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E-raamat: Red Hat Enterprise Linux 6 Administration: Real World Skills for Red Hat Administrators

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  • Formaat: PDF+DRM
  • Ilmumisaeg: 17-Jan-2013
  • Kirjastus: Sybex Inc.,U.S.
  • Keel: eng
  • ISBN-13: 9781118620458
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  • Formaat: PDF+DRM
  • Ilmumisaeg: 17-Jan-2013
  • Kirjastus: Sybex Inc.,U.S.
  • Keel: eng
  • ISBN-13: 9781118620458
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A guide to RHEL administration covers such topics as web servers, clustering, storage, networking, file sharing, and security.

The definitive guide to administering a Red Hat Enterprise Linux 6 network

Linux professionals who need a go-to guide on version 6 of Red Hat Enterprise Linux (RHEL) will find what they need in this comprehensive Sybex book. It covers RHEL administration in detail, including how to set up and manage web and mail services, use RHEL in enterprise environments, secure it, optimize storage, configure for virtualization and high availability, and much more. It also provides a great study aid for those preparing for either the RHCSA or RHCE certification exam.

  • Red Hat is the Linux market leader, and Red Hat administrators are in demand
  • This Sybex guide is a comprehensive resource on Red Hat Enterprise Linux administration and useful for those preparing for one of the Red Hat certification exams
  • Covers setting up and managing web and mail services, using RHEL in enterprise environments, securing RHEL, and optimizing storage to fit your environment
  • Explores advanced RHEL configurations, including virtualization and high availability

Red Hat Enterprise Linux 6 Administration is the guide Linux professionals and Red Hat administrators need to stay current on the newest version.

Introduction xxiii
Part I Getting Familiar with Red Hat Enterprise Linux
1(66)
Chapter 1 Getting Started with Red Hat Enterprise Linux
3(38)
Linux, Open Source, and Red Hat
4(3)
Origins of Linux
4(1)
Distributions
5(1)
Fedora
6(1)
Red Hat Enterprise Linux and Related Products
7(2)
Red Hat Enterprise Linux Server Edition
7(1)
Red Hat Enterprise Linux Workstation Edition
8(1)
Red Hat Add-Ons
8(1)
Red Hat Directory Server
9(1)
Red Hat Enterprise Virtualization
9(1)
J Boss Enterprise Middleware
9(1)
Red Hat Cloud
9(1)
Installing Red Hat Enterprise Linux Server
9(24)
Exploring the GNOME User Interface
33(6)
Exploring the Applications Menu
34(1)
Exploring the Places Menu
35(1)
Exploring the System Menu
36(3)
Summary
39(2)
Chapter 2 Finding Your Way on the Command Line
41(26)
Working with the Bash Shell
42(3)
Getting the Best of Bash
42(1)
Useful Bash Key Sequences
43(1)
Working with Bash History
44(1)
Performing Basic File System Management Tasks
45(5)
Working with Directories
45(1)
Working with Files
46(4)
Piping and Redirection
50(5)
Piping
50(1)
Redirection
51(4)
Finding Files
55(1)
Working with an Editor
56(5)
Vi Modes
57(1)
Saving and Quitting
57(1)
Cut, Copy, and Paste
58(1)
Deleting Text
58(1)
Replacing Text
58(1)
Using sed for the Replacement of Text
59(2)
Getting Help
61(5)
Using man to Get Help
61(4)
Using the -- help Option
65(1)
Getting Information on Installed Packages
