INDEX
Numbers
2.4GHz cordless telephone, 989
2.4GHz spectrum networks. See 802.11a networks
3Com, 286
5-4-3 rule, 204
5GHz spectrum networks. See 802.11a networks
10/100 Ethernet adapters, 1137
10/100 Ethernet switches, 296
10BASE-2 networks, 198, 964–970
10BASE-5 networks, 198
10BASE-36 networks, 198
10BASE-FL networks, 199
10BASE-T networks, 198
802.11a versus 802.11b, 303
10BASE-2 networks, upgrading from, 964–970
upgrading from, 48
11Mbps. See 802.11b networks
25-pair jumper cables, 84
64-bit Windows XP, 1048
100BASE-T networks, 213–214
100BASE-TX networks, 199
802.2 LLC ethernet frames, 211–213
802.3 ethernet frames, 210
802.3 snap feature, 212
802.11-based networks. See also wireless networks
ad hoc networks, 288
channels, 304–305
nearby network channels, 318
overview, 292–293
client/server networks, 288
comparisons of, 302–307, 311, 329
components of, 292
dual-mode network adapters, 306
dual-mode wireless networks, 328–329
MAC layer, 289–290
operation rates, 296
Physical layer (PHY), 288
public places, 305–306
virtual private networks, 297
wireless, 298
802.11a networks
bandwidth advantages, 303–304
channels, 304–305
interference from devices, 302–303
OFDM, 304
proprietary extensions, 305
security, 306
versus 802.11b/g, 306–307, 311
802.11b networks
APs, 294–296
channels, 292–293
decline of, 292
distance limitations, 296
DSSS (spread-spectrum), 304
firewalls, 296–297
proprietary extensions, 293–294
versus 802.11g, 311
Wi-Fi Alliance and, 299–300
802.11g networks
802.11a/b, comparing, 311
cost, 310
notebook support, 1137
overview, 310–311
popularity, 193
proprietary extensions, 327–328
range improvement technologies, 328
wireless network adapter installation
overview, 321
Service Pack 2, 324–326
setup CDs, 321–324
Wireless-G broadband router installation
LAN connections, 313
PCs, configuring, 312–314, 321
properties sheet tabs, 319–320
saving configurations, 317
wireless access ports, configuring, 315–319
1000BASE-CX networks, 199
1000BASE-LX networks, 199
1000BASE-SX networks, 199
1000BASE-T networks, 199
A
AAL (ATM Adaption Layer), 248
AC (alternating current), 78
AC/DC converters, 949
Academic Source Release (ASR), 867
Accelerated Graphics Port (AGP), 104
acceptable use statements, 811–813
access
Anonymous Access, 791
Arbitrated Loops, 175
CSMA/CD, 192
databases, 1119–1121
dial-in, 679
LDAP, 1118–1122
Linux, 744–748
methods, 192
NBMA, 382
networks, controlling
auditing, 819
identifying users, 817–822
resource protections, 818
R-utilities, 425–426
share-level permissions, 722–724
shared network media, 273
SMB, 599–601
Unix, 744–748
users
limiting time, 677–678
permissions, 722–730
VPN, 894–895
Web-based printers folders, 789–792
Windows NT
adding users to groups, 676
assigning group memberships, 675
built-in user groups, 673
creating user groups, 674
groups, 672
managing user accounts, 675–681
workstations, 678
Access Code field, 339
Access Control Lists (ACLs), 155, 666
access control mechanisms (network security), 817
auditing, 819
resource protections, 818
users, identifying, 817–822
access points. See APs
Account Information dialog box, 678–680
Account Policy dialog box, 681
accounts
Account Information dialog box, 678–680
computers, managing, 694–696
generic, 684
interdomain trust relationships, 666–668
lockouts, 821
time, limiting, 677–678
tracking, 684
users
complete trust models, 671–672
searching, 581–582
Unix, 707–708
Windows NT, 666
workstations, 678
ACK (acknowledgement) packets, 289
ACL (Asynchronous Connection-Less), 339
ACLs (Access Control Lists), 155, 666
ACPI (Advanced Configuration and Power Interface), 60–62, 111
ACR (attenuation to cross talk ratio), 77
acronyms, 1119–1120
ACT (Access Control Commands), 407
Action menu
Event Viewer, 843–844
WINS, 536–538
ADSI, 571
DC, 572–573
directory-aware application programming, 572
member servers, 572–573
application, 559
attributes, 562–563
DDNS, 567–568
directory services, 557
DNS, 568
domain models, 565
global catalog, 571
groups, 738–740
managing, 566
migration
BDCs, upgrading, 1061
implementing, 1055
joining trees, 1057
master domain model, 1057–1060
PDCs, upgrading, 1056–1057
naming, 564
searching, 581–585
standard, 563–564
partitioning, 565–566
replicating, 570
services, 558–559
sites, 569
standards, 559–561
trees, 564–567
Windows 2003 Server, 585–592
Active Directory Computers and Users snap-in, 702
Active Directory Migration Tool (ADMT), 585
Active Directory Service Interface (ADSI), 557, 571–573
Active Directory Users and Computers command (Start menu), 687
active mode, 338
active monitor, 1097
active open connections, 388
ActiveState ActivePerl 5.8, 1043
ad hoc wireless networks, 18, 298
ad-hoc mode (wireless network adapters), 322
adapters
cards, 968–970
installing, 321–326
networks, troubleshooting, 219
PCMCIA, 107
Add Button dialog box, 792
Add Printer dialog box, 797
Add Server dialog box, 536
Add Standalone Snap-in dialog box, 574
Add Trusted Domains dialog box, 668
Add Users and Groups dialog box, 674, 834–835
Add/Remove Snap-in dialog box, 574
adding
Active Directory schema, 574–576
computers, 693–694
labels, 644–645
links, DFS roots, 624–625
objects, databases, 1123
printers
Windows 2000, 781–793
Windows NT 4.0, 775–781
servers, 535
stacks, 651
users, 676
Address field, 340
Address Resolution Protocol (ARP), 363, 380–385
addresses, 630–633
APIPA, 514–515
base I/O ports, 118
broadcast, 370
IP, 365–371
ARP, 380–385
cable modems, 271–273
Class A, 372
Class B, 373
Class C, 373
Class D, 373–374
Class E, 373–374
datagram headers, 366–369
filtering, 874
proxy ARP, 385
RARP, 385
spoofing, 864
subnetting, 375–377
supernetting, 378–380
mulitcast, 370
Option classes, 506
protocols, 525
reserving, 504
reusing, 495
routers, 149
scope
configuring, 504–507
creating, 500–504
spaces, 978–979
unicast, 370
-adduser command (Unix), 707–708
administration
centralized management, 1054–1055
complete trust models, 671–672
decentralized management, 1054–1055
directories, 1052–1053
domains
controllers, 669
interdomain trust relationships, 666–667
models, 669–672
replication between controllers, 680–681
trust relationships, creating, 667–668
Windows NT, 665–666
groups, 672
adding users, 676
assigning group memberships, 675
