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Practical Linux Security Cookbook

You're reading from   Practical Linux Security Cookbook Secure your Linux machines and keep them secured with the help of exciting recipes

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Product type Paperback
Published in Apr 2016
Publisher Packt
ISBN-13 9781785286421
Length 276 pages
Edition 1st Edition
Tools
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Authors (2):
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Michael A Lindner Michael A Lindner
Author Profile Icon Michael A Lindner
Michael A Lindner
Tajinder Kalsi Tajinder Kalsi
Author Profile Icon Tajinder Kalsi
Tajinder Kalsi
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Toc

Table of Contents (12) Chapters Close

Preface 1. Linux Security Problems 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. Patching a Bash Vulnerability 10. Security Monitoring and Logging Index

Using system tools – Whowatch


While keeping a watch on the network, an administrator would also want to keep a watch on users who are currently logged on to the system and also check what each user is doing on the machine.

Whowatch is the perfect tool for all these tasks. It uses a simple text-based interface, which is easy to use and can display information about a username, user process, and also the type of connection being used, such as SSH and telnet.

Getting ready

Since Whowatch doesn't come as a preinstalled package in Linux, we have to install it to use it. The command to install Whowatch is as follows:

apt-get install whowatch

How to do it…

To utilize the Whowatch tool to its maximum benefit, we have to understand the details of the tool properly:

  1. To start using the tool, just enter the whowatch command and a screen will appear, as shown here:

    The preceding screen lists all the user accounts that are logged in.

  2. From the list, we can select any user account, and when we press Enter, we can...

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