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CCNA Security 210-260 Certification Guide
CCNA Security 210-260 Certification Guide

CCNA Security 210-260 Certification Guide: Build your knowledge of network security and pass your CCNA Security exam (210-260)

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Profile Icon Glen D. Singh Profile Icon Vinod Profile Icon Anandh
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€18.99 per month
Full star icon Full star icon Full star icon Full star icon Half star icon 4.1 (22 Ratings)
Paperback Jun 2018 518 pages 1st Edition
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Arrow left icon
Profile Icon Glen D. Singh Profile Icon Vinod Profile Icon Anandh
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Full star icon Full star icon Full star icon Full star icon Half star icon 4.1 (22 Ratings)
Paperback Jun 2018 518 pages 1st Edition
eBook
€8.99 €26.99
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CCNA Security 210-260 Certification Guide

Delving into Security Toolkits

The term firewall was derived from an automobile division. It actually means a segment that is extricated to release the engine screened-off area from the core of the automobile. But in the network world, it is used as a general term for how we isolate our internal network from outside attacks and threats. A firewall can be defined as any hardware or software that enables the filtering of packets or controls the flow of traffic. They are generally implemented at the perimeter of the network. They act as a border for trusted and untrusted zones.

For a company that secures the network and data, it will add complexity to the network administrator. The costs of maintaining and implementing such a high level of security, such as e-commerce, intranet, extranet, and email services, are always high, but when compared to the loss that is incurred due to the...

Firewall functions

Firewalls primarily have two functions:

  • Packet filtering
  • Network Address Translation

Most firewalls also perform two other important security services:

  • Encrypted authentication
  • Encrypted tunnels

Rules of a firewall

The rules of a firewall can be customized depending on our needs, requirements, and threat levels. There are different conditions on which firewall filters work. These are as follows:

  • IP address: The first condition on which a firewall rule works is on IP address. The decision is based on the range of IP addresses and subnet masks.
  • Domain name: The second condition on which a firewall works is on domain name. A firewall can be configured to permit or deny access to specified domain names...

Intrusion prevention system

An intrusion prevention system (IPS) is a proactive methodology to understand potential threats, stop attacks inline, and report them immediately. An IPS is a module or an individual device that can look into the payload of the traffic coming from the outside zone, thereby ensuring that any malicious traffic would be blocked inline:

Intrusion detection system

An intrusion detection system (IDS) is a monitoring system that passively monitors incoming and outgoing network traffic for suspicious attacker activity. An IDS is a module that can alert network devices, but it cannot stop attacks from happening. Generally, an IDS is configured in promiscuous mode because it cannot block the attacks, but only send alerts:

One major question you may have is how different is an IPS from a firewall that can also do deep-packet inspection? Well, the answer is that an IPS can identify traffic patterns that might match an attack, while a firewall can do an inspection on a per-packet basis, thereby they would not be intelligent enough to detect an attack. So, in any secure network, an IPS complements a firewall.

The different IPS and IDS identification methods are discussed here:

  • Signature-based: The IPS verifies the...

Virtual Private Network

A Virtual Private Network (VPN) is an extension of a private network into the public network domain. The public network would act as a private network and the user would be able to perform every function as if logged in to the private network. It also helps to allow a remote user to work with the same security and management policies defined by the administrator of the private network. This connection is established by a virtual point-to-point connection through a set of assigned connections and encryption, or a combination of both, depending on the business requirements.

VPNs allow employees to securely log in to their private network, even if they are not in their office premises. It is secure and cost-effective.

Any kind of network connection over an untrusted network, such as the internet, would benefit from implementing a VPN. Even inside an organization...

Content security

Content security is a general term that talks about the confidentiality, legal concerns, and security of a company's intellectual property.