built-in user groups, 673
creating user groups, 674
IEEE 802.1, 191
installation, 100
printers
Windows 2000, 785–793
rights, delegating, 1054
routers
delegating LAN responsibilities, 155–156
LAN sizes, 151–154
switches, 135
tools, installing, 574
users
accounts, 675–681
Web-based printers folders, 789–792
WINS, 529
Action menu, 536–538
netsh commands, 540–541
Windows 2000, 535–538
Windows 2003 Server, 539
wiring, 101
ADMT (Active Directory Migration Tool), 585
Adobe Reader, 320
ADSI (Active Directory Service Interfaces), 557, 571–573
ADSL (Asynchronous Digital Subscriber Line), 262–266
Advanced Audio/Video Remote Control Profile (AVRCP), 345
Advanced Configuration and Power Interface (ACPI), 60–62, 111
Advanced Power Management (APM), 111
aero domain, 545
AES (Advanced Encryption Standard), 318, 909
agents
proxy, 943
AGP (Accelerated Graphics Port), 104
AH (Authentication Header), 896–898
AirSnort, 350
alerts (Unix), 771
algorithms
backoff, 202
congestion avoidance, 392
Dijkstra, 643
OSPF, 642–643
SHA, 896
Truncated Binary Exponential Backoff Algorithm, 202
allowing dial-in access, 679
ALOHA project, 196
ALOHAnet, 8
alternate migration plans, 1055
alternation current (AC), 78
ALWIL software, 1112
AMA (Open Mobile Alliance), 1112
American National Standards Institute (ANSI), 576, 909
American Power Conversion Corp (APC), 60
American Standard Code for Information Interchange . See ASCII
analog modems, 262
analyzers, 932–933
baselines, 933–934
networks, 223
printing statistics, 767
protocols
decoding, 934
filtering, 934
hardware, 939–940
software, 934–939
Anixter, 1109
Anonymous Access, 791
ANSI (American National Standards Institute), 576, 909
Antheil, George, 287
anti-virus
applications, 867
tips, 958–959
Anycasts, 370
APC (American Power Conversion Corp), 60
API (application programming interface), 396
APIPA (Automatic Private IP Addressing), 490, 514–515
APM (Advanced Power Management), 111
Application Compatibility Toolkit, 1063–1064
application gateways, 113, 533, 879–881, 885
Application layer, 1085
application programming interface (API), 396
application-specific integrated chips (ASICS), 134, 643
applications, 1032–1033. See also utilities
10BASE-2 networks, 964–968
Active Directory, 559
ADSI, 571–573
assessing, 32
backing up, 1132–1133
Cisco, 1109
competing products, 52
corporate standards, 50
deleting, 812
drivers, 114–116
firewalls, 890–891
FTP, 404–405
commands, 407–408
data transfers, 406–407
ports/processes, 405
Red Hat Linux, 414–417
replies, 409–411
TFTP, 417–419
Windows command-line clients, 411–414
gateways, 882
HP, 1110
IBM, 1109
IP addresses, 397
Juniper Networks, Inc., 1110
legacy, 47
manufacturers, 1111
Microsoft, 1110
NetWare and Unix/Linux integration, 1074, 1077
network sniffers, 864
office
CrossOver Office, 1076
Microsoft Office Student and Teacher Edition 2003, 1131
OpenOffice.org, 1075–1077, 1131
selecting, 1132
StarOffice, 1075–1077
StarOffice 8 Suite, 1131
WordPerfect Office X3, 1131
print servers, 803–805
proxy, 882–883
Red Hat, 1111
Samba.org, 1111
security, 853
TCP/IP, 433
Telnet, 419
commands, 420–424
NVT, 419–420
Tripwire, 867–868
Trojan horses, 855
upgrading, 1047–1049
vertical-market, 1130–1134
virus-checking, 867
viruses, 855–857
applying
NAS, 170
SANs, 170
Start/Search method, 585
switches, 977
Windows
2000/2003 Event Viewer, 843–844
NT 4.0 Event Viewer, 835–836
WINS, 529–530
APs (Access Points)
10/100 Ethernet switches, 296
802.11b networks, 294–296
ad-hoc networks, compared, 312
adding to wired networks, 284
alternatives, 292
bandwidth in the real world, 285–286
bottlenecks, diminishing, 303
CDs, configuring, 319
DHCP servers, 295
dual-mode Access Points, 298
firewalls, 296–297
limitations, 294
locations, choosing, 988–989
Network Address Translation, 295–296
rogue Access Points, 355
small wireless networks, creating, 284
types, 286
virtual private networks, 297
Wireless-G broadband router installation. See Wireless-G broadband router installation
wireless routers, compared, 294–295
architecture
ATN, 247–249
IEEE 802, 189–191
IEEE 802.1, 191
IEEE 802.2, 191
IEEE 802.3, 192
IEEE 802.4, 192
IEEE 802.5, 192
IEEE 802.7, 193
IEEE 802.10, 193
IEEE 802.11, 193
SCSI, 164
ARCnet, 33–34
ARP (Address Resolution Protocol), 363, 380–385
arp command, 472–473
ARPANET, 8
arranging domains, 1050–1051
Artisoft LANtastic, 9
ASCII (American Standard Code for Information Interchange), 230
Telnet NVT, 423
transfers, 407
ASICS (application-specific integrated chips), 134, 643
ASR (Academic Source Release), 867
Asset Management component, 110
assigning
group memberships, 675
users, 1055
asymmetric encryption, 648–651
Asynchronous Connection-Less (ACL), 339
Asynchronous Digital Subscriber Line (ADSL), 262–266
Atheros Super G, 327
ATM (Asynchronous Transfer Mode), 156, 244–245
architecture, 247–249
connections, 246–247
Frame Relay, 645
frames, 245–246
IP over, 250
LAN emulation, 249
service categories, 250–251
ATM Adaption Layer (AAL), 248
ATRN command, 440
attacks
denial of service, 824, 858–859, 972
digital certificates, 650–651
forged email, 862
ICMP redirects, 860
Ping of Death, 861–862
WANs
back doors, 863
forged email, 862
passwords, 862–863
preventing, 853–854
Trojan horses, 855
types of attacks, 857–862
viruses, 855–857
fiber-optic cables, 91
testing, 928
attenuation to cross talk ratio (ACR), 77
attributes
Active Directory, 562–563
property set, 1054
selected, 571
User Account object, 690
Audio/Video Remote Control Profile, 344
Audit Policy dialog box, 833
auditing, 819
enabling, 838–841
Linux, 829–832
NetWare 6, 849
networks, 926
reports, 848
Unix, 829–832
Windows
2000/2003, 836–841
NT 4.0, 832–835
XP Professional, 845–846
Auditing Entry dialog box, 841
AUTH command, 440
authenticated commands, 448–449
authentication, 896
basic authentication, 791
digest, 791
domain controllers, 669, 680–681
encrypted, 818
integrated Windows, 791
LDAP, 1122–1123
pass-through, 667
Telnet, 423–424
Unix/Linux compared to NetWare, 1073–1074
Authentication Header (AH), 896
authorization
delegating for network security, 823–824
DHCP, 497–499
R-utilities, 425–426
share-level permissions, 722–724
user-level permissions, 722–730
AUTHORIZATION state, 444
