How To Add a User and Grant Root Privileges on Fedora 23

Users via Command Line 101: Basic User Interaction
I. How to Add a User and Grant Root Privileges on Fedora 23
II. How to Remove (Delete) a User on Fedora 23

Pre-Flight Check

  • These instructions are specifically for adding a user on Fedora 23. The process is identical in most other Linux operating systems.
  • For this tutorial, we’ll be using a Liquid Web Self Managed Fedora 23 server, logged in as root.

Step #1: Add the User

In this case, we’re adding a user called “newuser”:

adduser newuser

Now set the new user’s password:

passwd newuser

After entering the new password, you will need to enter it a second time to confirm.

Step #2: Give the User Root Privileges

We’ll need to edit the sudoers file to add permissions for the new user. To open the file for editing, enter the following command:

visudo

In vim, you can press “a” to enter text insertion mode, and hit the escape key (Esc) on your keyboard to return to command mode. For a refresher on editing files with vim see: New User Tutorial: Overview of the Vim Text Editor.

Find the following code:

## Allow root to run any commands anywhere
root ALL=(ALL) ALL

In this case, we’re granting root privileges to the user “newuser”. Add the following below that code:

newuser ALL=(ALL) ALL

Then type :wq to exit and save the file.

If you’ve followed the instructions correctly, then you now should have a user named newuser who can use sudo to run commands as root!

Should you want to remove (delete) the user, follow the instructions at How To Remove (Delete) a User on Fedora 23.
 

How To Remove (Delete) a User on Fedora 23

Users via Command Line 101: Basic User Interaction
I. How to Add a User and Grant Root Privileges on Fedora 23
II. How to Remove (Delete) a User on Fedora 23

Pre-Flight Check

  • These instructions are intended specifically for removing a user on Fedora 23. The process on most other Linux operating systems is identical.
  • For this tutorial, we’ll be using a Liquid Web Self Managed Fedora 23 server, logged in as root.

Step #1: Delete the User

In this case, we’re removing the user we added in How To Add a User and Grant Root Privileges on Fedora 23, newuser:

userdel newuser

If you want to remove the user and all of the user’s files as well, you can include the “-r” flag:

userdel -r newuser

Note: Before removing a user’s files, please be certain that they won’t be needed again, as the files will not be recoverable. If in doubt, first back up the files by moving them to another location or downloading them locally first.

Step 2: Remove the User’s Root Privileges

Run the command:

visudo

And find the following code:

## Allow root to run any commands anywhere
root ALL=(ALL) ALL
newuser ALL=(ALL) ALL

In this case, we’re removing root privileges from the user “newuser”, so remove the following line:

newuser ALL=(ALL) ALL

In vim, you can press “a” to enter text insertion mode, and hit the escape key (Esc) on your keyboard to return to command mode. For a refresher on editing files with vim see: New User Tutorial: Overview of the Vim Text Editor.