Index_U

U

UCS-2, 360

UDP packet, 351

UDP port 53, 412

UDP (User Datagram Protocol), 162

UNC (Universal Naming Convention), 338

underscore character ( _ ), 360–361, 396

Unencrypted Password, 314

unicast addresses, 213

unicast messages, 421

Uniform Resource Locator (URL), 62

Uninterruptible Power Supply (UPS), 114, 625

unique NetBIOS names, 418

universal group scope, 792

Universal Naming Convention (UNC), 338

universal security groups, 87

Universal Transformation Format-8 (UTF-8), 360

UNIX, 399–400

updates

convergence time and, 427

from Microsoft Windows Update Web site, 115–117

with Software Update Services, 837–847

WINS change-only replication and, 428

See also dynamic updates; security update infrastructure

upgrades

hardware, 29

server, 43

testing, 34

UPS (Uninterruptible Power Supply), 114, 625

URL (Uniform Resource Locator), 62

US-ASCII, 359–360

user

access, 118

authentication, 308–309, 800

authorization, 784

authorizing remote access by, 516–518

enabling remote access by, 493–494

locations, network planning and, 11

logon restrictions, 825

managing remote access by, 532

priorities, network planning and, 17–26

remote access needs, 487

restricting remote access by, 521

user account

network testing and, 31

security, 796–797

security scenarios, 798–800

user certificates, 497, 870, 896

User Datagram Protocol (UDP), 162

user rights

assigning, 826–827

for backups, 594–595

IPSec policies and, 742

user ticket, 825

UTF-8 (Universal Transformation Format-8), 360