Book Image

CCNA Security 210-260 Certification Guide

By : Glen D. Singh, Michael Vinod, Vijay Anandh
Book Image

CCNA Security 210-260 Certification Guide

By: Glen D. Singh, Michael Vinod, Vijay Anandh

Overview of this book

With CCNA Security certification, a network professional can demonstrate the skills required to develop security infrastructure, recognize threats and vulnerabilities to networks, and mitigate security threats. The CCNA Security 210-260 Certification Guide will help you grasp the fundamentals of network security and prepare you for the Cisco CCNA Security Certification exam. You’ll begin by getting a grip on the fundamentals of network security and exploring the different tools available. Then, you’ll see how to securely manage your network devices by implementing the AAA framework and configuring different management plane protocols. Next, you’ll learn about security on the data link layer by implementing various security toolkits. You’ll be introduced to various firewall technologies and will understand how to configure a zone-based firewall on a Cisco IOS device. You’ll configure a site-to-site VPN on a Cisco device and get familiar with different types of VPNs and configurations. Finally, you’ll delve into the concepts of IPS and endpoint security to secure your organization’s network infrastructure. By the end of this book, you’ll be ready to take the CCNA Security Exam (210-260).
Table of Contents (19 chapters)

Cryptographic systems

In this section, we'll discuss the overview of the digital signature and its functionality with the Secure Sockets Layer (SSL) and the Transport Layer Security (TLS).

Digital signature

You may be asking yourself, what is a digital signature and why do I need one? To get started, let's imagine you are writing a letter to someone, and at the end of the letter, you close it off with your regards and apply your signature. The purpose of your signature is to validate the authenticity of the document and to ensure it's written by you. The concept of a signature is the idea that it's unique to you as a person. We can use another analogy. Let's assume you want to open a new bank account...