Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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
|