Automatic Private IP Addressing (APIPA), 490
automount command, 619–620
autonomous systems (RIP), 636–638
router updates, 639–640
scalability, 641–642
version 2, 640–641
autosensing, 109
AVCP (Audio/Video Remote Control Profile), 344
AVRCP (Advanced Audio/Video Remote Control Profile), 345
B
B-ISDN/ATM model, 247–249
back doors, 863
backbones
cabling systems, 75–76
collapsed, 130–132
ethernets, 208
explicit tagging, 143
Gigabit Ethernets, 971
implementing, 23–24
background processes (services), 822–823
backing-out, 43
backoff algorithm, 202
BackOffice, 934
Backup Domain Controller (BDC), 669, 1061
backup windows, 65
backups, 62–63
applications, 1132–1133
data files, 1137
domain controllers, 683
external hard disks, 65
full system backups, 1137
media, 63–64
off-site storage, 66–67
rewritable (RW) discs, 65
rotation schedules, 65–66
SOHO, 1136–1137
tapes, 66
Backward Explicit Congestion Notification (BECN), 253
badcalls, 622
badlens, 622
802.11a network advantages, 303–304
APs, 285–286
cable modems, 259
DSL, comparing, 259–261
PSTN, 261–262
DSL, 259
cable, comparing, 259–261
PSTN, 261–262
frame relay, 255
leased lines, 240–242
Fractional T1, 243
T-carrier system, 242–244
limitations, 976
NAS, 168–169
banner pages, 760
Banyan Vines, 9
barcoding backup tapes, 66
BASE (baseband signaling), 197
base I/O ports, 118
baselines, establishing, 933–934, 946
basic authentication, 791
Basic Imaging Profile (BIP), 345
Basic Printing Profile (BPP), 345
Basic Rate Interface (BRI), 240
Basic Service Set (BSS), 284. See also ad hoc networks
bastion hosts, 882
batteries, 61
BDCs (Backup Domain Controllers), 669, 1061
BECN (Backward Explicit Congestion Notification), 253
Belkin APs, 286
Berkeley System Distribution (BSD), 751, 758–767
BERT (Bit Rate Error Testers), 244, 929–930
BIND (Berkeley Internet Name Domain), 549
binding servers, 1122–1123
BIP (Basic Imaging Profile), 345
biz domain, 545
BlackBerries, 349. See also PDAs
block ciphers, 910
block mode, 406–407
blocking traffic, 873. See also packet filters
Bluefin initiative, 183
Bluetooth
ACL, 339
connections, 342
device modes, 338
packets, 339–340
piconets, 335–337
Cordless Telephony, 342–343
Dial-Up Networking, 343
Generic Access, 341–342
Headset, 343
Intercom, 342–343
Serial Port, 343
Service Discovery Application, 342
protocols, 345
scatternets, 335–338
SCO, 339
special interest group, 333
Bluetooth Extended Service Discovery Profile (ESDP), 345
BNC connectors, 968
BNC-style T-connectors, 13
Boggs, David, 196
Boolean logic, 375
boot-time command, 772
booting fstab files, 615–616
BOOTP (Bootstrap protocol), 364, 482
DHCP, 489–491
client/server exchanges, 493–496
customizing, 491–493
fields, 483–484
operating systems, downloading, 488
options fields, 485–488
packet formats, 483–484
relay agents, 508–510
request/reply mechanisms, 484–485
support, 507
Unix, 1030–1032
border routers, 642
bottlenecks, 303
BPP (Basic Printing Profile), 345
BRI (Basic Rate Interface), 240
10BASE-2 networks, 969–970
Ethernet switches, comparing, 126
IEEE 802.1, 191
topologies, 22
upgrading to routers and switches, 974–978, 981–983
addressing issues, 978–979
management issues, 979
network protocol issues, 978
broadband, 193, 259. See also cable modems
broadcast addresses, 370
broadcast domains
definition, 21
limiting, 127
broadcast storms, 222–223
Broadcom Afterburner, 327
BSD (Berkeley System Distribution), 751, 758–767
BSS (Basic Service Set). See also ad hoc networks
budgeting network upgrades, 43
Buffalo APs, 286
burst pages, 760
buses
collisions, 202
mastering, 106
CardBus, 108
ISA, 116
PCI, 105–107
PCMCIA, 107
selecting, 104–108
C
-c command, 772
CA (certificate authority), 912–913
CA (collision avoidance), 13, 202
DOCSIS, 274–275
DSL, comparing, 259–261
first-generation systems, 273
IP addresses, 271–273
PSTN, 261–262
xDSL, 273–274
cables
10BASE-2 networks, 966–967
BERT, 929–930
bus topologies, 12
characteristic impedance, 87
coaxial, 85–86
connectors, 968–969
connections, 970
attenuation, 91
electromagnetic immunity, 88
light transmission, 90–91
operation, 89
safety, 89
security, 89
size and weight, 89
total internal reflection, 91
handheld cable checkers, 929
impedance, 931
marking, 83–84
NIC, 109–110
open office, 99
pulse width, 931
segment length, 203
STP, 214
structured wiring, 74–77
TDR, 930–931
terminations, 92
crimping, 92
fiber optic, 95–97
IDC, 92
modular jacks/plugs, 92
outlet configuration, 93–94
terminologies, 77
ACR, 77
characteristic impedance, 78
cross-talk, 78–79
dialectic, 79
electromagnetic field, 79
EMI, 79
full-duplex communication, 80
half-duplex communication, 80
impedance, 80
leakage, 80
nominal velocity of propagation, 80
Power SUM, 80
radio frequencies, 80
shields, 81
testing, 928–929
troubleshooting SOHO networks, 956–957
types, 81–83
velocity, 931–932
CAC (Channel Access Code), 339
caching name servers, 546–549
Call Back options, 679
campus networks, 24–25
cancel command, 768–770
CAP (Carrierless Amplitude Phase), 263
capacity
evaluating, 46–47
NAS, 168–169
capture filters, 937–938
capture triggers, 938
CardBus, 108
cards
network adapter, 968
NICs. See NICs
PC, 108
PCMCIA, 107
SCSI
Arbitrated Loops, 172–175
capacity, 168–169
connections, 165
fabric switched topology, 176–178
Fibre Channel, 170–172
IP, 180–181
mixed topologies, 178–179
network appliances, 167
protocols, 168
SANs, 166–170
WOL network adapter, 111
Carrier Sense Multiple Access/Collision Avoidance. See CSMA/CA
Carrier Sense Multiple Access/Collision Detection (CSMA/CD), 127, 197–202
Carrierless Amplitude Phase (CAP), 263
catalogs, 571. See also global catalogs
Category 5E cables, 82
Category 6 cables, 44
Category 7 UTP cables, 82–83
CBT (computer-based training), 54
CD (collision detection), 13
CD-Rs, 63
Cell Loss Priority (CLP), 246
centralizing wiring
management, 1054–1055
star topologies, 14
switches, 21
CERT/CC (CERT Coordination Center), 1113
certificate authority (CA), 912–913
certificates (digital), 649–651, 912–913
Channel Access Code (CAC), 339
channel service unit (CSU), 241
channels
802.11a networks, 304–305
802.11b/g networks, 292–293
nearby network channels, determining, 318
characteristic impedance, 78, 87
chassis switches, 135
checklists, 37
checksum
headers, 368