65(1)
Summary
66(1)
Part II Administering Red Hat Enterprise Linux
67(120)
Chapter 3 Performing Daily System Administration Tasks
69(30)
Performing Job Management Tasks
70(2)
System and Process Monitoring and Management
72(10)
Managing Processes with ps
73(1)
Sending Signals to Processes with the kill Command
74(2)
Using top to Show Current System Activity
76(4)
Managing Process Niceness
80(2)
Scheduling Jobs
82(1)
Mounting Devices
83(4)
Working with Links
87(1)
Creating Backups
88(1)
Managing Printers
89(2)
Setting Up System Logging
91(7)
Setting Up Rsyslog
92(2)
Common Log Files
94(2)
Setting Up Logrotate
96(2)
Summary
98(1)
Chapter 4 Managing Software
99(22)
Understanding RPM
100(1)
Understanding Meta Package Handlers
101(8)
Creating Your Own Repositories
103(1)
Managing Repositories
104(2)
RHN and Satellite
106(3)
Installing Software with Yum
109(6)
Querying Software
115(3)
Extracting Files from RPM Packages
118(1)
Summary
119(2)
Chapter 5 Configuring and Managing Storage
121(34)
Understanding Partitions and Logical Volumes
122(1)
Creating Partitions
123(6)
Creating File Systems
129(6)
File Systems Overview
129(2)
Creating File Systems
131(1)
Changing File System Properties
132(2)
Checking the File System Integrity
134(1)
Mounting File Systems Automatically Through fstab
135(4)
Working with Logical Volumes
139(10)
Creating Logical Volumes
139(4)
Resizing Logical Volumes
143(3)
Working with Snapshots
146(3)
Replacing Failing Storage Devices
149(1)
Creating Swap Space
149(2)
Working with Encrypted Volumes
151(3)
Summary
154(1)
Chapter 6 Connecting to the Network
155(32)
Understanding Network Manager
156(8)
Working with Services and Runlevels
156(2)
Configuring the Network with Network Manager
158(2)
Working with system-config-network
160(1)
Understanding Network Manager Configuration Files
161(3)
Understanding Network Service Scripts
164(1)
Configuring Networking from the Command Line
164(5)
Troubleshooting Networking
169(4)
Setting Up IPv6
173(1)
Configuring SSH
174(9)
Enabling the SSH Server
175(2)
Using the SSH Client
177(1)
Using PuTTY on Windows Machines
177(1)
Configuring Key-Based SSH Authentication
178(3)
Using Graphical Applications with SSH
181(1)
Using SSH Port Forwarding
182(1)
Configuring VNC Server Access
183(2)
Summary
185(2)
Part III Securing Red Hat Enterprise Linux
187(126)
Chapter 7 Working with Users, Groups, and Permissions
189(40)
Managing Users and Groups
190(11)
Commands for User Management
190(2)
Managing Passwords
192(1)
Modifying and Deleting User Accounts
193(1)
Behind the Commands: Configuration Files
194(4)
Creating Groups
198(3)
Using Graphical Tools for User and Group Management
201(2)
Using External Authentication Sources
203(5)
Understanding the Authentication Process
208(1)
Understanding sssd
208(1)
Understanding nsswitch
209(3)
Understanding Pluggable Authentication Modules
210(2)
Managing Permissions
212(15)
Understanding the Role of Ownership
212(2)
Basic Permissions: Read, Write, and Execute
214(2)
Advanced Permissions
216(4)
Working with Access Control Lists
220(5)
Setting Default Permissions with umask
225(1)
Working with Attributes
226(1)
Summary
227(2)
Chapter 8 Understanding and Configuring SELinux
229(16)
Understanding SELinux
230(3)
What Is SELinux?
