U

Index

UCM,
umount command,
uninstalling, software packages,
Unix,
history of,
unset,
unsolicited commercial mail,
unsupported drivers,
updating,
URL addresses,
usenet newsgroups, ,
user accounts, ,
configuring,
user interfaces,
user-defined chains,
users
absolute permissions,
adding and removing,
configuration files,
controlling passwords,
directory permissions,
/etc/login.access,
/etc/login.defs,
/etc/skel,
managing groups,
ownership,
ownership permissions,
password files,
permission defaults,
permission symbols,
permissions, ,
profile scripts,
sticky bit permission,
/usr directories,