L

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