231(1)
Understanding the Type Context
231(2)
Selecting the SELinux Mode
233(2)
Working with SELinux Context Types
235(2)
Configuring SELinux Policies
237(1)
Working with SELinux Modules
238(1)
Setting Up SELinux with system-config-selinux
239(1)
Troubleshooting SELinux
239(5)
Summary
244(1)
Chapter 9 Working with KVM Virtualization
245(24)
Understanding the KVM Virtualization Architecture
246(2)
Red Hat KVM Virtualization
246(1)
Red Hat Enterprise Virtualization
247(1)
Preparing Your Host for KVM Virtualization
248(1)
Installing a KVM Virtual Machine
249(6)
Managing KVM Virtual Machines
255(8)
Managing Virtual Machines with Virtual Machine Manager
256(6)
Managing Virtual Machines from the virsh Interface
262(1)
Understanding KVM Networking
263(5)
Summary
268(1)
Chapter 10 Securing Your Server with iptables
269(24)
Understanding Firewalls
270(1)
Setting Up a Firewall with system-config-firewall
271(8)
Allowing Services
272(3)
Trusted Interfaces
275(1)
Masquerading
275(3)
Configuration Files
278(1)
Setting Up a Firewall with iptables
279(8)
Understanding Tables, Chains, and Rules
280(1)
Understanding How a Rule Is Composed
280(1)
Configuration Example
281(6)
Advanced iptables Configuration
287(2)
Configuring Logging
287(2)
The Limit Module
289(1)
Configuring NAT
289(3)
Summary
292(1)
Chapter 11 Setting Up Cryptographic Services
293(20)
Introducing SSL
294(2)
Proof of Authenticity: the Certificate Authority
295(1)
Managing Certificates with openssl
296(6)
Creating a Signing Request
302(1)
Working with GNU Privacy Guard
302(10)
Creating GPG Keys
303(2)
Key Transfer
305(2)
Managing GPG Keys
307(1)
Encrypting Files with GPG
308(2)
GPG Signing
310(1)
Signing RPM Files
310(2)
Summary
312(1)
Part IV Networking Red Hat Enterprise Linux
313(98)
Chapter 12 Configuring OpenLDAP
315(18)
Understanding OpenLDAP
316(2)
Types of Information in OpenLDAP
316(1)
The LDAP Name Scheme
316(1)
Replication and Referrals
317(1)
Configuring a Base OpenLDAP Server
318(2)
Installing and Configuring OpenLDAP
318(2)
Populating the OpenLDAP Database
320(12)
Creating the Base Structure
320(3)
Understanding the Schema
323(3)
Managing Linux Users and Groups in LDAP
326(6)
Using OpenLDAP for Authentication
332(1)
Summary
332(1)
Chapter 13 Configuring Your Server for File Sharing
333(22)
Configuring NFS4
334(4)
Setting Up NFSv4
335(2)
Mounting an NFS Share
337(1)
Making NFS Mounts Persistent
338(1)
Configuring Automount
338(4)
Configuring Samba
342(6)
Setting Up a Samba File Server
342(3)
Samba and SELinux
345(1)
Samba Advanced Authentication Options
346(1)
Accessing Samba Shares
346(2)
Offering FTP Services
348(3)
File Sharing and SELinux
351(1)
Summary
352(3)
Chapter 14 Configuring DNS and DHCP
355(20)
Understanding DNS
356(3)
The DNS Hierarchy
356(1)
DNS Server Types
357(1)
The DNS Lookup Process
358(1)
DNS Zone Types
359(1)
Setting Up a DNS Server
359(10)
Setting Up a Cache-Only Name Server
359(2)
Setting Up a Primary Name Server
361(7)
Setting Up a Secondary Name Server
368(1)
Understanding DFICP
369(1)
Setting Up a DHCP Server
370(4)
Summary
374(1)
Chapter 15 Setting Up a Mail Server
375(10)
Using the Message Transfer Agent
376(1)
Understanding the Mail Delivery Agent
377(1)
Understanding the Mail User Agent
377(1)
Setting Up Postfix as an SMTP Server
377(6)
Working with Mutt
378(2)
Basic Configuration
380(2)
Internet Configuration
382(1)
Configuring Dovecot for POP and IMAP
383(1)
Further Steps
384(1)
Summary
384(1)
Chapter 16 Configuring Apache on Red Hat Enterprise Linux
385(26)
Configuring the Apache Web Server
386(10)
Creating a Basic Website
386(1)
Understanding the Apache Configuration Files
387(6)
Apache Log Files
393(1)
Apache and SELinux
393(2)
Getting Help
395(1)
Working with Virtual Hosts
396(3)
Securing the Web Server with TLS Certificates
399(5)
Configuring Authentication
404(3)
Setting Up Authentication with .htpasswd
405(1)
Configuring LDAP Authentication
406(1)
Setting Up MySQL
407(2)
Summary
409(2)
Part V Advanced Red Hat Enterprise Linux Configuration
411(166)
Chapter 17 Monitoring and Optimizing Performance
