See also data communications equipment disaster recovery plan, 165 plan, 161 server, 219 compatibility, 199.. See Computing Technology Industry Association Computer Emergency Response T
Trang 1CD-DVD access, 380, 380–381, 381
CD-ROM, 311–312
central processing unit (CPU), 176–177
CERT See Computer Emergency Response Team
certification, 7
of cable plant, 55
of company reports, 392
Dell, 190
server, 179
change, 147
change control system, 9, 399–400, 411–413
channel service unit/data service unit
(CSU/DSU), 28
character devices, 338, 339
characters, password, 145
chgrp, 339–340
chmode, 340
chown command, 339
Cisco, 7
Citrix, 26
civil penalties, 393
classes, 118
Client Access Licenses (CALs), 230–231
client/server database systems, 20
client/server network, 18, 19, 20
administration, 23
backup, 22
cons, 23
peer-to-peer network or, 20–23
pros, 22
clone chips, 179
clustering, 188
coax See coaxial cable
coaxial cable (coax), 36, 48
with BNC connectors, 53
mixing cables with, 52
separation of, 55
troubleshooting, 56–57
code of ethics, 394
cold recovery site, 164
collision domain, 34, 69
collisions, 46, 219
command line, 331–333
command-line tools, 342–351
commands
cat, 348
chown, 339
cp, 342
dd, 344, 344
df, 350
du, 349, 349
find, 343, 343–344
HELO, 103, 103
init, 354, 355
Is, 337, 337
kill, 354–355
ln, 342–343
location of, 350
mkdir, 346
mknod, 338, 346
more, 349
mv, 342 NET, 271 PING, 363
ps, 351, 351–352, 352, 353, 354, 362
pwd, 347 rmdir, 346–347
su, 356–357 sync, 350–351
tar, 347–348, 348
top, 354 TRACERT, 72 type, 348
uname, 355, 355, 356
uptime, 310 whereis, 350 which, 349 who, 356 Committee of Sponsoring Organizations of the Treadway Commission (COSO), 395
common bus multipoint topology, 39, 39, 40–41 communications See also data
communications equipment disaster recovery plan, 165 plan, 161
server, 219
compatibility, 199 See also Hardware
Compatibility List application, 202 Fedora Linux, 308–309 server, 189–190 virtual private network, 133–134 Windows Server 2008, 225–226
compression, 345, 345 CompTIA See Computing Technology
Industry Association Computer Emergency Response Team (CERT), 152 computer magazines, 62
Computing Technology Industry Association (CompTIA), 7
concentrator See hub
conductor, 36, 52 conduit piping, 53
configuration See also Dynamic Host
Configuration Protocol Apache web server, 363–364
DNS, 330–331, 331 Fedora Linux, 316–318, 317
hardware, 226 hot-swap, 187 Primary Rate Interface, 83 redundant array of independent disks, 187
Windows Server 2008, 226, 236, 237–240, 241, 241–242, 242
connection DS0, 85 DS1, 85–86 loss of, 163 remote control, 128–129 remote node, 128, 129, 304
Trang 2connection (continued)
sharing, 60
T-1, 85–86
traffic, 66–67
wide area network, 81–87
connection-based switched link, 79
container object, 112
contingency, 160
contractor, 54–55
control information, 32
COSO See Committee of Sponsoring Organizations
of the Treadway Commission
cost
analysis, 200
desktop computer, 202, 203
Ethernet, 61
of ISDN, 83
replacement, 202
upgrading, 203
virtual private network, 132
wide area network, 78
cp command, 342
CPU See central processing unit
cracker, 143
create home directory, 346
create only, 147
crossover cable, 51
CSMA/CD See Carrier Sense Multiple Access with
Collision Detection
CSU/DSU See channel service
unit/data service unit
Custom Exchange Server Installation, 281
D
DAP See X.500 Directory Access Protocol
data channels (D-channels), 82
data communications equipment (DCE), 50