TCP, 386
UDP, 396
chgrp command, 759
chokepoints, 149
chown command, 747–748
CIDR (Classless Inter-Domain Routing), 378–380, 640
CIFS (Common Internet File System), 168, 525, 607–608
ciphers, 910
CIR (committed information rate), 252
circuit breakers, 61
Cisco
APs, 286
routers, 158–161
Class A IP addresses, 372
Class B IP addresses, 373
Class C IP addresses, 373
Class D IP addresses, 373–374
Class E IP addresses, 373–374
class I hubs, 214
class II hubs, 214
classes
IP addresses, 370–374
options, 369
Unix, 771
classical proxy servers, 879
Classless Inter-Domain Routing (CIDR), 378–380, 640
clear to send (CTS), 289
clear-text passwords, 818
Client Services for NetWare (CSNW), 995–996
clients
addresses, 504
BOOTP, 482
DHCP, 489–493
downloading operating systems, 488
options fields, 485–488
packet formats, 483–484
relay agents, 508–510
request/reply mechanisms, 484–485
server exchanges (DHCP), 493–496
support, 507
commands, 446
DHCP
dynamic updates, 512–513
Red Hat Linux, 517
DNS, 550–552
h-node, 533
identifying, 32
names, 530–532
NAS, 165–167
NetWare, 1001–1002
NIS, 718
p-node, 533
POP3, 443–445
Samba, 607
SOHO, 1068–1069
Telnet, 1042–1043
Telnetxxx, 1020–1025
universal commands, 447
Windows
2000 Professional Client, 236–238
FTP command-line, 411–414
WINS, 530
closing
files, 599
network upgrades, 54
Unix printers, 772
CLP (Cell Loss Priority), 246
CNAME record, 549
coaxial based networks, 198
coaxial cables, 85–86
bus topologies, 12
upgrading from, 109
codes
FTP replies, 409–411
ICMP messages, 400
CodeWeavers, 1076–1077
coding wiring, 83–84
collapsed backbones, 130–132
collision avoidance (CA), 13, 202
collision detection (CD), 13
collisions
definition, 288
detecting, 217
domains, 128–129
ethernet, 199–202
backoff algorithm, 202
buses, hubs, and switches, 202
troubleshooting, 217–223
rates, 217
reducing, 219
COM (Component Object Model), 571
Command/Response (C/R), 252
commands
ACT, 407
-adduser (Unix), 707–708
arp, 472–473
ATRN, 440
AUTH, 440
automount, 619–620
boot-time, 772
-c, 772
cancel, 768–770
clients, 446
DELE, 444
ditroff, 760
domainname (NIS), 715–716
DON’T, 422
EHLO, 439
EXPN, 440
exportfs, 617–618
FSC, 407
fsstat -s, 622
FTP, 407–408
GET, 413
HASH, 413
HELO, 439
HELP, 440
hostname, 452–453
IMAP4, 448–449
Korn Shell, 1038–1040
lastcomm, 832
LIST, 444
lp, 768–770
lpadmin, 770–773
lpc, 764–766
lpd, 761
lpg, 764–766
lprm, 764–766
lpsched, 770–773
lpshut, 770–773
lpstat, 768–770
lptest, 759
ls, 745–746
MAIL, 440–442
makdev, 762
mkdir, 759
mount, 614–616
NBTSTAT, 532
NET, 601
NET NET SHARE, 602–603
NET NET STATISTICS, 604–607
NET NET USE, 603–604
NET NET VIEW, 603–604
netsh, 540–541
nfsstat, 622
nslookup, 476–477
pac, 767
pr, 760
-r, 772
RCPT, 440–442
READ, 599
REST, 444
restart, 766
RETR, 444
rmuser (Unix), 707
route, 926
RSET, 440
ruptime, 430–431
rwho, 430
SAML, 440
SEND, 440
set, 477
SIZE, 440
SMTP, 439–441
SOML, 440
Start menu
Active Directory Users and Computers, 687
Computer Management, 1020
Internet Services Manager, 1028
STAT, 444
status, 766
TCP/IP, 477–478
tcpdump, 473–475
Telnet, 420–423
tlntadmn, 1025
TPC, 407
troff, 760
TURN, 440
universal, 447
useradd (Unix), 708
VRFY, 440
-w, 772
WILL, 421
WinDump, 475–476
WON’T, 422
WRITE, 599
yp, 718
ypinit (NIS), 716–717
ypserve (NIS), 716–717
ypxfrd (NIS), 716–717
comments (Unix), 771
committed information rate (CIR), 252
Common Internet File System (CIFS), 168, 525, 607–608
common outlets, configuring, 93–94
Common Unix Printing System (CUPS), 773
communication
devices, 201
LAN, 208
troubleshooting, 219–223
Communications of the ACM, 196
competing products, evaluating, 52
compiling reports, 54
complete trust models, 671–672
Component Object Model (COM), 571
components
Asset Management, 110
design, 36–40
mapping, 48–49
Power Management, 110
Remote Wake-Up component, 111–113
RPC, 610–611
Universal Network Boot, 110
compressed mode, 406
computer management, 693–696
Computer Management command (Start menu), 1020
computer-based training (CBT), 54
computers
accounts, managing, 694–696
domains, adding, 693–694
privacy, 908
conditioning, 243
configuring
accounts, 666
ACPI, 60–62
BOOTP, 482
client/server exchanges (DHCP), 493–496
DHCP, 489–493
downloading operating systems, 488
options fields, 485–488
packet formats, 483–484
request/reply mechanisms, 484–485
collapsed backbones, 130–132
DHCP, 922
DNS
clients, 550–552
Unix, 549–550
domains, 715–716
dynamic updates, 511–513
files, 618–619
firewalls, 424
/etc/printcap configuration file, 761–764
GNSW, 998–1000
groups, 674–676
host systems, 452–457
logical network design
components, 36–39
maintaining, 40
physical networks, 39
planning, 31–34
MMC, 536
modular plug pair, 93
networks, 124
NFS, 613
NIC
Linux, 119–121
troubleshooting, 123–124
NIS slaves, 717–718
outlets, 93–94
packet filters, 873
passwords, 681–682
ports, 140
printers, 785–793
pulse width, 931
servers, 534
SMB sessions, 598–599
spool directories, 759
switches, 981–983
syslog.conf file, 829–832
TCP, 389–390
TCP/IP, 860
trust relationships, 667–668
Unix
printers, 758–767
SVR4, 768–773
user accounts, 678–680
Windows
2000 Professional Client, 236–238
2000/2003, 836–841
NT 4.0, 832–835
XP Professional, 795–799
WINS, 530
Configure DNS dialog box, 1059
Configure Gateway dialog box, 999
Configure-Request packet, 235
congestion
avoidance algorithm, 392–393
networks, 255
troubleshooting, 253–254
windows, 393
connections
10BASE-2 networks, 964–970
ACL, 339
BERT, 929–930
bus topologies, 204–205
comparing, 259–261
first-generation systems, 273
IP addresses to, 271–273
PSTN, 261–262
xDSL, 273–274
cabling, 92
coaxial, 85–86
crimping, 92
IDC, 92
modular jacks/plugs, 92
outlet configuration, 93–94
testing, 929
characteristic impedance, 87
creating, 342
dial-up, 228–229
configuring Windows 2000 Professional Client, 236–238
optimizing, 238
PPP, 229–236
SLIP, 229–231
DSL, 259
CAP, 263
comparing cable modems, 259–261
DMT, 264–267
DSLM, 263
PSTN, 261–262
xDSL, 262–263
attenuation, 91
electromagnetic immunity, 88
light transmission, 90–91
operation, 89
safety, 89
security, 89
size and weight, 89
total internal reflection, 91
handheld cable checkers, 929
impedance, 931
IP, 365
IPv6, 654–655
LAN
bridging topologies, 22
building, 23–24
