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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

Creating an inherited access control list for a directory


There may be times when you'll want all files that get created in a shared directory to have the same access control list. We can do that by applying an inherited ACL to the directory. Although, understand that, even though this sounds like a cool idea, creating files in the normal way will cause files to have the read/write permissions set for the group, and the read permission set for others. So, if you're setting this up for a directory where users just create files normally, the best that you can hope to do is to create an ACL that adds either the write or execute permissions for someone. Either that, or ensure that users set the 600 permissions settings on all files that they create, assuming that users really do need to restrict access to their files.

On the other hand, if you're creating a shell script that creates files in a specific directory, you can include chmod commands to ensure that the files get created with the restrictive...

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