Index U

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U.C. Davis 
u(ser) access  2nd 
UCE  [See spam, suppressing]
ucomm.sh command 
UDP (User Datagram Protocol) 
UFS filesystem 
ufsdump command (Solaris) 
UID  2nd 
    0 
    assigning 
    effective  2nd 
    real 
    retired accounts 
ulimit command 
umask 
umask command 
umount command  2nd 
unintended side effects  2nd 
uninterruptable power supply (UPS) 
Universal Serial Bus  [See USB devices]
University of Delaware 
University of Maryland 
University of Michigan 
University of Washington  2nd 
Unix domain sockets 
Unix filesystem layout 
UNIX Hater's Handbook 
unsolicited commercial email  [See spam]
unusual capitalization 
upacct command 
upacct package  2nd 
UPS (uninterruptable power supply) 
USB cables 
    connectors 
USB devices 
    special files for 
    support for 
usbdevs command (FreeBSD)  2nd 
usbmodules command (Linux) 
usbutils package (Linux) 
usbview package (Linux) 
use_cw_file sendmail feature 
USENIX 
user accounts
    adding  2nd 
    attributes  2nd 
    automatic inactivation 
    captive 
    classes (FreeBSD) 
    controls  2nd  3rd 
    converting to OpenLDAP 
    default attributes 
    definition 
    disabling 
    dynamic group membership 
    expiration dates 
    GECOS field 
    group memberships 
    groups and 
    home directories  2nd  3rd  4th 
    initialization files  2nd 
    locking 
    login shells  2nd  3rd  4th 
    maximum groups 
    modifying 
    nobody 
    password file 
    passwords  2nd  3rd 
    primary group 
    projects (Solaris) 
    removing  2nd  3rd 
    resource limits  2nd 
    retiring 
    root 
    security issues 
    standard 
    system 
    testing 
    tools for managing 
    user-private groups  2nd 
user agents, mail  2nd 
    IMAP and 
    POP and 
user authentication  [See authentication]
User Datagram Protocol (UDP) 
user ID  [See UID]
user-private groups  2nd 
useradd command  2nd 
userdel command 
usermod command  2nd  3rd  4th  5th 
usernames  2nd 
users
    backups and 
    communicating with  2nd 
    educating  2nd 
    electronic mail issues 
    interacting with 
    security awareness  2nd 
    special requests 
    when they leave 
/usr/bin directory 
/usr directory 
/usr/include directory 
/usr/lib directory 
/usr/lib/passwd/passwd.conf configuration file 
/usr/lib/security/mkuser.default configuration file (AIX) 
/usr/lib/sendmail.d/bin directory 
/usr/lib/X11/fonts directory 
/usr/local directory 
/usr/local/share/snmp/snmpd.conf configuration file  2nd 
/usr/lpp directory (AIX) 
/usr/ports directory (FreeBSD)  2nd 
/usr/sbin directory 
/usr/share directory 
/usr/share/man/man.cf configuration file (Solaris) 
/usr/share/skel directory (FreeBSD) 
/usr/skel directory (Tru64) 
/usr/src directory 
/usr/ucb directory 
UTC (Coordinated Universal Time) 
utmp accounting file 
UUCP  2nd