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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

Linux sXID

In Linux, normally a file has permissions to read, write, and execute. Apart from these permissions, it can also have special permissions such as SUID (Set owner User ID) and SGID. Due to these permissions, it is possible for a user to log in from their account and still run a particular file/program with the permissions of the actual file owner (which can be root also). sXid is the tool for monitoring SUID/SGID on a regular basis. Using this tool, we can track changes in the SUID/SGID of files and folders.

Getting ready

To use this tool, we need to install the sXid package on our Linux system. We can either use the apt-get command to install the package, or we can download the package and manually configure...

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