data corruption, 172
data terminal equipment (DTE), 50
data transfer, synchronous, 79
database
client/server, 20
high-end, 167
datagram, 90
data-link layer, 30
DCE See data communications equipment
D-channels See data channels
dd command, 344, 344
decimal numbering system, 12, 13–14
decimal points, 13
dedicate print server, 25
dedicated computer, 19
dedicated remote access system, 26
default name, 143
Dell, 190
demilitarized zone (DMZ), 153
denial of service (DoS), 149, 153
Department of Defense (DoD), 254
desktop computer choosing, 198 consistency with, 203 cost, 202, 203 network workstation for, 204–205 performance of, 203
platform, 198–200 reliability, 201 serviceability, 201–203 useful life of, 204
df command, 350
DHCP See Dynamic Host Configuration Protocol
dial-back, 151 differential backup, 170
digital linear tape (DLT), 168, 169
digital subscriber line (DSL), 83–84, 85
directory, 111 See also Active Directory; eDirectory;
Lightweight Directory Access Protocol; X.500 Directory Access Protocol
Apache web server, 363 create, 346
Linux, 338, 339 print, 347 remove, 346–347 security for, 147–148 shared, 213 show, 349 directory service, 110, 115 multimaster model, 113 partition by, 114 primary/backup model, 113 redundancy, 111, 113
tree-based organization of, 112, 112
disaster recovery plan backups in, 166–171, 397 communications in, 165 definitions, 403 off-site storage in, 165–166, 168 replacement list in, 166, 398 sample, 402–405
scenarios for, 163–164 disclosure, 394
discovery, 72 disk cache, 350–351 controller, 191 display free space, 350 drives, 181–182 failure, 164 images, 203 independent mode, 377 interfaces, 181–182 size, 377
synchronization, 350–351 testing, 228
utilization, 349, 349 virtual, 376, 376–378, 377, 385
Windows Server 2008, 227, 229 distinguished names (DNs), 118
DLT See digital linear tape
Trang 3DMZ See demilitarized zone
DNS See Domain Name System
DNs See distinguished names
DNS servers See domain name servers
documentation, 9
Fedora Linux, 335–336
security, 148
DoD See Department of Defense
domain controller, 229, 230
domain name servers (DNS servers), 100
Domain Name System (DNS), 98–100, 116, 299
with Active Directory, 300–301
configuration for, 330–331, 331
Microsoft Management Console, 300, 301
multiple, 300–301
with Windows Server 2008, 300–301
domains, 229 See also top-level domain names
collision, 34
models of, 116
new, 245–249
server controller, 230
types, 99
Windows NT, 115–116
Windows Server 2008, 240–241, 245–249
DOS
mkdir command with, 346
more command, 349
pwd command with, 347
rmdir command with, 346, 347
type command with, 348
wildcard expansion, 332
DoS See denial of service
DS0 connection, 85
DS1 connection, 85–86
DSL See digital subscriber line
DTE See data terminal equipment
dual data guarding, 185
dual-boot system, 310–311
ducts, 53
duplexing, 183
Dynamic Host Configuration Protocol (DHCP), 100
reservation with, 299
TCP/IP scope for, 298
E
earthquake, 158–160
ECC See error checking and correction
echoing, 68
by switch, 70
eDirectory, 113, 114, 115
EIA See Electronic Industries Alliance
802.11g, 63
802.11n, 63
Electronic Industries Alliance (EIA), 51
e-mail, 26 See also Simple Mail Transfer Protocol
automated, 278
external, 26
file-based, 25
e-mail (continued)
gateway for, 73 patch notification through, 193 security, 153, 154
emergencies, 158–161, 400 Emergency Operations Center (EOC), 158–160, 161 enterprise resource planning (ERP) system, 27 entries, 118
