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Index
U
U.S. Department of Defense, protection levels, 148
u (user) category, file permissions, 210
UDP (User Datagram Protocol), 657-659
connectionless nature of, 658
features of, 657
IP support for, 41
packet transfer with, 623
ports, 658
UFS (UNIX File System)backup and restore, 293-296
file systems supported by Solaris, 40
installing, 74
newfs command and, 262
Solaris file systems and, 191
ufsdump, 293-296
ufsrestore, 293-296
UID (user ID), 122-123, 167-168
UltraSPARC systemsintegrated circuits, 4
support for, 48
UltraSPARC 5 workstation, 49-50
UltraSPARC E-450 server, 49-50
umask (user mask), 214-215
unicast addresses, IPv6, 649
Universal Serial Bus (USB), 14
UNIXcharacteristics of, 36
contributions of BSD to, 10-11
contributions of System V to, 11
developers of, 8-9
developer’s web sites, 25
development principles, 7, 38
enterprise operating systems, 10
features of, 6-7
first distribution by BSD, 9
version 7, 9
UNIX File System. See 11
unmount command, 277-278
options, 277-278
unmounting local file systems, 277
unmounting remote file systems, 444
unshare command, 440
USB (Universal Serial Bus), 14
USENET resources, 25-26
user accounts. See users
user-attr file, 505
User Datagram Protocol. See 122-123, 167-168
user interface, separating from operating system, 38
user mask (umask), 214-215
user (u) category, file permissions, 210
useradd command, 123-124
userdel command, 125-126
usermod command, 124
usernames, modifying with admintool, 131
users, 121-136
adding groups, 127
adding users, 123-124
admintool and, 130-133
creating in iDS, 567, 570
group characteristics, 126-127
group management, 127-128
modifying, 124-125
monitoring, 145-146
passwords, 128-130
permissions (setuid), 215-216
purposes of, 121-122
Q & A, answers, 136
Q & A, questions, 134-135
removing, 125-126
searches, 573
security and, 138-140
user characteristics, 122-123
USL (UNIX System Laboratories), 11
/usr/bin/du, 194-195, 398-399
/usr/bin/fsck. See fsck command
/usr/sadm/bin/smc, 517
/usr/sbin/eeprom command, 111
