Index
[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]
U.S. Library of Congress
UCE [See Spam.]
udev utility
UDP 2nd
UDP/IP
ufs filesystem
ufsdump utility
UID
effective
passwd file, in
ulimit builtin
umask builtin 2nd 3rd
umount utility 2nd 3rd 4th
umsdos filesystem
unalias builtin 2nd
uname utility
uncompress utility
Undecillion
Undeclared variable
Unicast packet 2nd
Unicast vs. broadcast
Unicode
uniq utility
Unique filename 2nd
University of Illinois
UNIX
Bourne Shell
domain socket
philosophy
printing, traditional
System V 2nd
System V Interface Definition [See System, V Interface Definition.]
unix2dos utility 2nd
unlink() system call
Unlock view, Konqueror
Unmanaged window
Unmount a busy filesystem
Unpack archive file using tar
unset builtin 2nd 3rd
Unshielded twisted pair [See UTP cable.]
until control structure
unzip utility
up2date utility 2nd
up2date-config utility
update command (cvs)
updatedb utility 2nd
Upgrade [See Red Hat, Enterprise Linux versus Centos Linux.]
Upgrading software
ups utility 2nd
uptime utility
Uptime, display using w
urandom file
URI
URL 2nd
Usage message 2nd 3rd 4th 5th
Usenet 2nd
User
accounts, manage
add 2nd
authentication
cannot log in
communication, network
created variable 2nd
Datagram Protocol [See UDP.]
finger
ID [See UID.]
interface 2nd
map, Samba
mode
modify 2nd
name [See Username.]
name, Samba
nfsnobody
nobody, Samba
private groups
remove
root [See Superuser.]
Samba
Superuser [See Superuser.]
w
who
user_list file (vsftpd)
useradd utility
userdel utility
usermod utility
Username 2nd 3rd
Userspace
usr partition
UTC
Utility
accept
accton
adduser
AIDE 2nd 3rd
amanda
Anaconda
anacron
apm
apropos 2nd 3rd 4th
aspell 2nd
at 2nd 3rd
authconfig
automount
basename 2nd 3rd
beagle
bison
BitTorrent [See BitTorrent.]
builtin versus
bunzip2 2nd
bzcat
bzip2 2nd 3rd
bzip2recover
cancel
cat 2nd 3rd 4th 5th 6th
chkconfig
chkrootkit
chmod 2nd
chsh
clear
compress 2nd
consolehelper 2nd
cp 2nd 3rd
cpio 2nd
crack
crontab 2nd
cut
cvs
date 2nd
ddd 2nd
depmod
df
dhclient
diff 2nd
dig 2nd 3rd 4th
disable
dmesg 2nd 3rd
dos2unix 2nd
DragonSquire
dsniff
dump
e2label
edquota
egrep
emacs
enable
ethereal
Evolution 2nd
exportfs 2nd
fdformat
fdisk [See parted utility.]
