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  • Book Overview & Buying CentOS System Administration Essentials
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CentOS System Administration Essentials

CentOS System Administration Essentials

By : Andrew Mallett
4.2 (13)
Buy this Book
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CentOS System Administration Essentials

CentOS System Administration Essentials

4.2 (13)
By: Andrew Mallett
Buy this Book

Overview of this book

If you are a Linux administrator who is looking to gain knowledge that differentiates yourself from the crowd, then this is the book for you. Beginners who have a keen interest to learn more about Linux administration will also progress quickly with this resourceful learning guide.
Table of Contents (13 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Taming vi
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1. Taming vi
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CLI trickery – shortcuts that you will love
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Vim and vi
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Getting the .vimrc setup the way you like
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Search and replace
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Learning to remove extraneous comments from a file with a few deft key strokes
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Summary
2
2. Cold Starts
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2. Cold Starts
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The GRUB and MBR
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When is the root filesystem not the root filesystem?
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Working on the GRUB console
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Protecting the GRUB menu with passwords
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Boot splashing with plymouth
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Summary
3
3. CentOS Filesystems – A Deeper Look
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3. CentOS Filesystems – A Deeper Look
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A magician's secret
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Special permissions
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Naming your pipes
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Understanding the command stat
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Enterprise filesystem shootout
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Using BTRFS snapshots
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Summary
4
4. YUM – Software Never Looked So Good
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4. YUM – Software Never Looked So Good
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Managing software installation with RPM files
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Creating your own RPM file
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Creating a YUM Repository
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Summary
5
5. Herding Cats – Taking Control of Processes
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5. Herding Cats – Taking Control of Processes
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Managing services with Upstart
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Creating your own Upstart script
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Managing processes
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Summary
6
6. Users – Do We Really Want Them?
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6. Users – Do We Really Want Them?
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Managing public and private groups
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Getent
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Quotas
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Scripting user creation
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Summary
7
7. LDAP – A Better Type of User
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7. LDAP – A Better Type of User
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LDAP concepts
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Installing 389-ds
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LDAP user account management
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LDAP authentication
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Summary
8
8. Nginx – Deploying a Performance-centric Web Server
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8. Nginx – Deploying a Performance-centric Web Server
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Installing and configuring Nginx
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Installing PHP
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Installing MySQL
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Create dynamic web content
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Summary
9
9. Puppet – Now You Are the Puppet Master
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9. Puppet – Now You Are the Puppet Master
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Installing the Puppet master
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Puppet resource
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Managing packages, services, and files
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Summary
10
10. Security Central
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10. Security Central
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Understanding PAM configuration files
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Limits of PAM
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SELinux
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Hardening Linux
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Summary
11
11. Graduation Day
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11. Graduation Day
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Securing remote access to your system
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Best practices of OpenLDAP
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Best practices of Nginx
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Mastering Puppet
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What's new in CentOS 7
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Summary
12
Index
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Index

Chapter 5. Herding Cats – Taking Control of Processes

All too often, Linux administrators without the insight that you have, will leave services running as shipped after a Vanilla install of CentOS. We know how important it is to be able to justify each running process and service on systems that we manage, and in this chapter, you will gain the insight to manage this. While we are here, we will take a look at the new Upstart services that are replacing the System V scripts, which we have become so accustomed to. Here is a list of sections we will go through in this chapter:

  • Managing services with Upstart: Investigate how to control services in CentOS 6.5 using Upstart and the /etc/init and /etc/event.d directories
  • Creating your own Upstart script: Learn how to create custom startup script for Upstart to manage your own needs at system boot
  • Managing processes: Gain practice with the p series of tools from the package procps to manage running processes: ps, pstree, pgrep, pmap...
CONTINUE READING
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Tech Concepts
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Programming languages
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CentOS System Administration Essentials
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