environment variables, 332 clearing, 334 printing, 333–334 setting, 334
EOC See Emergency Operations Center EPIC See Explicitly Parallel Instruction Computing ERP See enterprise resource planning system
error checking and correction (ECC), 180, 181
/etc/hosts file, 329–330, 330
Ethernet
10 Gigabit, 42 10Base-T, 42–43, 46 100Base-T, 42, 43 1000Base-T, 43–44 cabling of, 49 capacity, 218 collision handling, 219 cost of, 61
Fedora Linux, 329, 329
Gigabit, 42 network, 217 scaling, 217 Thick, 48 Thin, 41, 48, 52, 66 wireless, 62–64 Ethernet Subnetworking Access Point (SNAP), 107 Event Viewer, 276
Exchange Server 2010, 278, 288
Customer Experience Improvement
Program, 282–283, 284
Exchange Management Console, 286–287
installation of, 279–286, 280, 281,
282, 283, 286, 287
mailboxes for, 286–294, 291, 292, 293 name for, 282
Outlook Web Access through, 291–293, 294 requirements for, 279, 280, 283–284, 285
exclusive OR (XOR) data, 184 Explicitly Parallel Instruction Computing (EPIC), 178 extender device, 85
F
F5 Networks, 136 failover services, 166 Fast SCSI, 181
FAT See File Allocation Table FDDI See Fiber Distributed Data Interface
Fedora Linux Apache web server under, 361, 363
boot loader, 315–316, 316
Trang 4Fedora Linux (continued)
CD-ROM installation, 312
command line in, 331–333
command-line tools, 342–351
compatibility, 308–309
documentation tools in, 335–336
dual-boot system, 310–311
environment variables with, 332, 333–334
/etc/hosts file, 329–330, 330
Ethernet, 329, 329
file management in, 337–342
graphical user interface (GUI), 310, 324
hardware compatibility with, 308–309
hosts in, 329, 330, 330, 331
initial configuration, 316–318, 317
installation method, 311–312
installation tools of, 308
IP address, 329, 329
kernel of, 310
in live mode, 312
log in, 319, 320
miscellaneous tools with, 355–357
naming, 313, 313
Network Configuration window, 328
partitioning, 310–311, 314–315, 315
password, 327, 328
permissions, 340, 340–341, 341
preloaded, 308
problems with, 320–321
process tools with, 351–355
root account, 313–314, 324, 327,
328, 355, 356–357
settings, 319
user account, 317, 318
User Manager program, 324–327, 325, 326, 327
Fiber Distributed Data Interface (FDDI), 44
fiber-optic cable, 48
Fibre Channel, 182
file See also permissions
compression, 345, 345
concatenate, 348
conversion, 344, 344
copying, 342
create, 346
display, 349
Fedora Linux, 337–342
find, 343, 343–344
ISO, 371, 381
linking, 342–343
listing, 337
moving, 342
normal, 337
server, 24
File Allocation Table (FAT), 229
file sharing, 23
licenses for, 25
security with, 24
in SOHO networking, 60
wide area network, 78
File Transfer Program (FTP), 101
with IIS, 302
File Transfer Protocol (FTP), 101 filename expansion, 332 financial statements, 393
find command, 343, 343–344
fingerprint readers, 146 FirePass, 136
firewall, 28, 150 application-based, 74 virtual private network, 135 5-4-3 rule, 41
floods, 163
floppy drive access, 382, 382
fob, 146 forest, 112, 116–117
functional level, 247, 250 naming of, 246, 249
fractional T-1, 86 frame-relay signaling, 86 frames, 30, 90
front-door threats, 149, 150–152
FTP See File Transfer Program;
File Transfer Protocol full backup, 170 full control, 147 full-duplex transmissions, 30 functional model, 118
G
GAO See U.S Government
Accounting Office gateway server, 25 gateways, 73
Gbps See billions of bits per second GFS See grandfather-father-son
Gmail, 26 goals, 4 going zombie, 353 GoToMyPC, 26 grandfather-father-son (GFS), 171–172 granularity, 172
