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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
Tools
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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 a shared directory


The next act in our scenario involves creating a shared directory that all the members of our marketing department can use. Now, this is another one of those areas that engenders a bit of controversy. Some people like to put shared directories in the root level of the filesystem, while others like to put shared directories in the /home directory. And, some people even have other preferences. But really, it's a matter of personal preference and/or company policy. Other than that, it really doesn't much matter where you put them. For our purposes, to make things simple, I'll just create the directory in the root level of the filesystem:

[donnie@localhost ~]$ cd /

[donnie@localhost /]$ sudo mkdir marketing
[sudo] password for donnie:

[donnie@localhost /]$ ls -ld marketing
drwxr-xr-x. 2 root root 6 Nov 13 15:32 marketing
[donnie@localhost /]$

The new directory belongs to the root user. It has a permissions setting of 755, which permits read and execute access to everybody...

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