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How do I remove a user from sudoers file?

Author

John Castro

Published Mar 16, 2026

How do I remove a user from sudoers file?

If there is a user you created that you no longer need, it is very easy to delete it. As a regular user with sudo privileges, you can delete a user using this syntax: sudo deluser –remove-home username.

How do I add a user to sudo privileges in Linux?

Steps to Create a New Sudo User

  1. Log in to your server as the root user. ssh [email protected]_ip_address.
  2. Use the adduser command to add a new user to your system. Be sure to replace username with the user that you want to create.
  3. Use the usermod command to add the user to the sudo group.
  4. Test sudo access on new user account.

How do I disable sudo su?

Just use sudo su to login as root from a user in the sudo group. If you want to disable this, you have to set a root passwd, then remove the other user from the sudo group.

How do I find the sudoers list in Linux?

You can find the sudoers file in “/etc/sudoers”. Use the “ls -l /etc/” command to get a list of everything in the directory. Using -l after ls will give you a long and detailed listing.

How do I delete a user in Linux terminal?

Remove a Linux user

  1. Log in to your server via SSH.
  2. Switch to the root user: sudo su –
  3. Use the userdel command to remove the old user: userdel user’s username.
  4. Optional: You can also delete that user’s home directory and mail spool by using the -r flag with the command: userdel -r user’s username.

What is Usermod command in Linux?

usermod command or modify user is a command in Linux that is used to change the properties of a user in Linux through the command line. After creating a user we have to sometimes change their attributes like password or login directory etc.

How do I completely remove a user in Linux?

How do I remove a user from Ubuntu?

Delete a user account

  1. Open the Activities overview and start typing Users.
  2. Click Users to open the panel.
  3. Press Unlock in the top right corner and type in your password when prompted.
  4. Select the user that you want to delete and press the – button, below the list of accounts on the left, to delete that user account.

How do I restrict sudo?

How to disable “sudo su” for users in sudoers configuration file

  1. Login as root account into the server.
  2. Backup the /etc/sudoers config file. # cp -p /etc/sudoers /etc/sudoers.ORIG.
  3. Edit the /etc/sudoers config file. # visudo -f /etc/sudoers. From:
  4. Then save the file.
  5. Please do the same to other user account in sudo.

Why do I always have to use sudo?

If users want a root account password, they have to set it up manually to use “sudo.” Using sudo is a good way to protect the user’s computer from being used as a tool for exploitation. Whenever a user tries to install, remove or change any piece of software, he has to have the root privileges to perform such tasks.

How do I list admin users in Linux?

List Users on Linux. In order to list users on Linux, you have to execute the “cat” command on the “/etc/passwd” file. When executing this command, you will be presented with the list of users currently available on your system.

How do I delete user?

To delete a user, type user accounts in the search bar on the Start menu and click on “User Accounts” listed at the beginning of the list of results. Then, click the “Manage another account” link on the Make changes to your user account screen.