Unix-like operating system like Mac OS or Linux, you’ll have a program called dig installed. You can run dig at the command line. You can read the man page for more details, but for our purposes, all you need to know is to run dig with two arguments—the host or domain you want to learn more about and the keyword txt. That will look like this:

In this lesson, we will explore Sender Policy Framework (SPF), a DNS-based defense against phishing.

Introduction

Patching

Vulnerabilities

Cryptography

Windows

Phishing

DNS-Based Defense SPF