Question

Create two groups named VB (GID=5001) and Norfolk (GID=5002).

• Create three different accounts with password under each group

• Display the accounts information of each user, including UID, GID, and password hash.

In linux

Answer 1

To creat goup VB with GID 5001, use command.

sudo addgroup --gid 5001 VB

• addgroup command in Linux is used to add a new group to your current Linux machine

To creat goup Norfolk with GID 5002, use command.

sudo addgroup --gid 5002 Norfolk

• addgroup command in Linux is used to add a new group to your current Linux machine

To add users to group VB, use command

useradd is a command in Linux that is used to add user accounts to your system. It is just a symbolic link to adduser command in Linux

sudo user add -G VB abc

• This adds abc user

sudo user add -G VB abcd

• This adds abcd user

sudo user add -G VB abcde

• This adds abcde user

To add password to created users, use command:

passwd command is used to change the password of system users

sudo passwd abc

This changes password for abc

sudo passwd abcd

This changes password for abcd

sudo passwd abcde

This changes password for abcde

To add users to group Norfolk, use command:

sudo useradd -G Norfolk sam

sudo useradd -G Norfolk sammy

sudo useradd -G Norfolk sunny

To add password to users, use command:

sudo passwd sam

sudo passwd sammy

sudo passwd sunny

To view the password hashes of created command, use command:

sudo vi /etc/shadow

• /etc/shadow file which contains the encrypted password information for UNIX / Linux user's accounts

To view UID and GID or users, use command:

sudo vi /etc/passwd

• vi is an editor in Linux
• /etc/passwd is a text file that contains the attributes of (i.e., basic information about) each user or account on a computer running Linux

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