bus topologies, 12–13
layer-3 switching, 23
mesh topologies, 17
ring topologies, 15–17
routing topologies, 22
shared/nonshared topologies, 21–22
star topologies, 13–14
topologies, 12
VLANs, 23
LDAP, 1122–1123
leased lines, 240–242
ATN, 244–251
Fractional T1, 243
frame relay, 251–256
LMI, 254
preventing network congestion, 253–254
SVC, 254–255
T-carrier system, 242–244
X.25, 251–252
multi-homed systems, 113
NCP, 610
networks
different cables/topologies, 970
segments, 979–983
NVT, 419–420
OSI networking model, 1082–1084
ping command, 458–462
pulse width, 931
routers, 156–157
SCO, 339
SCSI, 165
Arbitrated Loops, 172–175
capacity, 168–169
fabric switched topology, 176–178
Fibre Channel, 170–172
IP, 180–181
mixed topologies, 178–179
network appliances, 167
protocols, 168
SANs, 166–170
star topologies, 205–206
structured wiring, 74–77
switch ports, 128
TCP, 386
TCP/IP, 860
TDR, 930–931
testing cables, 928
traceroute command, 462–476
troubleshooting, 457
velocity, 931–932
VLANs
explicit tagging, 141–143
IEEE switch standards, 144–145
implicit tagging, 141
MAC addresses, 142
port-based, 140
protocol rule based, 142–143
purchasing switches, 146
switching, 139
wireless
Physical layer, 1095
spread-spectrum technology, 1102
connectors. See also cables
cable, 968–969
connections, 82
IDCs, 82
NIC, 109–110
SFF, 99
consolidation points, 99
consumer device interference, 302–303
container objects, 563–564
continuous namespace, 564
contracts, evaluating, 47
controllers (domains), 669, 680–681, 1051–1052
Convergence Sublayer (CS), 247
cookies, 485
coop domain, 545
Cordless Telephony profile, 342–343
corporate standards, verifying, 50
costs
firewalls, 889–891
Gigabit Ethernets, 972
maintenance, 47
C/R (Command/Response), 252
CRC (cyclic redundancy check), 133, 220, 366
Create New Schema Class dialog box, 580
Create New User dialog, 710
creating
DFS roots, 623–624
groups, 700–701
topologies, 23–24
users, 686–688
crimping, 92
cross-talk, 78–79
CrossOver Office, 1076
crosstalk, 304. See also interference
CS (Convergence Sublayer), 247
CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance), 199–201
backoff algorithm, 202
MAC layer (802.11 networks), 288–289
CSMA/CD (Carrier Sense Multiple Access with Collision Detection), 127, 197–202
CSNW (Client Services for NetWare), 995–996
CSU (channel service unit), 241
CTS (clear to send), 289
CTS/CTS, 289
CTS/RTS, 289
CUPS (Common Unix Printing System), 773
customizing. See modifying
cut-through switches, 133, 1090
cyclic redundancy check (CRC), 133, 220, 366
D
DAC (Device Access Code), 339
daemons, 405
DHCP, 517–518
network security, 822–823
NFS. See NFS
rpcbind, 610
syslog, 150
ypserve (NIS), 715
daisy-chains, 204. See also ethernets
DAP (Directory Access Protocol), 560
Data Encryption Standard (DES), 909
data files, backing up, 1137
data formatting (IMAP4), 447
Data Link Connection Identifier (DLCI), 252–253
Data Link Control (DLC), 750–752
Data Link layer, 1083
Data Over Cable Service Interface Specification (DOCSIS), 274–275
data service unit (DSU), 241
Data Terminal (DT), 343
data terminal equipment (DTE), 241, 1091
data transfers, 406–407
databases
Active Directory. See Active Directory
comparing, 1123–1124
consistency, 537
LSDB, 642–643
modifying, 1123
NIS, 1043–1044
restoring, 538
SAM, 665–666
scavenging, 536
searching, 1123
security, 666–668
X.500, 1119–1121
datagrams, 366–369
db (decibels), 77
DC (domain component), 560
DC (domain controller), 572–573
DCF (Distributed Coordination Function), 289
DDNS (Dynamic DNS)
implementing, 551–552
Active Directory, 567–568
DE (Discard Eligibility), 253–254
-debug parameter, 772
decentralized management, 1054–1055
decibels (db), 77
decoding protocols, 934
DECT (digital enhanced cordless telecommunications), 334
dedicated connections
ATM, 244–245
architecture, 247–249
connections, 246–247
frames, 245–246
LAN emulation, 249
service categories, 250–251
frame relay, 251–253
LMI, 254
preventing network congestion, 253–254
SVC, 254–255
troubleshooting, 255–256
leased lines, 240–242
Fractional T1, 243
T-carrier system, 242–244
X.25, 251–252
Dedicated Inquiry Access Code (DIAC), 339
default passwords, changing, 319
defining goals, 50
DELE command, 444
delegation
administrative rights, 1054
LAN, 155–156
network authority, 824
OU, 1053
deleting
applications, 812
hardware, 812
objects, 1123
printers, 771
demilitarized zone (DMZ), 831, 875
denial of service attacks, 824, 858
Department of Defense (DOD), 361
deploying
bus topologies, 13
network upgrades, 43
upgrades, 53–54
DES (Data Encryption Standard), 909
designs (networks)
campus, 24–25
logical
components, 36–39
maintaining, 40
physical networks, 39
planning, 31–34
multi-tiered, 26–27
Destination Service Access Point (DSAP), 212
destinations
IP addresses, 368
IPv6, 657–658
detecting
collisions, 217
failed logon attempts, 682–683
intrusion, 877
development of master plans, 1055
joining trees, 1057
master domain model, 1057–1060
upgrading
BDCs, 1061
PDCs, 1056–1057
Device Access Code (DAC), 339
devices
Bluetooth. See Bluetooth
BOOTP, 482
client/server exchanges (DHCP), 493–496
DHCP, 489–493
downloading operating systems, 488
options fields, 485–488
packet formats, 483–484
request/reply mechanisms, 484–485
communication, 201
interference, 302–303
modes, 338
NAS, 164–167
networks, 62
printing, 773–775
SANs, 166–170
applying NAS, 170
Arbitrated Loops, 172–175
fabric switched topology, 176–178
Fibre Channel, 170–172
IP, 180–181
mixed topologies, 178–179
DFS (Distributed File System), 623–625
DHCP (Dynamic Host Configuration Protocol), 34, 568, 922
allocation, 489
BOOTP, 489–491
client/server exchanges, 493–496
customizing, 491–493
servers, 1030–1032
addresses, 317
APIPA, 514–515
APs, 295
authorizing, 497–499
BOOTP support, 507
clustering, 510
configuring, 504–507
daemons, 517–518
DNS, 511–513
exclusions/reservations, 513–514
installing, 497
large/routed environments, 510–511
leasing, 491
managing logging, 516–517
MMC Action menu, 499–504
Red Hat Linux, 517
troubleshooting, 515–516
SOHO networks, 951–956
Unix, 1030–1032
WAP/routers, 519–521
DHCPINFORM packet, 496
DIAC (Dedicated Inquiry Access Code), 339
diagnostics
NICs, 123
T-carrier systems, 243–244
Dial-In tab, 696
