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Mastering Linux Security and Hardening

You're reading from   Mastering Linux Security and Hardening Secure your Linux server and protect it from intruders, malware attacks, and other external threats

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Product type Paperback
Published in Jan 2018
Publisher
ISBN-13 9781788620307
Length 376 pages
Edition 1st Edition
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Author (1):
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Donald A. Tevault Donald A. Tevault
Author Profile Icon Donald A. Tevault
Donald A. Tevault
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Table of Contents (12) Chapters Close

Preface 1. Running Linux in a Virtual Environment FREE CHAPTER 2. Securing User Accounts 3. Securing Your Server with a Firewall 4. Encrypting and SSH Hardening 5. Mastering Discretionary Access Control 6. Access Control Lists and Shared Directory Management 7. Implementing Mandatory Access Control with SELinux and AppArmor 8. Scanning, Auditing, and Hardening 9. Vulnerability Scanning and Intrusion Detection 10. Security Tips and Tricks for the Busy Bee 11. Other Books You May Enjoy

The advantages of using sudo


Used properly, the sudo utility can greatly enhance the security of your systems, and it can make an administrator's job much easier. With sudo, you can do the following:

  • Assign certain users full administrative privileges, while assigning other users only the privileges they need to perform tasks that are directly related to their respective jobs.
  • Allow users to perform administrative tasks by entering their own normal user passwords so that you don't have to distribute the root password to everybody and his brother.
  • Make it harder for intruders to break into your systems. If you implement sudo and disable the root user account, would-be intruders won't know which account to attack because they won't know which one has admin privileges.
  • Create sudo policies that you can deploy across an entire enterprise network even if that network has a mix of Unix, BSD, and Linux machines.
  • Improve your auditing capabilities because you'll be able to see what users are doing with...
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