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relationship to NIS 530–531

vendor support 521

nisd 830

NLOGS syslog parameter 219

nmap 663–665, 808

nmbd 770

nmh 538

nobody login 44, 491, 531

nocanonify 579

NOCOL 648

nodename file 307

/etc/notrouter file 309

npasswd 809

NS records 440–441, 455

NSFNET 262

nslookup 407, 461, 475–478, 809

nss_ldap 534

nsswitch.conf file 305, 307–308, 523–524

NTP protocol 834

NTRIGUE 776

nullclient 585–586

nvi 809

O

O’Reilly books 817

Oetiker, Tobi 647, 806

office wiring 386

off-site backups 167

on 832

one-time passwords 674

on-site maintenance 745

The Open Group 818

open relaying 597

Openlaw 789

OpenLDAP 534

openlog 220–221

openprom 228

OpenSSH 672

OpenView 643

OPIE 674

Orb disks 171, 175

ORBS (Open Relay Behavior-modification System) 597

OSPF 347, 350–351, 360–362, 368

designated routers 361

router priority 362

routing areas 360–361

OSTYPE macro 574–575

Ousterhout, John 519

Outlook Express 538

Owens, Keith 274

ownership

of files 37–38, 74

of processes 38–39

P

pac 715

pacadm 109

pacct file 208

packet filtering see firewalls

packet sniffers 385, 636–639, 642

PADL Software 534

page clusters 760

pagedaemon 14, 827

pageout 827

paging 136, 760–761

Painter, Mark 394

PAM (pluggable authentication modules) 656

pam_ldap 534

parallel ports 116–117

partitions

alternate root 240

design hints 166

entire disk 130

FreeBSD 153–156

HP-UX 143–148

load balancing 756, 764

overlapping 130

overview 130–131

purpose 130

Red Hat 148–153

root partition 64, 131, 240

size 167

Solaris 140–143

swap 131, 136

/etc/passwd file 38, 76–83, 86, 91–92, 514, 529

and mail aliases 551

security 655–659

passwd command 38–39, 78, 83, 86, 208, 215

passwords 78–79, 655–656

aging 657

guessing 666

passwords continued

length 656

one-time 674

selection rules 39–40, 86–87, 655–656

shadow 78–79, 82–84, 656–657

patents 813–814

PC hardware 776

BIOSes 17, 124–125

boot device priority 17

bootstrapping 16–22

device drivers 246

general tips 776–777

multibooting 20–22

vs. workstations 17

PC systems see Windows

PCL (printer PDL) 705

pclbanner 738

PDLs (page description languages) 704

Pendry, Jan-Simon 505

performance 754–768

CPU 757–759

disk 757–765

factors affecting 756–757

improving 755–756

load averages 759

memory 757, 761–763

troubleshooting 766–768

Perl 2, 10, 808

permanent virtual circuits 382

permissions 69–75

PGP 613, 671–672, 809

PGP (Pretty Good Privacy) 613

phone jacks 113

phones file 114–115, 577

pico 809

PIDs (process IDs) 46

PIM protocol 351

pine 538, 809

ping 627–629

piracy 792

PIX (Cisco product) 296, 320

pkgadd 248, 314, 808

pkginfo 314

/platform directory 227

pluggable authentication modules 656

pmadm 109

policy agreements 89, 779–785

Polk, Jeff 793

Pomes, Paul 563

POP 537, 540, 546, 549–550, 831

popper 831

pornography 698, 788, 791, 803

port scanning 663–665

portmap 492–493, 824–827

/usr/ports directory 690, 808

POSIX 818

Postel, Jon 263

Postfix 537, 618–623

architecture 618

configuration 619–621

example configuration 622–623

security 619

spam control 621–622

postmaster alias 551

PostScript 705–706

Powell, Patrick 735

power management 751

PPID (Parent Process ID) 46

PPP 291–295

address assignment 294

FreeBSD 337–340

HP-UX 321–322

link control 291–293

network control protocols 292

performance 292–293

Red Hat 329

routing 294

security 294

Solaris 209, 314–315

ppp 337–338

ppp.conf file 337–338

ppp.deny file 338

pppd 321, 338–339

pppstats 340

Predictive Networks 790

/var/preserve directory 162

Preston, W. Curtis 203

Pretty Good Privacy 613, 671–672, 809

printcap file 514, 707–709, 712–719

for LPRng 738

format and syntax 712–713

user-defined extensions 718

variables 713–718

variables for serial devices 717–718

PRINTER environment variable 707

.printers file 729

printers.conf file 722, 729

printing 703–743

access control 709

accounting 715, 738–739, 741

adding