dial-up connections, 228–229, 679
optimizing, 238
PPP, 229–236
SLIP, 229–231
Windows 2000 Professional Client, 236–238
Dial-Up Networking profile, 343
dialectic, 79
dialects (SMB), 596
Dialing Information dialog box, 679
dialog boxes
Account Information, 678–680
account Policy, 681
Add Button, 792
Add Printer, 797
Add Server, 536
Add Standalone Snap-in, 574
Add Trusted Domains, 668
Add Users and Groups, 674, 834–835
Add/Remove Snap-in, 574
Audit Policy, 833
Auditing Entry, 841
Configure DNS, 1059
Configure Gateway, 999
Create New Schema, 580
Create New User, 710
Dialing Information, 679
FPNW 5.0, 1005
Group Memberships, 676
Initial Reverse Synchronization, 1009
Install File and Print Services for NetWare, 1004
Install From Disk, 1004
Local Area Connection Properties, 1005
Local Area Network (LAN), 881
Logon Hours, 677–678
Logon Workstations, 678
New Local group, 674
New Object-Group, 700
New Object-User, 687
New Printer Detection, 797
New User, 675–676
Proxy Settings, 881
Report System Compatibility, 1067
Select Network Component Type, 1003
Select Network Protocol, 785
Select Network Service, 1004
Select User Computer or Group, 839
Trust Relationships, 668
Trusted Domains, 668
User Environment Profile, 676–677
DIB (Directory Information Base), 1120
Diffie-Helman groups, 896
digest authentication, 791
digital certificates, 649–651, 912–913
digital enhanced cordless telecommunications (DECT), 334
Digital Equipment Corporation, 197
digital signatures, 911
Digital Subscriber Lines (DSLs), 156, 259
CAP, 263
comparing cable modems, 259–261
DMT, 264–267
DSLM, 263
PSTN, 261–262
xDSL, 262–263
Dijkstra algorithm, 643
direct maps, 620
Direct Sequence Spread Spectrum (DSSS) systems, 287–288, 304
directories
Active Directory. See Active Directory
application programming, 572
events, 834
LDAP, 1118–1124
metadirectories, 1125
modeling, 1052–1053
NetWare, 740–741
replicating, 1052
servers, 1124
services, 1118–1121
spool, 759
Directory Access Protocol (DAP), 560
Directory Information Base (DIB), 1120
Directory Information Shadowing Protocol (DISP), 560
Directory Information Tree (DIT), 1120
Directory Operational Binding Management Protocol (DOP), 560
Directory System Agent (DSA), 557
Directory System Protocol (DSP), 560
Directory User Agent (DUA), 1120
disabling
default options, 823
Unix printers, 772
disaster recovery, 68
Discard Eligibility (DE), 253–254
Discrete MultiTone (DMT), 263–267
diskless workstations (BOOTP), 482
client/server exchanges (DHCP), 493–496
DHCP, 489–493
downloading operating systems, 488
options fields, 485–488
packet formats, 483–484
request/reply mechanisms, 484–485
DISP (Directory Information Shadowing Protocol), 560
display filters, 937–938
distance limitations (802.11b networks), 296
distance-vector protocols (RIP), 637–638
router updates, 639–640
scalability, 641–642
version 2, 640–641
distinguished name (DN), 564, 1121
Distributed Coordination Function (DCF), 289
distributed denial-of-service attacks, 858–859, 872
Distributed File System (DFS), 623–625
adding links, 624–625
creating, 623–624
DIT (Directory Information Tree), 1120
ditroff command, 760
DLC (Data Link Control), 750–752
DLCI (Data Link Connection Identifier), 252–253
DM1 packet, 340
DMT (Discrete MultiTone), 263–267
DMZs (demilitarized zones), 831, 875, 957
creating, 884
Port Forwarding/Triggering dialogs, comparing, 320
DN (distinguished name), 564, 1121
DNS (Domain Name Service), 34, 153, 364, 1031–1032, 1051, 1119
Active Directory, 568
clients, configuring, 550–552
DDNS
implementing, 551–552
Active Directory, 567–568
DHCP, 511–513
resource records, 547–549
servers, 546
TCP/IP, 543–552
Unix, 549–550
Windows 2000, 552
WINS, 529
DOCSIS (Data Over Cable Service Interface Specification), 274–275
Document Properties, 777–781, 785–792
installation, 100
testing, 37
tools, 921–922
documents
IEEE 802, 193
Internet Draft, 753
Network Connection Policy, 810–811
networks, 48–49
upgrades, 54
DOD (Department of Defense), 361
Domain Admins user groups, 670
domain component (DC), 560
domain local groups, 697
Domain Name System. See DNS
domainname command (NIS), 715–716
domains
administrative rights, 1054
arranging, 1050–1051
BIND, 549
centralized/decentralized management, 1054–1055
computers, adding, 693–694
controllers, 1051–1052
local domain groups, 672
master domain models, 1057–1060
models, 565
namespaces, 1053
resource, 670
top-level, 545
trees, 564–567
users, creating, 686–688
Windows NT
controllers, 669
models, 669–672
replication between controllers, 680–681
trust relationships, 666–668
workgroups, 665–666
DON’T command, 422
door locks (physical network security), 816
DOP (Directory Operational Binding Management Protocol), 560
down time, preventing, 33
downloading operating systems (BOOTP), 488
downtime, scheduling, 51
drawings (wiring), 101
drivers
software, 114
NDIS, 116
ODI, 115
packet Drivers, 115
Windows NT, selecting, 776
DSA (Directory System Agent), 557
DSAP (Destination Service Access Point), 212
DSL (Digital Subscriber Line), 156, 259
cable modems, comparing, 259–261
CAP, 263
costs, 260
DMT, 264–267
DSLAM, 263
PSTN, 261–262
SDSL service, 263
straight-line distance, 259
troubleshooting, 957
xDSL, 262–263
DSLAM (DSL Access Multiplexer), 261–263
DSP (Directory System Protocol), 560
DSSS (Direct Sequence Spread-Spectrum), 287–288, 304
DSU (data service unit), 241
DT (Data Terminal), 343
DTE (data terminal equipment), 241, 1091
DUA (Directory User Agent), 1120
dual-mode Access Points, 298
dual-mode network adapters, 306
dual-mode wireless networks, 328–329
dual-redundant network controllers, 114
DUMPEL.EXE (Dump Event Log), 778
DVDs, rewritable, 65
Dynamic DNS. See DDNS
Dynamic Host Configuration Protocol. See DHCP
dynamic packet filters, 877
dynamic updates, configuring, 511–513
E
forged, 862
IMAP4, 445–446
client commands, 446
commands, 448–449
data formatting, 447
mailbox naming, 447
states, 447
system flags, 446
universal commands, 447
POP3, 443–445
relays
open, 449
testing, 436–437
SMTP, 436–438
commands, 439–441
extensions, 439
models, 438–440
response codes, 441–442
transactions, 442–443
EA (Extension Bit), 253
EAP-SIM certification, 300
EAP-TLS certification, 300
EAP-TTLS/MSCHAPv2 certification, 300
