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- while installing the VM, the installer would have prompted you to create 2 unique users, one was ROOT ,and other normal user
- When you log in to the VM for the first time, you always log in as normal user, and ROOT user is something you have to activate via the terminal.
- Being logged in as ROOT and performing mundane task is no advisable, hence the SUDO user exist.
- In order for a user to run SUDO, the user must belong to group=SUDO.
- if you give root an empty password during installation, SUDO will be installed and the first user will be able to use it to gain root access (currently, the user will be added to the SUDO group).
- If not, then normal user must log into the ROOT user and then create a SUDO user
- As a normal user id = username , you can enter ROOT profile by giving
command : su
It will then ask you for your ROOT password, after giving the correct password the prompt of the terminal will change
username@computername :~$
to
root@computername:/home/username# - Now you are logged in as ROOT, to confirm you can pass the command, # groups
and as output it would display root , and hence you are sure. - As a ROOT you can either create a new user and add it to sudo group or add existing user to sudo group
- To create new user, use command,
adduser newusername
The terminal will add a new user id : newusername and prompt you to create password and verify password
The terminal will then immediately create a home directory for the newusername and ask for other details like,
Fullname : Address: Home Ph: Office Ph: and prompt you if the info provided is correct ,
As soon as you verify the info is correct, you new user is created. To access this new user you must exit the ROOT terminal and exit session. The groups are allotted on at the time of session start, So log out and log in as newusername - Once the new user is created we can assign it to SUDO group or can assign existing users to access SUDO group
- To give add user to SUDO group, log into ROOT user using ~$ su command and then give command
# adduser newusername sudo
When setting up a virtual machine as new workstation for yourself.