• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/29

Click to flip

29 Cards in this Set

  • Front
  • Back
/etc/passwd
User database, all information about a user except for passwords
/etc/shadow
Encrypted passwords of the users
/etc/group
Database of user groups
pwconv
To convert passwords to and from /etc/shadow, you can us the pwconv command. This command will also resolve discrepancies where an entry exists in /etc/passwd but not in /etc/shadow
pwuconv
To remove /etc/shadow and convert your user accounts to /etc/passwd only, use the pwunconv command
useradd
add the user (it's useradd not adduser)
usermod
Modify the user
userdel
delete the user
groupadd
add a group
groupmod
Modify the group
groupdel
delete a group
ulimit
" Prevents individual users from using system resources excessively at expense of other users
chmod
change the file/directory permissions
chown
change owner, to change the user and group affiliation of a file
chgrp
change group
umask
to modify(restrict) default access mode settings
disk quota
limit amount of disk space that a user can use
quotacheck
(initialize the quota system) checks the partitions with the quota keywords and stores the determined values in the files aquota. user and aquota. group
edquota
to edit the current quota settings for a user or group (used to specify quota limits for users and groups
insserv
install a service at a particular level (deamon to run in a run level) -install service
file systems
ext2,3,4,fat16,fat32,ntfs journaling vs non-journaling (metadata)
fdisk
program to manage file systems
mkfs
create file system
fsck
file system check and repair
rpm
used to install, remove, and find information on RPM software packages
make
used to compile source code into programs according to a makefile
makefile
a file created by a configuration script that contains settings used when compiling source code
GRUB
(Grand Unified Boot Loader) a bootloader for linux/unix, the default boot manager in SLES
LILO
(Linux Loader) another bootloader for linux/unix, the traditional boot manager used on Linux systems