Packt+ | Advance your knowledge in tech

0

Explore Products

Best Sellers

New Releases

Books

Videos

Audiobooks

Free Learning

Practical Linux Security Cookbook

You're reading from Practical Linux Security Cookbook Secure your Linux environment from modern-day attacks with practical recipes

Product type Paperback

Published in Aug 2018

Publisher Packt

ISBN-13 9781789138399

Length 482 pages

Edition 2nd Edition

Tools

Linux

Concepts

Information Security

Author (1):

Tajinder Kalsi

View More author details

Table of Contents (15) Chapters

Preface

1. Linux Security Problem FREE CHAPTER

2. Configuring a Secure and Optimized Kernel

3. Local Filesystem Security

4. Local Authentication in Linux

5. Remote Authentication

6. Network Security

7. Security Tools

8. Linux Security Distros

9. Bash Vulnerability Patching

10. Security Monitoring and Logging

11. Understanding Linux Service Security

12. Scanning and Auditing Linux

13. Vulnerability Scanning and Intrusion Detection

14. Other Books You May Enjoy

Leave a review - let other readers know what you think

Managing TCP/IP networks

As the size of a computer network grows, managing the network's information becomes an important task for the system administrator.

Getting ready

Before we start with making any changes in the TCP/IP configuration, make sure to create a backup of the Network Manager configuration file by using the following command:

Also make a backup of the /etc/network/interfaces file in the same way.

How to do it...

In this section, we will see how we can manually configure the network settings using the command line:

Before starting with the manual configuration, first, let's check our current IP address, which has been assigned to the system automatically by DHCP. We can check the details graphically by right-clicking on the networking icon on the top-right panel and then selecting Connection Information, as shown in the following screenshot:

We can see that the current IP address of our system is 192.168.1.101.

Next, we check the same information using the command line by typing in...

The rest of the chapter is locked

Register for a free Packt account to unlock a world of extra content!

A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.

Unlock this book and the full library FREE for 7 days

Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of

Start free trial

Renews at $19.99/month. Cancel anytime

Authors (1)

Kalsi

Kalsi

Tajinder Kalsi is an innovative professional with more than 9 years' progressive experience within the information security industry. He has a good amount of knowledge and experience in web application testing, vulnerability assessment, network penetration testing, and risk assessment. At present, he is working as an information security consultant. He started his career with Wipro as a technical associate, and later on he became an ISMS consultant-cum-technical evangelist. In his free time, he conducts seminars in colleges all across India on various topics, in more than 125 colleges; he has spoken to 10,000+ students. Tajinder is a certified ISO 27001:2013 Auditor. Tajinder authored Practical Linux Security Cookbook published by Packt Publishing. He has also reviewed the following books: Web Application Penetration Testing with Kali Linux and Mastering Kali Linux for Advanced Penetration Testing. He has also authored three video courses with Packt: Getting Started with Pentensing, Finding and Exploiting Hidden Vulnerabilities, and Pentesting Web Applications. He is best described as dedicated, devoted, and determined and a person who strongly believes in making his dreams come true. He defines himself as a tireless worker, who loves to laugh and make others laugh. He is also very friendly and level-headed. https://www.linkedin.com/in/tajinderkalsi/.

See other products by Kalsi

Other recommended products

Related to this chapter

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

For the past couple of decades, Linux has been extremely popular with systems administrators, for everything from creating networks and servers to automating their entire working environment. However, security has always been the major concern. With not many resources available in the Linux security domain, this book will be an invaluable resource to help you get your Linux systems properly secured.

Jan 2018 12h 32m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

For the past couple of decades, Linux has been extremely popular with systems administrators, for everything from creating networks and servers to automating their entire working environment. However, security has always been the major concern. With not many resources available in the Linux security domain, this book will be an invaluable resource to help you get your Linux systems properly secured.

Jan 2018 12h 32m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

For the past couple of decades, Linux has been extremely popular with systems administrators, for everything from creating networks and servers to automating their entire working environment. However, security has always been the major concern. With not many resources available in the Linux security domain, this book will be an invaluable resource to help you get your Linux systems properly secured.

Jan 2018 12h 32m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

For the past couple of decades, Linux has been extremely popular with systems administrators, for everything from creating networks and servers to automating their entire working environment. However, security has always been the major concern. With not many resources available in the Linux security domain, this book will be an invaluable resource to help you get your Linux systems properly secured.

Jan 2018 12h 32m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

For the past couple of decades, Linux has been extremely popular with systems administrators, for everything from creating networks and servers to automating their entire working environment. However, security has always been the major concern. With not many resources available in the Linux security domain, this book will be an invaluable resource to help you get your Linux systems properly secured.

