RAID (Redundant Array of Independent Disks), 410–416
about software RAID, 410
configuring partitions for, 96
creating RAID arrays, 412, 414–415
defined, 811
exam preparation for, 376
hard drive backups using, 37
hotswappable hardware for, 412
mirroring /home partition with, 415–417
modifying existing RAID array, 414
RAID 0, 410–411, 811
RAID 1, 411, 423, 811–812
RAID 4, 411
RAID 5, 411, 812
RAID 6, 411, 812
RAID 10, 412
reviewing existing RAID array, 413–414
summarized, 430
two-minute drill, 432
using LVM with, 417
RAID 0, 410–411, 811
RAID 1, 411, 423, 811–812
RAID 4, 411
RAID 5, 411, 812
RAID 6, 411, 812
RAID 10, 412
RAM. See memory
reading
mail messages, 50, 601
text files with cat command, 21
read-only linux rescue environment, 741
rebooting
Apache startup on, 447–449
Postfix after modifying configuration, 598–599
Squid server startup on, 477–478
starting sendmail on, 596
using chkconfig to verify service active after, 619
vsFTP server startup on, 513
rebuild distributions
configuring software updates on first boot, 124
installation DVD for, 70
studying for installation of, 71
testing knowledge of, 4
recompiling kernels, 396–408
advantages of, 377
basic kernel configuration, 400–401
Block Layermenu options for, 402
Busmenu options for, 402
Code Maturity Level Options menu, 401
compiling and installing custom kernels, 408–409
configuration scripts for, 396–400
configuring new kernel with make config, 397–398
creating .config file with make menuconfig, 398
Cryptographic menu options for, 408
Device Drivers menu options for, 403–407
Executable File Formats menu options for, 402
File Systems menu options for, 407
General Setup menu options for, 401
Instrumentation Support menu options for, 407
Kernel Hacking menu options for, 407
Library Routines menu options for, 408
Loadable Module Support menu options for, 402
making graphic configuration menus, 398–400
Networking menu options for, 403
options for kernel configuration, 400–408
Power Management menu options for, 402
Process Debugging Support option, 402
Processor Type and Features menu options for, 402
Security menu options for, 407
space needed for, 392
standard kernel configuration, 401
Red Hat Authentication Configuration tool, 316–317
Red Hat Certified Engineer exam. See RHCE exam
Red Hat Certified Technician exam. See RHCT exam
Red Hat Display Settings tool, 651, 670–673
Red Hat Domain Name Service configuration tool, 561, 576
Red Hat Enterprise Linux (RHEL). See also SELinux; third-party repositories
about, 53
adding to Windows network, 528
basic downloading steps for, 55
configuring Samba computer on Active Directory network, 526
development of, 444
differences from Unix, 3
DNS client configuration files installed with, 559
downloading, 53–54, 60
Dynamic DNS and, 558
Fedora Core 5/6, 54–55
Fedora Linux, 804
graphics support in, 653
GUI printer management for GNOME desktop, 349
Hardware Abstraction Layer, 73–74
Hardware Compatibility List, 72
Intel 32-bit architecture for, 5
kernel configuration for, 401
logging daemons in, 360
memory requirements for, 6–7, 72, 76
multiple monitors for X.org servers, 660
preventing unauthorized access to, 700
rebuild distributions, of, 4
reloading or restarting service with service command, 35
sharing Samba directory with workstation running, 535–536
single-user mode for, 814
software RAID, 410
source RPMs for, 54, 394
storage space for partitions, 103–104
system logs, 363
third-party repositories for, 54, 237, 241, 242
unable to open SELinux Management Tool if SELinux disabled, 83
using as DNS client, 560–561
Windows interoperability with Samba, 519
Red Hat Hardware Compatibility List (HCL), 72
Red Hat httpd Configuration tool for Apache, 475–476
Red Hat Network (RHN)
about, 234–235
benefits for remote systems with, 237–238
defined, 812
not included in Red Hat Exam Prep guide, 234
registration for, 235–236
Red Hat Package Manager (RPM), 222–227
automatic dependency resolution for updates, 237
building RHEL RPMs, 233–234
changing compile options for source RPM, 231–232
creating custom RPMs from source, 230, 232–233
custom source and binary RPMs, 232–233
defined, 223–224, 812
directory structure of /usr/src/ redhat, 231
installing RPM packages, 224–225
listing installed RPMs, 230
queries for, 227–228
quota RPM package, 292–293
