Index_P

P

pack command

Perl, 551

Package Management Tool, 293

adding/removing packages, 298

configuration files, 302

functions, 293, 295, 296, 297

package installation, 298, 302

Remove Packages window, 296

removing packages, 299, 302

starting, 293

Update System GUI, 296

packages

APT, 329, 330, 332

balsa, 309

compiling

application builds, 315, 316, 317, 318, 319

development tools, installation, 314, 315

DHCP server

installation, 399

installation, 308, 309, 310

selecting for, 26

integrity verification, 312

managing

Yum, 323, 324, 325, 326, 327, 328, 329

queries

RPM, 292

RPM Command Line Interface Tool, 303, 304, 305, 306

removing, 310, 311

Package Management Tool, 299, 302

RPM

security, 306, 307

signed

verification, 308

source

uncompiled, 313, 314

TAR files, 313, 314

upgrades, 311

packet filters

firewalls and, 452

panel

desktop, 40

notification area, 39

shortcut buttons , 39

shortcuts

adding, 45

applications, 45, 46

panel, desktop, 38

parent processes, 78

parsing

Perl and, 564

parted command, 203

partitions

dual boot systems, 200

fdisk command and, 203

hard disk, 207

installation, 11

dual-boot system, 13, 15, 17

existing partitions, 17, 20

managing, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208

filesystems supported, 200, 201

parted command and, 203

super block, 208

swap, 207

passwd

command, 267

program

permissions, 179

passwords, 258, 412

/etc/passwd and, 491

brute force attacks, 260

changing

own account, 268, 269

cracking, 413, 414, 416, 417, 418

desktop configuration, 77

dictionary attacks, 261

hashes, 412

selecting, 412, 413

shadow password file, 412

User Manager

/etc/shadow file, 261, 262

encryption, 260

guessing, 260

patches

creating, 585, 586

patching kernel

VPNs and, 459, 460

path

invoking programs and, 54, 55

path name , 54

PCI devices

information detection, 71

PDF Viewer, 161

performance

Apache Web server, 345

Perl

advantages, 542

archives, 568

command argument, 560, 561

command line substitutions, 564, 565, 566

commands

pack, 551

readdir, 572

system, 563, 564

uptime, 561

constants, 570

disadvantages, 542

disk usage monitor, 569, 570, 572, 573, 574, 575, 576

e-mail

addresses, 555, 556

message body, 556, 557

sending, 552, 553, 554, 555, 556, 557

subject, 556, 557

elements

extracting, 550

error checking, 554

extensions

installing, 544, 545

files

opening, 548, 549

substitutions, 566

functions

split, 550

installation, 543

introduction, 539

modules

loading external, 555

overview, 540, 541, 542, 543

parsing, 564

pipes, 561, 562

record separators, 555

records

reading, 549

regular expressions, 564

starting, 546, 547

strict, 548

syntax, 554

system load, 558, 559, 560, 561, 562, 563, 564, 565, 566, 568, 569

users

login name display, 547, 548, 549, 550, 551, 552

permissions, 84

directories, 176, 178

files, 175, 176, 178, 278, 279

private, 275

public, 275

Read-only, 275, 276

restricted, 276, 277

Write access, 277

passwd program, 179

setuid, 179

permissions block, 175

Personal desktop configuration, 1

PHP (PHP Hypertext Preprocessor), 599, 600, 601

physical security, 410, 411

physical threats, security, 409

PIM (personal information management), 144. See

pipes

Perl, 561, 562

plug-ins

Mozilla and, 114

policies

SELinux, 480

POP (Post Office Protocol), 388

POP3

starting

Sendmail and, 395

port forwarding, 99

PPP (Point-to-Point Protocol)

daemon (pppd), 462

PPTP (Point-to-Point Tunneling Protocol), 458

Presentation software icon, 45

presentations. See OpenImpress

primary groups, 222

print jobs

creating at command line, 374

Print manager icon, 45

print queues, 371

print servers. See also CUPs

printer installation, 371, 372, 373

setup, 370, 371, 372, 373, 374, 375

printers

configuration, 373

cupsd printer daemon, start/stop, 373

print jobs created at command line, 374

printing from applications, 374

installation, 371, 372, 373

printing

from applications, 374

private files, 275

private key encryption, 419

expiry date, 421

private keys

creating

Web server certificates, 356

passphrase, 419

probing, hacking, 408

process management

shell commands, 219, 220, 221

processes

child processes, 78

parent processes, 78

running

controlling, 81

viewing, 79, 80

scheduling, 240, 241

task management, 238, 239

programs

built-in, shell, 214

external, shell, 214

finding, 55

invoking

path and, 54, 55

properties

user accounts, 258, 259, 260

protocols, 338

L2TP (Layer 2 Tunneling Protocol), 458

mail servers, 388

PPTP (Point-to-Point Tunneling Protocol), 458

TCP/IP connections, 452

ps command, 213

public files, 275

public key cryptography, 419, 420, 421, 422, 423, 424

public key encryption

exipry date, 421

importing keys, 426

publishing key, 424, 425

signatures on keys, 427

trust relationships, 426, 427, 428

publishing public key, 424, 425

Python

application development, 598