Jan 2018 12h 32m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

For the past couple of decades, Linux has been extremely popular with systems administrators, for everything from creating networks and servers to automating their entire working environment. However, security has always been the major concern. With not many resources available in the Linux security domain, this book will be an invaluable resource to help you get your Linux systems properly secured.

Jan 2018 12h 32m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

For the past couple of decades, Linux has been extremely popular with systems administrators, for everything from creating networks and servers to automating their entire working environment. However, security has always been the major concern. With not many resources available in the Linux security domain, this book will be an invaluable resource to help you get your Linux systems properly secured.

Jan 2018 12h 32m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

Hardening a Linux system can make it much more difficult for an attacker to exploit it. This book will enable system administrators and network engineers to protect their Linux systems, and the sensitive data on those systems.

Feb 2020 22h 12m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

Hardening a Linux system can make it much more difficult for an attacker to exploit it. This book will enable system administrators and network engineers to protect their Linux systems, and the sensitive data on those systems.

Feb 2020 22h 12m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

Hardening a Linux system can make it much more difficult for an attacker to exploit it. This book will enable system administrators and network engineers to protect their Linux systems, and the sensitive data on those systems.

Feb 2020 22h 12m

Mastering Linux Security and Hardening

Mastering Linux Security and Hardening

Hardening a Linux system can make it much more difficult for an attacker to exploit it. This book will enable system administrators and network engineers to protect their Linux systems, and the sensitive data on those systems.

Feb 2020 22h 12m

Hands-On Dark Web Analysis

Hands-On Dark Web Analysis

Understanding the history of the Deep Web, its current state, and its possible evolution, can help you, the reader; better understand the dangers and risks that exist out there. This book helps you access the Deep Web and the Dark Net and also protect yourself while browsing the Deep Web.

Personalised recommendations for you

Based on your interests and search pattern

The Aspiring CIO and CISO

The Aspiring CIO and CISO

This book helps entry, mid-level, and senior managers master soft skills, craft a compelling brand, and strategically plan their career in C-suite roles with the help of expert insights needed for success in digital leadership and executive roles.

Jun 2024 8h 32m

Malware Development for Ethical Hackers

Malware Development for Ethical Hackers

This book will help you understand malware development by delving into the intricate mechanisms of malware development, injection attacks, and advanced evasion strategies with over 80 real-life examples.

Jun 2024 13h 0m

API Security for White Hat Hackers

API Security for White Hat Hackers

API Security for White Hat Hackers is a comprehensive guide that simplifies API security by showing you how to identify and fix vulnerabilities. From emerging threats to best practices, this book helps you defend and safeguard your APIs.

Jun 2024 13h 56m

Securing Cloud PCs and Azure Virtual Desktop

Securing Cloud PCs and Azure Virtual Desktop

This book covers the fundamentals of Windows 365 and Azure Virtual Desktop, addressing endpoint security challenges. You'll also explore advanced security measures for virtual environments.

Jun 2024 13h 12m

Cybersecurity Strategies and Best Practices

Cybersecurity Strategies and Best Practices

This book offers real-world case studies, holistic approaches, and practical guidance to boost your cybersecurity expertise. You'll learn how to align security strategies with business objectives and stay ahead of the evolving threat landscape.

May 2024 8h 24m

PowerShell for Penetration Testing

PowerShell for Penetration Testing

Designed for security professionals and aspiring pentesters, this book equips you with the skills and knowledge to exploit vulnerabilities, gain access, and navigate post-exploitation scenarios across diverse platforms.

May 2024 9h 56m

Securing Industrial Control Systems and Safety Instrumented Systems

Securing Industrial Control Systems and Safety Instrumented Systems

The book provides a solid understanding of SIS cybersecurity challenges and artifacts required to ensure the safety of mission-critical systems. It also serves as a strong foundation for anyone looking to boost their industrial security skill set.

Aug 2024 8h 32m

Incident Response for Windows

Incident Response for Windows

This exhaustive book helps you detect, respond to, and prevent cyberattacks on Windows-based systems by equipping you with the knowledge and tools needed to safeguard your organization's critical assets based on the actual threat landscape.

CCSP (ISC)2 Certified Cloud Security Professional Exam Guide

CCSP (ISC)2 Certified Cloud Security Professional Exam Guide

Explore all aspects of cloud security to pass the CCSP exam and boost your career with this guide packed with use cases, mock exam questions, and tips. You'll be able to apply your new-found knowledge not only to pass the exam but also at work.

Jun 2024 18h 40m

Cryptography Algorithms

Cryptography Algorithms

Uncover history, principles, and cutting-edge insights in this new edition. Learn how algorithms defend against attacks and stay current with trends like IoT and quantum cryptography. Elevate your cybersecurity expertise with this essential resource.

Aug 2024 13h 40m