Create an account in the Linux environment and give sudo permissions

Create an account in the Linux environment and give sudo permissions

1. View the kernel version of the Linx virtual machine

lsb_release -a

Distributor ID: Ubuntu Description: Ubuntu 18.04.2 LTS Release: 18.04 Codename: bionic
 

Create a new user:

#adduser username

set password:

passwd username

Press Enter, enter the new password and confirm the password;

Authorize sudo permissions

1. First find the location of the file. In the example, the file is in the /etc/sudoers location.

whereis sudoers

2. Modify file permissions. Generally, files are read-only by default.

ls -l /etc/sudoers

3. View file permissions

chmod -v u+w /etc/sudoers

4. Modify file permissions to be editable

5. Modify the file, add a line in the following position and save;

vim /etc/sudoers 

The contents of the file are changed as follows:

# User privilege specification

root ALL=(ALL:ALL) ALL    (already)

admin ALL=(ALL:ALL) ALL  (new)

6. Restore file permissions back to read-only.

ls -l /etc/sudoers
chmod -v u-w /etc/sudoers 

 

Finally, open a new interface and try to log in with the newly created account!