Attacks are not only launched by individuals outside of the company. Sometimes attacks are initiated by an individual inside your organization, who has legitimate access to the resources. These concerns increase daily, because organizations allow their employees to bring your own devices (BYODs) and allow employees to access their applications, data, and devices. There are vulnerabilities in the network/system, and there are chances of losing content, such as important data/files, while sending them via file sharing or emails. Companies should take the necessary steps to protect their content by defining some in-depth defensive policies. Content security cannot be achieved by implementing normal security policies, instead...

Summary

In this chapter, we learned about firewall functions, their rules, and the types of firewalls, such as packet-filtering firewalls, stateful firewalls, application firewalls, and zone-based firewalls. We also looked at IPS, IDS, VPN, and content security in detail.

In the next chapter, we will discuss the concepts of security policies, assets, and other security design considerations.

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Key benefits

  • •Enhance your skills in network security by learning about Cisco’s device configuration and installation
  • •Unlock the practical aspects of CCNA security to secure your devices
  • •Explore tips and tricks to help you achieve the CCNA Security 210-260 Certification

Description

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).

Who is this book for?

CCNA Security 210-260 Certification Guide can help you become a network security engineer, a cyber security professional, or a security administrator. You should have valid CCENT or CCNA Routing and Switching certification before taking your CCNA Security exam.

What you will learn

  • •Grasp the fundamentals of network security
  • •Configure routing protocols to secure network devices
  • •Mitigate different styles of security attacks using Cisco devices
  • •Explore the different types of firewall technologies
  • •Discover the Cisco ASA functionality and gain insights into some advanced ASA configurations
  • •Implement IPS on a Cisco device and understand the concept of endpoint security

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Jun 15, 2018
Length: 518 pages
Edition : 1st
Language : English
ISBN-13 : 9781787128873
Vendor :
Cisco
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Product Details

Publication date : Jun 15, 2018
Length: 518 pages
Edition : 1st
Language : English
ISBN-13 : 9781787128873
Vendor :
Cisco
Tools :

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Table of Contents

18 Chapters
Exploring Security Threats Chevron down icon Chevron up icon
Delving into Security Toolkits Chevron down icon Chevron up icon
Understanding Security Policies Chevron down icon Chevron up icon
Deep Diving into Cryptography Chevron down icon Chevron up icon
Implementing the AAA Framework Chevron down icon Chevron up icon
Securing the Control and Management Planes Chevron down icon Chevron up icon
Protecting Layer 2 Protocols Chevron down icon Chevron up icon
Protecting the Switch Infrastructure Chevron down icon Chevron up icon
Exploring Firewall Technologies Chevron down icon Chevron up icon
Cisco ASA Chevron down icon Chevron up icon
Advanced ASA Configuration Chevron down icon Chevron up icon
Configuring Zone-Based Firewalls Chevron down icon Chevron up icon
IPSec – The Protocol that Drives VPN Chevron down icon Chevron up icon
Configuring a Site-to-Site VPN Chevron down icon Chevron up icon
Configuring a Remote-Access VPN Chevron down icon Chevron up icon
Working with IPS Chevron down icon Chevron up icon
Application and Endpoint Security Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

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Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.1
(22 Ratings)
5 star 54.5%
4 star 18.2%
3 star 18.2%
2 star 0%
1 star 9.1%
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rasheed mohammed Jan 14, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
This book is well written. it is clear, concise and provides a step-by-step approach administering Cisco security features on their devices. It is clear that the authors were pragmatic in their approach. From beginners to advanced users, i think every user can appreciate such a thoughtful and thorough approach to helping you better understand CCNA Security principles.
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vik Jul 18, 2018
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great guide on network security in's and out's
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Eric DJ Oct 24, 2018
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Love it
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ravi seetaram Jul 21, 2018
Full star icon Full star icon Full star icon Full star icon Full star icon 5
very good book. Topics are very easy to understand with this book
Amazon Verified review Amazon
Chris Oct 25, 2020
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Keep up the good work!!!
Amazon Verified review Amazon
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