U
U.S. Privacy Act of 1974, 5
Uninterruptible Power Supply (UPS), 607608
Universal groups
described, 516
function of, 491
nesting, 493
in permission structure, 491492, 493, 498
UNIX Berkeley Internet Name Domain (BIND) DNS implementation, 3738
UNIX Berkeley Internet Name Domain (BIND) servers, 47
unnumbered connections, 421422
unsecured communication, 283
updates. see also Software Update Services; patch management
auto-static for routing tables, 416
critical security, 41
IIS and, 399
UPS Uninterruptible Power Supply (UPS), 607608
URL authorization, ASP.NET, 389
usability
network security and, 244247
vs. security, 6, 141
user accounts
account security policies, 463474
auditing user account activity, 480486
management plan, 165
rights/permissions, 496
risks to, 457458
security of, 454
user password tips, 476477
user rights assignments, 463470
user authentication. see authentication
user-based authentication, Wi-Fi, 334
users. see also clients
accounts, securing, 645646
default for DNS RRs in Active Directory, 302303
default for DNS Server Service, 299
default in AD-Integrated zones, 300301
EFS and, 571574
restricting access to OS features, 637639
securing access for, 615