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Mastering Linux Network Administration

You're reading from   Mastering Linux Network Administration Master the skills and techniques that are required to design, deploy, and administer real Linux-based networks

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Product type Paperback
Published in Nov 2015
Publisher Packt
ISBN-13 9781784399597
Length 260 pages
Edition 1st Edition
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Author (1):
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Jay LaCroix Jay LaCroix
Author Profile Icon Jay LaCroix
Jay LaCroix
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Table of Contents (12) Chapters Close

Preface 1. Setting up Your Environment FREE CHAPTER 2. Revisiting Linux Network Basics 3. Communicating Between Nodes via SSH 4. Setting up a File Server 5. Monitoring System Resources 6. Configuring Network Services 7. Hosting HTTP Content via Apache 8. Understanding Advanced Networking Concepts 9. Securing Your Network 10. Troubleshooting Network Issues Index

Inspecting and managing processes


In a typical troubleshooting scenario, you might have a process that is misbehaving or needs an action performed against it. If you're using a graphical desktop environment for a workstation, you might use a tool such as the GNOME System Monitor to investigate processes running on your system, and then kill the problem child. In most cases though, you probably won't have a desktop environment (at least not on servers), so you would use a command such as kill in order to get rid of whatever process is misbehaving. But before you can kill a process, you'll need to know its process identifier (PID). One method that works on all Linux systems to find the PID of a process is to open a terminal and us the ps command. Here's an example of its usage:

ps aux

Along with ps, it's common to use grep if you happen to already know the name of the process. In that case, you can pipe the output of ps aux into grep and then search for a process.

ps aux |grep httpd

The ps command...

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