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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
Lock Free Chapter
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 7. LDAP – A Better Type of User

Having a local user account and password defined on each server and workstation for your access is not really practical. Imagine trying to enforce password changes when you may have to implement the change on 10 or 12 systems that you may use. You may also wish to consider what happens when a user leaves; do you really think the account will be deleted from every system each time? The reality is that where multiple systems are placed, some form of directory solution must be in place; this may be means of OpenLDAP, or even Active Directory. Yes, CentOS can join a Windows domain. We will look at 389-ds, the CentOS implementation of the Red Hat Directory Server. 389-ds is based on OpenLDAP, but with some pretty smart management tools. We are going to cover the following topics in this chapter:

  • LDAP concepts: In this section, you will understand terms that are used when talking about directory services
  • Installing 389-ds: This section involves...
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Tech Concepts
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Programming languages
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CentOS System Administration Essentials
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