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UDP and port numbers (table), 712-715
Unicode, IIS, vulnerabilities in, 101
UNIX
configuring interoperability, 489
Network Mapper (Nmap), 701
Unlicensed National Information Infrastructure (UNII) band, 390
update installations, troubleshooting, 112, 182-183
updates
analyzing for, 143-145
analyzing using MBSA, 147-150
deploying and managing, 152-181
deploying to existing computers, 165-166
getting using Windows Update Catalog, 169-172
identifying required, 134-136
installing in isolated networks, 165
installing on new computers, 155
scripting, 163-165
searching for missing, 145-151
services. See specific service
testing, 154-155, 181
version conflicts, 183
updating
servers, special considerations, 181
single computer using Windows Update, 166
upgrading Windows NT PDC to Windows 2000, 9
URLScan, ISAPI filter, 122
URLScan tool, 100-102
User Account Properties window (fig.), 499
user authentication
configuring, 488-496
User Datagram Protocol (UDP), 369
user operations using file encryption, 271
user profiles, remote access, 566
user rights assignment, Local Policies (table), 37-39
users, impersonating, 296
User State Migration Tool, Web site download, 112
user tickets, changing maximum lifetime, 474
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