graphical user interface (GUI), 310, 311, 324
groups See also security groups
changing of, 339
remote office, 124, 125
work, 229, 230 guest account, 143
guest operating system, 366, 374, 375, 385 GUI See graphical user interface gzip, 345, 345
H
half-duplex transmissions, 30 hangup (HUP) signal, 354
The Happy Hacker: A Guide to (Mostly) Harmless Computer Hacking (Meinel), 156
hard links, 338
Trang 5hardware, 7 See also Hardware
Compatibility List (HCL)
backup, 168, 169
client/server network, 23
compatibility, 225–226, 308–309
configuration, 226
with peer-to-peer network, 22
small office and home office networking, 61–62
testing, 227–228
Windows Server 2008, 225–226, 227–228
Hardware Compatibility List (HCL), 190, 225–226
Hare, Chris, 156
HCL See Hardware Compatibility List
HDSL See High-speed DSL
HELO command, 103, 103
hertz (Hz), 15
Hewlett Packard (HP), 228
hexadecimal numbering system, 14, 15
High-speed DSL (HDSL), 84
home appliances, 63
home-run wiring, 219
host
/etc/hosts file, 329–330, 330
Fedora Linux, 329–330, 330, 331
operating system, 366
RAM for, 374
in UNIX, 100, 311
host ID (hostid), 96
hostid See host ID
HostOnly, 380
hot recovery site, 164
hot-swap components, 187
HP See Hewlett Packard
HR See human resources
HTML See Hypertext Markup Language
HTTP See Hypertext Transfer Protocol
HTTP Secure (HTTPS), 101
httpd, 360
httpd.conf, 363–364
HTTPS See HTTP Secure
hub, 34, 35, 66, 69
bridges, 68
properties of, 68–69
for SOHO networking, 61
in star topology, 41
as switch, 68, 70, 70, 71
human resources (HR), 144
e-mail mailbox for, 278
HUP See hangup signal
Hypertext Markup Language (HTML), 101
Hypertext Transfer Protocol (HTTP), 101
Hyper-V technology, 367
hypervisor, 366
Hz See hertz
I
IBM, 47
ICANN See Internet Corporation for
Assigned Names and Numbers
ICMP See Internet Control Message Protocol IDSL See ISDN-based DSL
IIS See Internet Information Services
incompatibility, 199 incremental backup, 170 independent disk mode, 377
info pages, 336, 337
information model, 118 information technology (IT), 5 init command, 354, 355 i-node, 338
inputs, 5 installation Apache web server, 361–363 cable, 54
Exchange Server 2010, 279–286, 280,
281, 282, 283, 286, 287
Fedora Linux, 308, 311–312 network operation system, 192–193 point, 25
server, 192–193, 311 Ubuntu Linux, 385 Windows Server 2008, 231–250 installation point, shared, 25 Integrated Services Digital Network (ISDN), 82–83, 132
Intel, 178 interface cards, 84–85
interfaces, 332 See also graphical user interface;
network interface card; Primary Rate Interface disk, 181–182
virtual disk, 378 interference, wireless network, 63 internal controls, 395
deviations from, 401
IT department, 396–400 testing for, 400–401 International Standards Organization (ISO), 29, 117 International Telecommunications Union (ITU), 117
Internet, 27–28 See also Windows
Internet Name Service Internet Control Message Protocol (ICMP), 153 Internet Corporation for Assigned Names and Numbers (ICANN), 95
Internet Explorer, 102 for VMware Server, 369
Internet Firewalls and Network Security
(Hare and Sayan), 156 Internet Information Services (IIS), 285 FTP, 302
Manager window of, 303, 303
NNTP in, 303 SMTP with, 303 web-hosting, 302 Internet Protocol (IP), 30, 31, 90 Internet Protocol Exchange (IPX), 30, 31 Internet Protocol Security (IPSec), 134 Internet service provider (ISP), 95, 128, 130 internetworking device, 34
interrogation, 118 interviews, 4–5