![]() ![]() The screenshot below shows the default sudoers file contents on Ubuntu 20.04. Before going any further, it is essential to familiarize yourself with the sudoers file default contents and sections. The sudoers file lives in the /etc/sudoers, a plain text file containing the policies on what privileges a user gains when executing the sudo command. Related: How to Install Ubuntu 20.04 The Linux Sudoers File Overview This guide uses a Ubuntu 20.04 system, but any other Linux distribution should also work. ![]() If you’d like to follow along, be sure you have a Linux system with a regular user account that you can use. This tutorial will be a hands-on demonstration. Don’t go anywhere get ready to take your Linux user privileges management to the next level! Prerequisites You will also learn some best practices to keep in mind when working with sudoers. This guide will teach you how to edit the sudoers and give users elevated privileges securely. Don’t let that discourage you! With patience and attention to detail, anyone can learn to manage the sudoers file effectively. The sudoers file is primarily for system administrators to manage and can be a bit daunting for newcomers. This incident will be reported.Not seeing the video? Make sure your ad blocker is disabled. You can test your new sudo rights by changing your password for example $ sudo passwd IV – Most Common Errors Make sure that your user is part of the designed group with the groups command. To add a group to the sudoers file, simply add a percent symbol at the beginning of the file. In this case, you simply have to add a user to the system administrators group for him/her to be granted sudo privileges. This might be handy if you have a group for system administrators for example. Via the visudo, you can add an entire group to the sudoers. # See the man page for details on how to write a sudoers file.ĭefaults secure_path = /sbin:/bin:/usr/sbin:/usr/binĭefaults timestamp_timeout=30 III – Adding a group to the sudoers file # This file MUST be edited with the 'visudo' command as root. If you want the password verification to be skipped for longer periods of time, you can overwrite the timestamp_timeout (in minutes) parameter in your sudoers file. However, if you want to remove this password verification, you can set the NOPASSWD option. john ALL=(ALL:ALL) ALLīy default, the account password will be asked every five minutes to perform sudo operations. $ sudo visudoĪt the end of the file, add a new line for the user. Instead, you are going to use visudo, a tool designed to make sure you don’t do any mistakes. Saving a bad sudoers may leave you with the impossibility of getting sudo rights ever again. However, you should never modify the sudoers file with a text editor. ![]() This file contains a set of rules that are applied to determine who has sudo rights on a system, which commands they can execute with sudo privileges, and if they should be prompted a password or not. The sudoers file is located at /etc/sudoers. II – Adding an existing user to the sudoers file Otherwise, the default admin account is the one you created during the installation process. If you chose a password for your root account, you will be able to connect to it. ![]() You should now be able to perform a sudo request on Debian 10.ĭepending on the configuration you chose during your Debian 10 installation process, you may or may not have access to a root account. Make sure that the user belongs to the sudo group with the groups command. You can also use the gpasswd command to grand sudo rights. To do that, you are going to use the “usermod” command with the capital G flag (for groups) $ sudo usermod -a -G sudo user The first method is to add the user to the sudo group. If it’s not the case, you can install it by running (with an account with admin rights) $ apt-get update I – Adding an existing user to the sudo groupĪs a prerequisites, make sure that the sudo command is available by default. III – Adding a group to the sudoers file.II – Adding an existing user to the sudoers file.I – Adding an existing user to the sudo group. ![]()
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