Red Hat Fedora 5 Unleashed

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UDF (Universal Disk Format) file system

udf modules

ufs modules

UIDs (User IDs) 2nd

umask command

umount command 2nd

     floppy disks, unmounting

     remote file systems, removing

umsdos modules

uname command

undeleting files

     ext2fs undeletion process

     mc command

     mke2fs-S command

unexpanded variables

unicast addressing

Universal Coordinated Time (UTC)

UNIX

     backup levels

     DNS (Domain Name System) security

     Linux comparisons

unknown image files, identifying

unless conditional statement

unmounting Samba shares

unprivileged domains

Unreal Tournament

unrecoverable file system errors

unset() function

unshar command

unshielded twisted pair (UTP) cables

until statements 2nd

up2date command 2nd

updates

     installers

     network security

upgrade installation option (Fedora Core)

upgrading

     Apache

     BIND (Berkeley Internet Name Domain)

     networks

     release cycles

uplink ports

uptime command

USB devices

     drives

     Linux support

     printers

     scanners

use function

Usenet newsgroups

     article formats

     hierarchy of

     naming

     NNTP

     Perl resources

     posts to

     threads

user accounts

     /etc/passwd files

     /etc/skel files

     chgrp command

     chmod command

     chown command

     command-line tools 2nd

     creating 2nd

     deleting

     disk quotas

     Fetchmail

     file ownership

     file permissions

     FTP users

     GIDs (group IDs)

    granting system administrator privileges to

         restricted shells

         root privileges, granting on occasion

         UIDs (user IDs), temporarily changing

     locking users out of

     login process

     MySQL

     PAM (Pluggable Authentication Module)

     passwords

         /etc/passwd file

         batch password changes

         selecting

         shadow passwords

         system password policies

     regular users

    root accounts [See root users.]

     standard users

     types of

     UIDs (User IDs) 2nd

     user activity, monitoring

    user information

         changing

         verifying

     user stereotypes

     usernames 2nd

     viewing

     websites

User directive (httpd.conf file)

USER environment variable

User IDs (UIDs)

user information directives (ftpaccess file)

     displaying administrator email address

     displaying files

     displaying prelogin banners

     last modification date notifications

User Mount Tool

user variables

useradd command 2nd

     group management

     user management

userdel command

UserDir directive (httpd.conf file)

userinfo command

usermod command

     group management

     user management

usermount command 2nd

usernames

     assigning

     creating

     format of

userpasswd command

users [See user accounts.]

usertty file

/usr directory 2nd

     /usr/bin directory

     /usr/include directory

     /usr/lib directory

     /usr/lib/modules directory

     /usr/lib/X11 directory

     /usr/sbin/ftpshut files

    /usr/sbin/smbd [See smbd daemon.]

     /usr/share/doc directory

     /usr/src/linux-2.6 directory

         /configs subdirectory

         arch directory

         Documentation directory

         kernel source code

         kernel testing programs

         scripts directory

     /usr/src/linux-2.6/configs directory

     /usr/X11/man directory

     Linux file system hosting

UTC (Universal Coordinated Time)

UTF-8 language encoding

UTP (unshielded twisted pair) cables

uucp (UNIX-to-UNIX copy program)