... of the System Administrator
CHAPTER 2
Planning the Network
CHAPTER 3
Installing RedHat Linux
CHAPTER 4
Red HatLinux File System
CHAPTER 5
Red HatSystem Configuration Files
Part
I
b 363 2-X PtO1.F ... network,
installing RedHat Linux, and working
with the RedHatLinux file system and
configuration files.
b 363 2-X PtO1.F 2/21/02 8:33 AM Page 2
(Because of its built-in security features, Linux may not ... of other operating systems. Now, RedHat has employed innovations
that extend these duties even for the experienced Linux user. In this chapter, we
look at those requirements.
The Linux System...
... this official Red Hat
Linux guide is the one resource you need for a secure, high-performance
Linux network.
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ISBN 0- 764 5- 363 2-X
7
85555 09538
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Proven RedHatLinux Networking ... 13
Chapter 3 Installing RedHatLinux . . . . . . . . . . . . . . . . . . . . 27
Chapter 4 RedHatLinux File System . . . . . . . . . . . . . . . . . . 71
Chapter 5 RedHatSystem Configuration ... optimally. Chapter 16
explains the RedHat Network, a service available from RedHat that you can use to
keep your system current. You can register your systems with RedHat and then
receive...
... covered is the RedHat Network, a subscription service
available with RedHat Enterprise Linux that you can use to keep your system
current. You can register your systems with RedHat and then ... 262
Configuring IP Masquerading 263
Summary 263
Chapter 12 The Network File System 265
NFS Overview 265
Understanding NFS 266
What’s New with NFSv4? 268
NFS Advantages and Disadvantages 269
Planning an NFS ... fbetw.qxd 8/30/05 6: 37 PM Page xvi
01_5994 96 ffirs.qxd 8/30/05 6: 38 PM Page ii
Red Hat
đ
Linux
đ
Networking
and System Administration
Third Edition
01_5994 96 ffirs.qxd 8/30/05 6: 38 PM Page i
...
... Chapter 1
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Part Four System Administration 595
Chapter 26 Keeping Your System Updated with up2date
and the RedHat Network 597
Using the RedHat up2date ... Drivers 64 5
Generic Driver Options 64 5
Memory Technology Devices 64 5
Parallel Port Support 64 5
Plug and Play Support 64 6
Block Devices 64 6
ATA/ATAPI/MFM/RLL Support 64 7
SCSI Device Support 64 8
Old ... Agent 599
Updating Your System 60 2
Registering Your System 60 5
Accessing the RedHat Network with a Web Browser 60 8
Summary 61 4
Chapter 27 Upgrading and Customizing the Kernel 61 5
Determining Whether...
... RedHat boot disk starts your PC and the RedHatLinux installation
program. After you install RedHat Linux, you no longer need the Red Hat
boot disk (except when you want to reinstall RedHat ... a box that shows any operating
systems, if there are any, that were detected on your system. The Red Hat
Linuxsystem will be shown as the default system. If you want to boot another
system as ... installation section.
Creating the RedHat Boot Disk
To boot RedHatLinux for the first time and start the RedHatLinux installa-
tion program, you need a RedHat boot disk. For this step, you...
... the default operating system. The
default operatingsystem is the one with a check mark in the Default column
in Figure 3-10. In this case, RedHatLinux is the default operating system.
All ... change the system time on this screen.
Standard Installation 67
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71
As a system administrator, one of your jobs is installing and configuring Red
Hat on ... PC. Atable then lists
the Linux partition and any other partitions that may contain another operating
system. If your system has a Linux partition and a DOS partition (that actually
has Windows...
... box in front of a listed ser-
vice, requests for that service are accepted by your system.
86 Chapter 4
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The default selection here is to have the installation ... the system volume, use the utility here.
■■ System Settings — This menu item contains Enterprise Linux system
administration utilities and some GNOME configuration utilities as well.
■■ System ... Installation 93
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CROSS-REFERENCE Refer to Chapter 26 for more information about the
system status icon and how to update your system.
At the far right...
... typical Fedora and
Red Hat Enterprise Linux system.
142 Chapter 7
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141
The File System
Explained
IN THIS CHAPTER
■■ Understanding the File System Structure
■■ ... at
the file system structure are the file system commands, essential to proper file
system management. In addition to the native Linux file system, Fedora Core
and RedHat Enterprise Linux support ... second stage program that will begin the process of loading
the operatingsystem into system memory. GRUB uses a configuration file
128 Chapter 6
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Figure...
... /initrd-2 .6. 10-1.770_FC3.img
title Fedora Core (2 .6. 10-1. 766 _FC3)
root (hd0,1)
kernel /vmlinuz-2 .6. 10-1. 766 _FC3 ro root=/dev/VolGroup00/LogVol00 rhgb
quiet
initrd /initrd-2 .6. 10-1. 766 _FC3.img
title ... Enterprise Linux provide
support for many file systems. Linux supports those from other operating sys-
tems, remote file systems, memory file systems, CD-ROM file systems, virtual
file systems, ... some aliases that only he or she can use.
164 Chapter 8
13_5994 96 ch08.qxd 8/30/05 6: 37 PM Page 164
163
Examining the System
Configuration Files
IN THIS CHAPTER
■■ Examining the System Configuration...
... Page 1 96
so that the lines look like this:
192. 168 .1 .66 foo.xena.edu foo
192. 168 .1. 76 buffy.xena.edu buffy
152.2.210.81 sunsite.unc.edu sunsite
Setting Up Name Service Resolution Order
Now that ... /etc/rc6.d/K25sshd. Runlevel 6 is the shutdown
level, so that’s why its kill script is located in the rc6.d directory.
194 Chapter 8
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Note that case ... mappings
that follow this format
IP_address canonical_hostname aliases
Examining the System Configuration Files 191
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■■ Multiple_IO= 16, where a setting of 16...
... Window System 209
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205
This chapter introduces you to the X Window system that is used to provide a
graphical user interface (GUI) to the operating system. ... jobs that you sent to the printer.
228 Chapter 10
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14_5994 96 pt02.qxd 8/30/05 6: 18 PM Page 204
NOTE If you aren’t logged in as the root user, the system ... 10
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Managing the X Window System 211
file that was created during system installation. A description of the section of
the file follows the file.
# XFree86...
... and RedHat Enterprise Linux systems, the /etc/exports
file is the main NFS configuration file. It lists the file systems the server
exports, the systems permitted to mount the exported file systems, ... regularly
backed up.
The Network File System 269
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The TCP Wrappers package is covered in detail in Chapter 19. Rather than
preempt that discussion here, we suggest ... so that every computer
on your internal network could have Internet access.
264 Chapter 11
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with an IP address in the range 192. 168 .0.1 to 192. 168 .0.254...
... unique
name that refers to any group of systems that use the same NIS maps. NIS
domains function as system management tools providing a convenient method
to organize groups of systems that need to ... these
entries:
255.255.255.255 127.0.0.1
255.255.255.0 192. 168 .0.0
3 16 Chapter 13
19_5994 96 ch13.qxd 8/30/05 6: 24 PM Page 3 16
mount options. Again, /home/terry should not exist on the local system, but
the base directory, ... a complex, nontrivial subsystem, so it is entirely con-
ceivable that new bugs and exploits will be discovered.
The Network File System 307
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Figure...