This book provides code-intensive discussions with detailed recipes that help you understand better and learn faster.
More than 50 hands-on recipes to create and administer a secure Linux system locally as well as on a network
Enhance file system security and local and remote user authentication by using various security tools and different versions of Linux for different tasks
With the growing popularity of Linux, more and more administrators have started moving to the system to create networks or servers for any task. This also makes Linux the first choice for any attacker now. Due to the lack of information about security-related attacks, administrators now face issues in dealing with these attackers as quickly as possible. Learning about the different types of Linux security will help create a more secure Linux system.
Whether you are new to Linux administration or experienced, this book will provide you with the skills to make systems more secure.
With lots of step-by-step recipes, the book starts by introducing you to various threats to Linux systems. You then get to walk through customizing the Linux kernel and securing local files. Next you will move on to manage user authentication locally and remotely and also mitigate network attacks. Finally, you will learn to patch bash vulnerability and monitor system logs for security.
With several screenshots in each example, the book will supply a great learning experience and help you create more secure Linux systems.
What you will learn
Learn about various vulnerabilities and exploits in relation to Linux systems
Configure and build a secure kernel and test it
Learn about file permissions and security and how to securely modify files
Explore various ways to authenticate local users while monitoring their activities.
Authenticate users remotely and securely copy files on remote systems
Review various network security methods including firewalls using iptables and TCP Wrapper
Explore various security tools including Port Sentry, Squid Proxy, Shorewall, and many more
Understand Bash vulnerability/security and patch management
About the Author
Tajinder Kalsi is an innovative professional with more than 9 years of 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 independent 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, and he has covered more than 125 colleges and spoken to 10,000+ students.
In the past, he has reviewed books such as Web Application Penetration Testing with Kali Linux, Mastering Kali Linux for Advanced Penetration Testing, and Advanced Wireless Penetration Testing for Highly-Secured Environments.
You can find him on Facebook at www.facebook.com/tajinder.kalsi.tj, or contact him on his website at www.tajinderkalsi.com.
Product Description: The Mastering Linux Series consisting of 6 books (Fundamentals, System Administration, Servers, Storage, Security, Networking) provides you with a solid foundation about the Linux Operating System. It abstracts from a particular distribution by giving you the background knowledge to easily work with any Linux distribution out there.
Product Description: Unlike some operating systems, Linux doesn’t try to hide the important bits from you—it gives you full control of your computer. But to truly master Linux, you need to understand its internals, like how the system boots, how networking works, and what the kernel actually does.
In this completely revised second edition of the perennial best seller How Linux Works, author Brian Ward makes the concepts behind Linux internals accessible to anyone curious about the inner workings of the operating system. Inside, you’ll find the kind of knowledge that normally comes from years of experience doing things the hard way. You’ll learn: –How Linux boots, from boot loaders to init implementations (systemd, Upstart, and System V) –How the kernel manages devices, device drivers, and processes –How networking, interfaces, firewalls, and servers work –How development tools work and relate to shared libraries –How to write effective shell scripts
You’ll also explore the kernel and examine key system tasks inside user space, including system calls, input and output, and filesystems. With its combination of background, theory, real-world examples, and patient explanations, How Linux Works will teach you what you need to know to solve pesky problems and take control of your operating system.
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