The sudo command is designed to allow users to run programs with the security privileges of another user, by default the root user.
In this guide we will show you how to create a new user on a Ubuntu machine and give it sudo access. You can then use this user account to execute administrative commands without a need to logging in to your Ubuntu server as a root user.
How to use sudo
To use sudo, simply prefix the command with
sudo and a space:
Steps to create a sudo user :
Follow the steps below to create a new user account and give it sudo access. If you want to configure sudo for an existing user, skip to step 3.
Step 1: Log in to your server.
Log in to your system as the root user:
$ ssh root@server_ip_address
$ ssh root@hostname
Step 2: Create a new user account.
Create a new user account using the
adduser command. Don’t forget to replace
username with the user name that you want to create:
$ adduser username
Step 3: Add the new user to the sudo group
By default on Ubuntu systems, members of the group
sudo are granted with sudo access. To add the user you created to the sudo group use the usermod command:
usermod -aG sudo admin-devops
Step 4: Test the sudo access
Switch to the newly created user:
$ su - username
Use the sudo command to run the whoami command:
$ sudo whoami
Start the server vm-rcherara-devops
Connecte to the server vm-rcherara-devops
Adding the user admin-devops to the sudoers group