EBCDIC (Extended Binary-Coded Decimal Interchange Code), 230, 407
ECC (error correction code), 930
effective rights (NetWare), 743
EGP (Exterior Gateway Protocols), 636
egress LSRs, 644
EHLO command, 439
EIA (Electronics Industries Association), 74
electrical barriers, 241
electromagnetic fields, 79
Electronics Industries Association (EIA), 74
EMI (electromagnetic interference), 79
Enable Burst Handling, 538
enabling
Active Directory schema, 576
Encapsulating Security Payload (ESP), 896
encapsulation, 386
L2TP, 900–901
layers, 1083
encryption, 648
authentication, 818
digital certificates, 649–651, 912–913
PGP, 913
privacy, 908
SSL handshakes, 649–650
public key, 910–911
RSA public key, 911–912
single-key, 909–910
symmetric, 909–910
End of File (EOF), 406
End of Record (EOR), 406
end user licensing agreements (EULAs), 1132–1133
end users, surveying, 46. See also users
endpoints, 397
EOF (End of File), 406
EOR (End of Record), 406
error correction code (ECC), 930
errors. See also troubleshooting
BERT, 929–930
ethernets, 220–221
failed login attempts, 682–683
giant frames, 222–223
LDAP, 1122–1123
monitoring, 223
multiple network, 222
escalation procedures (security), 814
ESDP (Bluetooth Extended Service Discovery Profile), 345
ESE (Extensible Storage Engine), 557
ESP (Encapsulating Security Payload), 896–899
establishing
LCP, 234–236
NCP, 236
/etc/groups file (Unix), 706–707
/etc/named.boot file, 549
/etc/passwd file (Unix), 704–706
/etc/passwrd files, 1074
/etc/printcap configuration file, 761–764
ethernet
10 Gigabit Ethernet, 216
adapters, 108
backbones, 208
backoff algorithm, 202
collisions, 199–202
Fast Ethernet, 213–214
frames, 208
802.2 LLC standard, 211–213
802.3 standard, 210
Ethernet II/PARC, 209–210
full-duplex switches, 129–130
overview, 196
security, 976
switches, 126
topologies
bus, 204–205
hybrid LAN, 206
restrictions, 203–204
star, 205–206
troubleshooting, 217–223
types, 197–199
Ethernet II, 209–210
Ethertest LAN Analyzer for Windows, 938
evaluating
competing products, 52
components, 48–49
contracts, 47
networks, 42
upgrade needs, 43–47
even parity, 220
Event Log (Windows NT), 778
Event View (Action menu), 843–844
Event Viewer
failed login attempts, 683
Windows
2000/2003, 843–844
NT 4.0, 835–836
events, 946
AUDITCON tool, 847
audits, configuring, 833–835
directories, 834
files, 834
printers, 835
Windows 2003 servers, 841
Everyone group, 744
exclusions (DHCP), 513–514
exclusive locks, 600
executing. See also applying
Active Directory schema, 576–581
firewalls, 887–889
pilot programs, 52
Start/Search method, 585
WINS, 529–530
executive overviews, 36
existing trees, joining, 1057
expanding LANs, 974–977
Expert Observer, 938
expirations
passwords, 821
user accounts, 678–680
explicit tagging, 141–143
EXPN command, 440
export-import filters, 50
exportfs command, 617–618
exporting
records, 538
tools, 1125
Extended Binary-Coded Decimal Interchange Code (EBCDIC), 230, 407
Extended ISA (EISA), 105
Extensible Storage Engine (ESE), 557
Extension Bit (EA), 253
extensions
fields, 215
headers, 656–658
SMTP, 439
Exterior Gateway Protocols (EGP), 636
External Data Representation (XDR), 612
external hard disks, 65
external USB 2.0 hard drives, 1137
Extinction Intervals, 532
F
fabric switched topology, 176–178
failed login attempts, detecting, 682–683
FAQs (Frequently Asked Questions), 922, 925
far-end cross-talk (FEXT), 79, 1093
Fast Ethernet, 213–214
fault tolerance
multi-tiered networks, 27
overview, 27
WINS, 529
Fax profile, 344
FCC (Federal Communication Commission), 286
FCS (frame check sequence), 142, 220–221, 233, 253
FDDI (Fiber Distributed Data Interface), 16
FDM (frequency division multiplexing), 193
feature creep, 52
FECN (Forward Explicit Congestion Notification), 253
Federal Communication Commission (FCC), 286
feedback to improve documentation, 922
FEXT (far-end cross-talk), 79, 1093
FHS packet, 340
FHSS systems, 287–288. See also wireless networks
Fiber Distributed Data Interface, 16
Fiber Login (FLOGI), 177
attenuation, 91
electromagnetic immunity, 88
light transmission, 90–91
operation, 89
patch panels, 98
safety, 89
security, 89
size and weight, 89
splicing, 97
total internal reflection, 91
Fibre Channel
fabric switches, 177
IP, 172
SANs, 170–172
FID (File ID), 599
fields
Access Code, 339
Address, 340
BOOTP, 483–488
electromagnetic, 79
Extension, 215
Frame Check Sequence, 215
Option Type, 658
Packet Header, 339
Route Tag, 641
Type, 340
File Migration Utility (FMU), 1011–1016
File Transfer Protocol. See FTP
files
auditing
applying AUDITCON tool, 847
enabling, 838–841
CIFS, 607–608
configuring, 618–619
DFS, 623–625
DNS servers, 546
/etc/printcap configuration file, 761–764
events, 834
FORTRAN, 759
fstab, 615–616
FTP, 404–405
commands, 407–408
data transfers, 406–407
ports/processes, 405
Red Hat Linux, 414–417
replies, 409–411
TFTP, 417–419
Windows command-line clients, 411–414
HOSTS, 543
hosts.equiv, 425–426
LMHOSTS, 525–528
map, 619
configuring, 613
daemons, 614–617
procedures, 612–613
RPC, 610–611
server-side daemons, 616–621
troubleshooting, 621–622
XDR, 612
NTFS
permissions, 733
Windows NT permissions, 736
permissions, 745–746
.rhosts, 425–426
servers, 594–595
shares, 1073
SMB, 599–601
syslog.conf, 829–832
system
automating, 619
comparing rights, 742
DFS, 623–625
Linux/Unix, 832
mounting, 615–620
NetWare rights, 740–741
sharing, 617–618
Unix
administration, 704–707
/etc/groups file, 706–707
/etc/passwd, 704–706
modifying accounts, 707–708
shadow password files, 706
filters
application based, 877
capture, 937–938
display, 937–938
IP addresses, 874
packets, 112–113, 156, 873, 877
port numbers, 875–876
finger command, 432
finger utility, 431–432
Firewall Toolkit (FWTK), 880, 1115
802.11b networks, 296–297
application based filtering, 877
combining hardware and software, 891
executing, 887–889
FAQs, 1114
FTP, 424
FWTK, 1115
hardware, 889–890
hybrids, 886–887
Intrusion Detection, 877
IP addresses, 874
NAT, 884–885
network security, 825
packet filters, 873
port numbers, 875–876
protocols, 874–875
proxy applications, 882–883
routers, 149
Telnet, 424
troubleshooting, 891–892
Windows versus third-party firewalls, 877–878
FireWire (IEEE 1394) bus, 104
firmware for routers, 320
