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Practical Linux Security Cookbook

You're reading from   Practical Linux Security Cookbook Secure your Linux environment from modern-day attacks with practical recipes

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Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781789138399
Length 482 pages
Edition 2nd Edition
Tools
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Author (1):
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Tajinder Kalsi Tajinder Kalsi
Author Profile Icon Tajinder Kalsi
Tajinder Kalsi
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Toc

Table of Contents (15) Chapters Close

Preface 1. Linux Security Problem FREE CHAPTER 2. Configuring a Secure and Optimized Kernel 3. Local Filesystem Security 4. Local Authentication in Linux 5. Remote Authentication 6. Network Security 7. Security Tools 8. Linux Security Distros 9. Bash Vulnerability Patching 10. Security Monitoring and Logging 11. Understanding Linux Service Security 12. Scanning and Auditing Linux 13. Vulnerability Scanning and Intrusion Detection 14. Other Books You May Enjoy

Using chown to change ownership of files and directories

File ownership is fundamental in Linux. As every file is associated with an owner and a group, we can change the owner of a file or directory using the chown command.

How to do it...

To understand the use of chown, let's follow these steps:

  1. To understand the use of the chown command, let's create a file named file1.txt and a user named user1:

The previous command for changing password information is optional. You can ignore it if you want to.

  1. Now, let's check the current owner of file1.txt.

We can see that the current owner for both the files is root and it belongs to the root group.

  1. Let's change the ownership of file1.txt to user1:

As seen...

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