413(54)
Interpreting What's Going On: The top Utility
414(6)
CPU Monitoring with top
415(2)
Memory Monitoring with top
417(2)
Process Monitoring with top
419(1)
Analyzing CPU Performance
420(5)
Understanding CPU Performance
421(1)
Context Switches and Interrupts
421(4)
Using vmstat
425(1)
Analyzing Memory Usage
425(8)
Page Size
425(1)
Active vs. Inactive Memory
426(1)
Kernel Memory
427(3)
Using ps for Analyzing Memory
430(3)
Monitoring Storage Performance
433(7)
Understanding Disk Activity
434(4)
Finding Most Busy Processes with iotop
438(2)
Setting and Monitoring Drive Activity with hdparm
440(1)
Understanding Network Performance
440(6)
Optimizing Performance
446(20)
Using a Simple Performance Optimization Test
447(2)
CPU Tuning
449(2)
Tuning Memory
451(2)
Optimizing Interprocess Communication
453(2)
Tuning Storage Performance
455(4)
Network Tuning
459(5)
Optimizing Linux Performance Using cgroups
464(2)
Summary
466(1)
Chapter 18 Introducing Bash Shell Scripting
467(38)
Getting Started
468(4)
Elements of a Good Shell Script
468(3)
Executing the Script
471(1)
Working with Variables and Input
472(17)
Understanding Variables
472(2)
Variables, Subshells, and Sourcing
474(2)
Working with Script Arguments
476(4)
Asking for Input
480(2)
Using Command Substitution
482(1)
Substitution Operators
483(2)
Changing Variable Content with Pattern Matching
485(4)
Performing Calculations
489(2)
Using Control Structures
491(12)
Using if then else
493(3)
Using case
496(2)
Using while
498(1)
Using until
499(1)
Using for
500(3)
Summary
503(2)
Chapter 19 Understanding and Troubleshooting the Boot Procedure
505(24)
Introduction to Troubleshooting the Boot Procedure
506(1)
Configuring Booting with GRUB
507(9)
Understanding the grub.conf Configuration File
507(3)
Changing Boot Options
510(3)
Using the GRUB Command Line
513(1)
Reinstalling GRUB
514(1)
GRUB behind the Scenes
514(2)
Common Kernel Management Tasks
516(5)
Analyzing Availability of Kernel Modules
517(1)
Loading and Unloading Kernel Modules
518(1)
Loading Kernel Modules with Specific Options
519(2)
Upgrading the Kernel
521(1)
Configuring Service Startup with Upstart
521(3)
Basic Red Hat Enterprise Linux Troubleshooting
524(3)
Summary
527(2)
Chapter 20 Introducing High-Availability Clustering
529(32)
Understanding High-Availability Clustering
530(5)
The Workings of High Availability
530(1)
High-Availability Requirements
531(3)
Red Hat High-Availability Add-on Software Components
534(1)
Configuring Cluster-Based Services
535(6)
Setting Up Bonding
535(2)
Setting Up Shared Storage
537(4)
Installing the Red Hat High Availability Add-On
541(13)
Building the Initial State of the Cluster
542(4)
Configuring Additional Cluster Properties
546(3)
Configuring a Quorum Disk
549(2)
Setting Up Fencing
551(3)
Creating Resources and Services
554(5)
Troubleshooting a Nonoperational Cluster
558(1)
Configuring GFS2 File Systems
559(1)
Summary
560(1)
Chapter 21 Setting Up an Installation Server
561(16)
Configuring a Network Server As an Installation Server
562(1)
Setting Up a TFTP and DHCP Server for PXE Boot
563(5)
Installing the TFTP Server
564(1)
Configuring DHCP for PXE Boot
565(1)
Creating the TFTP PXE Server Content
565(3)
Creating a Kickstart File
568(8)
Using a Kickstart File to Perform an Automated Installation
568(2)
Modifying the Kickstart File with system-config-kickstart
570(3)
Making Manual Modifications to the Kickstart File
573(3)
Summary
576(1)
Appendix A Hands-On Labs 577(12)
Appendix B Answers to Hands-On Labs 589(18)
Glossary 607(18)
Index 625
Sander van Vugt is an independent technical trainer, consultant, and author of numerous titles on Linux. He has been using Linux almost since its inception, having first used it in 1992. Sander currently spends much of his time travelling around the world teaching Linux, including Red Hat. He is also a regular contributor to such publications as searchenterpriselinux.com and a frequent speaker at the leading Linux conferences.
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