FIRST (Forum of Incident Response and Security Teams), 1113
first-generation cable systems, 273
flags
IP, 368
MF, 368
system, 446
FLOGI (Fiber Login), 177
flooding, SYN, 860
FMU (File Migration Utility), 1011–1016
folders
auditing, 838–841
Web-based printers, 789–792
forests (Active Directory), 564–567
forged email, 862
formatting
addresses, 500–504
back-out procedures, 51
data (IMAP4), 447
IEEE drafts, 188
options fields (BOOTP), 485–488
packets
BOOTP, 483–484
DHCP, 491–493
reports, 848
request/reply mechanisms, 484–485
selectors, 830
FORTRAN, 759
Forum of Incident Response and Security Teams, 1113
Forward Explicit Congestion Notification (FECN), 253
forward-paths, 438–439
FPNW 4.0, 1001–1002
FPNW 5.0, 1003–1006
FPS (Frames Per Second), 934
FQDN (fully-qualified domain name), 544
Fractional T1, 243
fragments
IPv6, 657
offset, 368
frame check sequence (FCS), 142, 220, 233, 253
Frame Check Sequence fields, 215
frames, 363
ARP, 382
ATM, 245–246
ethernets, 208
802.2 LLC standard, 211–213
802.3 standard, 210
Ethernet II/PARC, 209–210
giant frame errors, 222–223
jabber, 222
jumbo, 215
opcode for ARP, 383
PPP, 233
relays, 251–252
ATM, 645
headers, 252–253
LMI, 254
MPLS, 645
preventing network congestion, 253–254
SVC, 254–255
troubleshooting, 255–256
security, 156
runts, 221–222
troubleshooting, 220–221
VLAN, 139
Frames Per Second (FPS), 934
French National Institute of Research for Computer Science and Control (INRIA), 628
frequency division multiplexing (FDM), 193
frequency hopping, 335
Frequency Hopping Spread Spectrum (FHSS) systems, 287–288
Frequently Asked Questions (FAQs), 922, 925
FSC (FTP Service Commands), 407
fstab file, 615–616
FTP (File Transfer Protocol), 404–405, 594
commands, 407–408
data transfers, 406–407
firewalls, 424
ports/processes, 405
properties, 1029
Red Hat Linux, 414–417
replies, 409–411
TFTP, 417–419
Unix, 1025–1027
Windows command-line clients, 411–414
FTP Service Commands (FSC), 407
full synchronization, 680
full-duplex communications, 80, 233
full-duplex connections, 21–22, 968
full-duplex ethernet, 129–130
full-duplex technologies, 22
fully-qualified domain name (FQDN), 544
fusion splicing, 97
FWTK (Firewall Toolkit), 880, 1115
G-H
gateway roles, 343
Gateway Services for NetWare (GSNW), 995–1000
gateways, 113, 533, 879–881, 885
general horizontal cabling subsystem, 100
General Inquiry Access Code (GIAC), 339
General tab, 695
Generic Access profile, 341–342
generic accounts, naming, 684
Generic Audio/Video Distribution Profile (GAVDP), 344
Generic Flow Control (GFC), 245
Generic Object Exchange Profile (GOEP), 341, 344
GET command, 413
GFC (Generic Flow Control), 245
GIAC (General Inquiry Access Code), 339
giant frame errors, 222–223
Gibson Research Corporation (GRC), 891, 1113
GID (group ID), 708
Gigabit Ethernets, 215–216
10 Gigabit Ethernet, 216
backbones, 971
costs, 972
desktops, 972
high-end servers, 971
PCs, 128
technologies, 199
traffic volume, 972
transitioning, 48
Globally Unique Identifier (GUID), 1053
GOEP (Generic Object Exchange Profile), 344
Google’s Group search, 919
grabbers, 821–822
Grisoft, 1113
group ID (GID), 708
Group Memberships dialog box, 676
groups
Active Directory, 738–740
built-in, 698–700
Diffie-Helman, 896
Domain Admins users, 670
Everyone, 744
implicit, 744
multicasting, 363
rights
creating, 736–737
Windows NT/2000, 728–729
Unix, 706–707
users
creating, 700–701
modeling directories, 1052–1053
Windows 2000, 696–702
Windows
2000, 737–738
2003, 737–738
NT, 672–676
GSNW (Gateway Services for NetWare), 995–996
Windows 2000 server, 998–1000
Windows NT 4.0 server, 999
GUID (Globally Unique Identifier), 1053
guidelines for usage, 813
h-node clients, 533
hackers (WANs)
back doors, 863
forged email, 862
passwords, 862–863
preventing attacks, 853–854
Trojan horses, 855
types of attacks, 857–862
viruses, 855–857
half-duplex communication, 80
half-duplex connections, 21–22
half-duplex technologies, 22
handheld cable checkers, 929
Hands-Free Profile (HFP), 345
handshakes, 649–650
harassment, 812
hard disks, backing up, 65
hardware
10BASE-2 networks, 964–968
addresses, 380–385
analyzers, 939–940
autosensing, 109
bus types, 104–108
Cisco, 1109
connectors, 968
deleting, 812
firewalls, 889–891
HP, 1110
IBM, 1109
Juniper Networks, Inc., 1110
manufacturers, 1109–1110
Microsoft, 1110
name resolution, 525
network sniffers, 864
Red Hat, 1111
Samba.org, 1111
secure disposing, 817
switches, 132
chassis, 135
cut-through switches, 133, 1090
home offices, 134–135
Layer 3 switches, 133–134
stackable, 135
store-and-forward switches, 133, 1102
vertical-market applications, 1130–1134
Windows 2003 Server requirements, 1062–1063
hardware-based print servers, 803–805
Hardware-Specific Module (HSM), 115
HASH command, 413
HBA (Host Bus Adapter), 172
HCL lists, accessing, 1063
HDLC (High-Level Data Link Control), 232
HDSL (High bit Data Rate DSL), 263
Header Error Control (HEC), 246
headers, 1083
checksum, 368
fields, 630
frame relay, 252–253
IP, 366–369
IPv6, 655–658
TCP, 386–388
UDP, 395
Headset profile, 343
HEC (Header Error Control), 246
HELLO protocol, 636
HELO command, 439
HELP command, 440
Help files, 1130
Hewlett Packard (HP), 1110
HFP (Hands-Free Profile), 345
hidden nodes, 289
hierarchies
namespaces, 1119–1121
network organization of routers, 149
High bit Data Rate DSL (HDSL), 263
high-end servers, Gigabit Ethernets, 971
High-Level Data Link Control (HDLC), 232
hold mode, 338
home offices. See SOHO
hops
counts, 638
IPv6, 657–658
patterns, 335
horizontal cabling system, 76–77
Host Bus Adapter (HBA), 172
host computers
configuring, 452–457
preventive security measures, 866–867
security, 853
Tripwire, 867–868
hostname command, 452–453
hostnames, retrieving, 316
HOSTS file, 543
hosts.equiv file, 425–426
hotspots, 281
HP (Hewlett Packard), 1110
HSM (Hardware-Specific Module), 115
HTPP (Hypertext Printing Protocol), 629–630, 752
hubs, 148
10BASE-2 networks, 969–970
backbones, 208
class I, 214
class II, 214
collisions, 202
disadvantages, 126
Ethernet switches, comparing, 126
star topologies, 205–206
hybrid firewalls, 886–887
Hybrid LAN topologies, 18, 206
hierarchical star, 19–20
star-wireless, 19–20
tree, 18–19
Hypertext Printing Protocol (HTPP), 752