reference guides to RPM system, 232
remote installation of RPMs, 226
removing RPM packages, 225
source RPM installations, 230
summary of package management, 260
testing packages, 225
updating kernel RPM, 226–227
validating package signature, 228
verifying installed packages, 229
Red Hat Printer Configuration tool, 342–347
adding printers with, 26
choosing printer manufacturer, 344, 346
configuring remote and local printers, 343–344
illustrated, 347
printer and driver selection from, 345, 346
printer device options for, 344, 345
selecting type of connection in, 344, 345
using, 342–343
Red Hat User Manager, 277–280
adding user with, 279–280
illustrated, 279
interface for, 277–278
root user password required to run, 279
starting, 278–279
redirection arrows (>), 29, 30
Redundant Array of Independent Devices. See RAID
refresh rate, 812
registration for Red Hat Network, 235–236
reinstalling Linux during exam, 126
relative paths, 20
remote X applications
starting display from remote clients, 675–676
troubleshooting, 676–677
Remote Name Daemon Control (RNDC) key, 569–570
remote systems
installation RPMs for, 226
setting up filesystems for, 44
using Red Hat Network with, 237–238
removable media, mounting, 201–203
removing
kernel modules, 387–388
logical volumes, 424, 428, 429, 759
RPM packages, 225
reports, quota, 298–299
repquota command, 812
rescue command, 90
rescue disk, 90
rescue environment. See linux rescue environment
reserved domain names, 466
resize2fs command, 813
resizing logical volumes, 424–425, 428–430
reverse lookups, 567, 568
reverse zone
about, 572–573
defined, 813
not delegated, 574
reviewing
existing RAID array, 413–414
recent logins, 274
RHCE exam. See also exam
components of and requirements for, 768
configuring Samba with smb.conf file, 524
defined, 812
diagnosing and correcting NFS network services, 508
DNS topics on, 558, 563, 567
e-mail topics on, 586, 587
filesystem administration topics on, 184
implementing packet filtering and/or NAT, 482
Installation and Configuration exercises, 776–777, 778–781, 793–794, 795–798
installation topics on, 70, 71, 272
knowledge of DHCP servers on, 627
linux rescue environment, 735
managing kernels, 376
network services on, 445, 495
NTP configuration and troubleshooting added to, 171
reinstalls during, 126
security topics on, 692
skills addressed with system administration tools, 330
slave name server configuration for, 565
Troubleshooting and System Maintenance exercises, 770–772, 773–776, 784–785, 786–788, 789–792
troubleshooting skills and objectives, 728, 729, 748–759
RHCT exam. See also exam
Apache and Squid services not on, 445
booting into runlevel of choice, 733–735
components of and requirements for, 768
filesystem administration topics on, 184
Installation and Configuration exercises, 776–778, 779–781, 793–795, 796–798
installation topics on, 70, 71, 272
knowledge of DHCP clients on, 627
managing kernels, 376
NFS server topics, 495
reinstalls during, 126
skills addressed with system administration tools, 330
Troubleshooting and System Maintenance exercises, 769–770, 772–773, 785–786, 788–789
troubleshooting skills and objectives, 728, 729, 742–748, 759
RHN. See Red Hat Network
rndc command, 575, 813
RNDC (Remote Name Daemon Control) key, 569–570
root, 813
root directory
absolute path and, 20
indicated by forward slash, 12
mounting via linux rescue environment, 738–740
standard subdirectories of, 13
root passwords, 108
root shell prompt (#), 741
root user account
about, 273–274
checking PATH for, 28
logging in for exam as, 273
NFS root squash behavior, 503
password required to run Red Hat User Manager, 279
running commands from, 15
running yum command from, 239
/root/install.log file, 127
router, 813
routing, 705
routing tables, 338–339
rpm -i kernel.rpm command, 389, 390
rpm command
adding packages with, 111
exam preparation for, 222
query options for, 228
yum command as supplement to, 223
RPM packages. See packages; Red Hat Package Manager; source RPMs
rpm -U kernel.rpm command, 389, 390
rpmbuild command, 231, 813
runlevels, 161–167
about, 161, 813
activating NFS directories at appropriate, 501
booting into different, 144, 164–167, 733
determining with /etc/inittab, 159–160
functionality of, 161–162
scripts for, 162–164
verifying for activated service, 169