People sometimes forget passwords, even if they're administrators. And sometimes, people buy used computers but forget to ask the seller what the password is. (Yes, I've done that.) That's okay, though, because all of the major operating systems have ways to let you either reset or recover a lost administrator password. That's handy, except that it does kind of make the whole idea of having login passwords a rather moot point when someone has physical access to the machine. Let's say that your laptop has just been stolen. If you haven't encrypted the hard drive, it would only take a few minutes for the thief to reset the password and to steal your data. If you have encrypted the drive, the level of protection would depend on which operating system you're running. With standard Windows folder encryption, the thief would be able to access the encrypted folders just by resetting the password. With LUKS whole-disk encryption on a Linux machine, the thief...
Mastering Linux Security and Hardening
By :
Mastering Linux Security and Hardening
By:
Overview of this book
This book has extensive coverage of techniques that will help prevent attackers from breaching your system, by building a much more secure Linux environment. You will learn various security techniques such as SSH hardening, network service detection, setting up firewalls, encrypting file systems, protecting user accounts, authentication processes, and so on. Moving forward, you will also develop hands-on skills with advanced Linux permissions, access control, special modes, and more. Lastly, this book will also cover best practices and troubleshooting techniques to get your work done efficiently.
By the end of this book, you will be confident in delivering a system that will be much harder to compromise.
Table of Contents (15 chapters)
Title Page
Packt Upsell
Contributors
Preface
Free Chapter
Running Linux in a Virtual Environment
Securing User Accounts
Securing Your Server with a Firewall
Encrypting and SSH Hardening
Mastering Discretionary Access Control
Access Control Lists and Shared Directory Management
Implementing Mandatory Access Control with SELinux and AppArmor
Scanning, Auditing, and Hardening
Vulnerability Scanning and Intrusion Detection
Security Tips and Tricks for the Busy Bee
Other Books You May Enjoy
Customer Reviews