file 2nd 3rd
find 2nd 3rd 4th
find using whereis
find using which
finger 2nd 3rd 4th 5th
flex
fsck 2nd 3rd 4th
ftp 2nd 3rd 4th
fuser
fwtk
gaim
gawk 2nd
gcc 2nd
gcc (GNU)
gdb 2nd
gdm
gdm (GNOME)
gdmsetup
getty
gnome-control-center
gnome-font-properties
gnome-terminal
gopher
gprof
grep 2nd 3rd 4th 5th 6th 7th 8th
groupadd
groupdel
groupmod
groups
grub
gunzip
gzip
halt 2nd 3rd
head
host 2nd
hostname 2nd
hping
id
info 2nd 3rd
init 2nd 3rd 4th 5th 6th 7th
insmod
ipchains
iptables
iptables-restore
iptables-save
iwconfig
John the Ripper
jwhois
kcolorchooser
kcron
kdbg
kdm (KDE)
kerberos 2nd
kfind
Kickstart
killall
klipper 2nd
konsole
kudzu 2nd
L6
ld
ld-linux.so
ldd 2nd
less 2nd 3rd 4th 5th
lids
links 2nd
lint
ln 2nd 3rd
locate 2nd
lock
login 2nd
logresolve
logrotate
logwatch
lp
lpadmin
lpinfo
lpq 2nd
lpr 2nd 3rd 4th
lprm 2nd
lpstat 2nd
ls 2nd 3rd 4th 5th 6th 7th
lsmod
lsof
lynx
mail 2nd
mailq
mailstats
make 2nd 3rd 4th
makedbm
makemap
makewhatis 2nd
man 2nd 3rd
md5sum
memtest86+
mesg
mingetty 2nd 3rd
mkdir 2nd 3rd
mkfifo
mkfs 2nd 3rd 4th 5th
mkswap
modinfo
modprobe
more 2nd 3rd
mount 2nd 3rd 4th 5th 6th
mt
mv 2nd 3rd
mxgdb
names, typeface
nessus
net
net use (Windows)
net view (Windows)
netcat
netstat
network 2nd
newaliases
nisdomainname
nmap
nmblookup 2nd
nn
nologin
od
OPIE 2nd
option
parted
passwd 2nd 3rd 4th
pidof
pinfo
ping 2nd 3rd 4th
ping6
pirut
portmap 2nd
poweroff
praliases
printmgr
procmail
ps 2nd 3rd 4th 5th
pstree
pwd 2nd
qmail
quota
quotaon
rbac
rcp
readnews
reboot
reject
reset
restore
rhn-applet-gui
rlogin
rm 2nd 3rd 4th 5th
rmdir
rmmod
rn
rndc
rpcinfo 2nd
rpm
rsh 2nd
runlevel
ruptime
S/Key
saint
samhain 2nd
sara
scp 2nd 3rd [See also OpenSSH.]
script
sed
service
sestatus
setserial
sftp
sha1sum
showmount
shutdown 2nd
smbclient 2nd 3rd
smbstatus 2nd
smbtree 2nd
snort
sort 2nd 3rd 4th 5th
splint
srp
ssh 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th [See also OpenSSH.]
ssh-keygen
startx 2nd
stat
strace
stty 2nd
su 2nd 3rd 4th
sudo
swapon
swat
swatch
switchdesk
sylpheed
sync
sysctl 2nd
syslog
system-config-bind
system-config-boot
system-config-date
system-config-display
system-config-httpd
system-config-keyboard
system-config-kickstart
system-config-language
system-config-lvm
system-config-mouse
system-config-netboot
system-config-network
system-config-network-cmd
system-config-nfs
system-config-printer
system-config-rootpassword
system-config-samba
system-config-securitylevel 2nd 3rd
system-config-services
system-config-soundcard
system-config-users
system-logviewer
system-switch-mail
tail 2nd
talk 2nd
tar 2nd 3rd 4th
tee
telinit 2nd
telnet 2nd 3rd 4th 5th 6th
test 2nd 3rd 4th 5th
testparm
testprns 2nd
tftp
tin
TkCVS
top 2nd
torrentinfo-console
touch 2nd
tr 2nd 3rd
traceroute
traceroute6
tripwire 2nd
true
tset
tty
tune2fs 2nd
typeset
udev
ufsdump
umount 2nd 3rd 4th
uname
uncompress
uniq
unix2dos 2nd
unzip
up2date 2nd
up2date-config
updatedb 2nd
ups 2nd
uptime
useradd
userdel
usermod
uucp
vimtutor
vmstat
w 2nd
wall 2nd
wc
webalizer
wget
whatis 2nd
whereis 2nd
which
who 2nd 3rd 4th 5th 6th
whois
write 2nd 3rd
X Window System
xargs
xclock
xev
xhost
Xinerama
xmodmap
Xorg
xrn
xvnews
xxgdb 2nd
ypinit
yppasswd
ypwhich
ypxfr
yum [See yum.]
yumdownloader
zcat
zip
UTP cable
uucp utility
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