Linux

Question 1

The VI editor lets a user create new, or edit existing ______ . The command to start the VI editor is vi, followed by the ____ name

Answer 1

files

file name

Question 2

The command to quit out of VI is

Answer 2

:q or :wq saves

Question 3

You can specify a different file name to save to by specifying the name after the

Answer 3

:w filename

Question 4

How do you show where you are in the cmd?

Answer 4

pwd

print working directory

Question 5

how to access etc under the root folder?

Answer 5

cd /etc

Question 6

how to get to home folder easily?

Answer 6

cd (automatically go to home directory)

Question 7

How to get to parent directory?

Answer 7

cd ..

Question 8

List the contents of a directory?

Answer 8

ls
ls ~l or ll(long list)
ls /etc (to get a specific file directory listing
ls /bin /sbin (for two directories)
ls ~all ~ (all the files (including hidden files) in your home directory)
ll /boot (shows file size)

Question 9

How to create a new directory in home directory?

Answer 9

mkdir /testdir

Question 10

How to make a file in another directory in the etc directory?

Answer 10

cd /etc ; mkdir /newdir

Question 11

Create in one command the directories ~/dir1/dir2/dir3 (dir3 is a subdirectory from dir2,and dir2 is a subdirectory from dir1)

Answer 11

mkdir ~p ~/dir1/dir2/dir3

p creates parent structure files on the fly

Question 12

How to remove a directory?

Answer 12

rmdir filename

Question 13

How to rename files?

Answer 13

mv (oldfilename) (newfilename)

mv wolf.jpg wolf.pdf

Question 14

Display the first 12 lines and last line

of /etc/services.

Answer 14

head -12 /etc/services

tail -1 /etc/services

Question 15

Create your user account

Answer 15

useradd -c “Jaimie Drost” jdrost

name then username

Question 16

how to add a group setting group id?

Answer 16

groupadd -g 60003 it-admins

Question 17

how to add user to group?

Answer 17

usermod -G it-admins jdrost

Question 18

how to modify the sudo, by adding a line to a group?

allowing group for it having unrestricted access

Answer 18

visudo
then go to end of line
CTRL I
%it-admins ALL=(ALL) ALL
\:wq (to save)

Question 19

how to modify the sudo, by adding a line to a group?

allowing group for it having unrestricted access

Answer 19

visudo
then go to end of line
CTRL I
%it-admins ALL=(ALL) ALL
\:wq (to save)

Question 20

How to download vmware tools?

Answer 20

Yum install open-vm-tools

Question 21

how to show: Field for user id: and encrypted password

Answer 21

Less /etc/shadow

Question 22

PAM stands for?

- It provides _____ authentication support for applications and services

Answer 22

Pluggable Authentication Modules (PAM)

dynamic

Question 23

Directory for pam folder
Can change password history options
Also where lock out comes into play

Answer 23

Ls /etc/pam.d

Question 24

How do you configure the default password quality requirements for the system?

Answer 24

vi /etc/security/pwquality.conf

/etc/logins.d

Question 25

Move and change users/groups?

Answer 25

Usermod- modify groups for users
-G -modify groups you belong to
Usermod -G itadmins jdrost
Usermod -aG projects jdrost (ammend leaves in current groups and adds to specified group)

Question 26

see how password aging works?

Answer 26

chage –list (user)

Question 27

To change password settings:

Answer 27

sudo chage
then shows options
then include username

Question 28

edit passwords stuff

Answer 28

sudo vi /etc/login.def

Question 29

Ways to edit password system authentication and password authentication

Answer 29

sudo vi system-auth

sudo vi password-auth

Question 30

how to move all files and folders in folder

Answer 30

mv -v ~/Downloads/* ~/Videos/

Question 31

see user list

Answer 31

/etc/shadow

Question 32

see group list

Answer 32

/etc/group

Question 33

How to Restart network

Answer 33

systemctl restart network