![]() UAC is like sudo, where you only escalate privileges when you need to, and at other times, you stay put with limited access. So unless you really need to, there’s no point in using the root account. And that’s more than enough to give you an idea of how devastating root access in the wrong hands can be. As a root user, you can perform rm -rf / and delete the entire system without any obstacles. You can do this using sudo -i or becoming root the old fashioned way su. If you use root as your user regularly, you’ll be exposing yourself to the risk of giving a malicious application full access to your system. In Ubuntu you need to add the user only to the group sudo. This is exactly why we need sudo and root users to be different. With UAC, most applications run with limited access and only when a system file needs to be modified, Windows prompts the user asking for permission. The fact that any software running under the user has full privileges to perform any action on the system. User Access Control (UAC) was introduced in Windows because staying logged in as an Administrator posed a very obvious security risk. In Windows, we’re used to logging into the administrator account and using things directly as an administrator. Addition of sudo User via the Terminal At first, you have to create a whole new user using the adduser command. ![]() This is a common question among new users who’ve been using Windows and have recently switched to Linux. You now know both the ways of adding users to sudoers! Great job. Now when the user logs in for the first time after this new group is added, they’ll get a message like the one below notifying them of the change in privileges. The sudoers file is typically located at ‘ /etc/sudoers‘. The sudoers file defines a list of rules that specify what commands a user can run and as what user, and also controls the level of access they have to the system. The sudoers file is a configuration file in Unix-based operating systems, including Ubuntu, that determines which users or groups have the permission to use the sudo command to perform privileged tasks. In this article we will explore how to grant sudo privileges to a user or a group of users. This way, users can still perform system-level tasks without the risks associated with being logged in as the root user. Instead, it uses a feature called sudo, which allows authorized users to perform administrative tasks without logging in as root. Especially in an enterprise setup this would mean disaster. Most of the Linux Distributions don’t allow ‘root’ user also known as superuser by default as a security measure to prevent accidental or intentional changes that could harm the system.
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