lab questions and answers
Apache and Squid, 487, 489–491
booting, 176–179, 181–182
DNS, 580, 582–584
e-mail, 606–607, 609–611
filesystem administration, 213–214, 216–219
hardware and installation, 134–139, 141–142
kernels, 434–436, 438–442
network file sharing services, 549–551, 553–556
NTP, 641–642, 644–647
package management, 264–266, 268–269
prerequisite skills, 63, 65–67
security, 721–722, 724–726
system administration tools, 368–370, 372–374
troubleshooting, 762–763, 765–766
user administration, 322–323, 325–327
X Window System, 685–686, 688–690
LDAP (Lightweight Directory Access Protocol)
about, 272, 807
configuring network clients, 314–315
database checks with Red Hat
Authentication Configuration
tool, 316–317
exam requirements for client connections in, 313
searching database with Name Service Switch file, 315–316
LDP (Linux Documentation Project), 72, 807
LE (logical extent), 808
less command, 21, 29
lftp command, 51–53, 807
/lib/modules/kernel_version/ directory, 385–388
licensing, 122
Lightweight Directory Access Protocol. See LDAP
LILO (Linux Loader), 147
Line Print Daemon. See LPD
Line Printer Next Generation (LPRng), 341
linking files, 22
Linux. See Red Hat Enterprise Linux
linux askmethod command, 92, 93
Linux Documentation Project (LDP), 72, 807
Linux editors, 8–11
availability of GUI-text editors during exam, 11
command mode in vi, 9–10
creating new user in vi, 10–11
Linux Hardware HOWTO document, 72
linux rescue environment, 735–742
illustrated, 736, 737, 738, 739
importance of, 728
no mount, 741–742
read-only, 741
standard, 738–740
testing troubleshooting scenarios with, 731
listing installed RPMs, 230
ln command, 22
local network file systems, 44
local NTP servers, 636–637
localhost.zone file, 567
localizing options for Squid, 480–481
locate command, 21, 23, 807
log files for Apache, 471–472
logical extent (LE), 808
Logical Volume Manager. See LVM
logical volumes. See LVs
logins
messages with /etc/nologin file, 309
mounting shared Samba directories during, 521–523
PAM user verification during, 306–308
reviewing recent for crackers, 274
using /etc/pam.d/login for configuring, 308–310, 312
logrotate command utility, 807
lpc command, 807
lpc status command, 348
LPD (Line Print Daemon)
about, 341
substituting for CUPS, 354
using LPD commands, 347–349
lpq command, 26, 348, 807
lpr command, 26, 348, 808
lprm command, 26, 349, 808
LPRng (Line Printer Next Generation), 341
ls command, 20
ls -Z command, 706, 707
lsattr command, 808
lvcreate command, 417, 808
lvdisplay command, 808
lvextend command, 418, 808
LVM (Logical Volume Manager), 417–430
about, 417–418
commands used with, 420–421
configuring during exam, 418
converting LVM1 filesystem to LVM2, 430
creating partition with, 18
creating physical volume, 418–419
exam preparation for, 376, 418
GUI LVM Management tool for, 425–430
one filesystem configured for multiple partitions, 17
RAID array used with, 417
setting up and using logical volumes, 419–420
summarized, 430
time required for partitions, 103
two-minute drill, 432
using, 97
volume group creation in, 419
lvremove command, 808
LVs (logical volumes)
adding, 423–424, 425–427, 757–758
/boot files unreadable on, 423
commands for managing, 421, 422
creating and using, 419–420
defined, 808
exam skills required for, 184
expanding, 758
filesystems and, 97
GUI LVM Management tool for adding, 425–427
partitioning utilities, 185–196
removing, 424, 428, 429, 759
resizing, 424–425, 428–430
troubleshooting, 756–759