This implies that the user mumbly is part of the group mumbly, but no longer part of the group sudo. If mumbly has abused the access, you can deny the access:Ä®nter the command sudo gpasswd -d mumbly sudo.Ĭonfirm mumbly no longer has access with groups mumbly and the system displays the following: mumbly : mumbly You can also remove sudo rights with gpasswd. To confirm, enter groups mumbly and the system displays the following: mumbly : mumbly sudo Unlike the similar command su, users must, by default, supply their own password for authentication, rather than the password of the target user. To grant sudo rights to the user âmumblyâ using gpasswd:Ä®nter the command sudo gpasswd -a mumbly sudo.Ä®nter the password when prompted, and a confirmation appears: password for dreadbaron: This implies that the user mumbly is part of the group mumbly and the group sudo. This post will show you how to create a new sudo user on Ubuntu 18.04 or 20.04.2.0 without having to change the /etc/sudoers file on your server. To grant sudo rights to the user mumbly using usermod:Ä®nter the command sudo usermod -aG sudo "mumbly"Ī confirmation does not appear, so enter groups mumbly and the system displays an output similar to the following: mumbly : mumbly sudo Make sure to give the user their password.Īfter the user is created, use one of the following methods to give them access to sudo or add them in the sudoers file.Enter sudo passwd mumbly and provide the password when prompted and a new password for the user: password for dreadbaron:.Enter sudo useradd -m mumbly (the -m switch creates a home directory).In all these cases, the user needs to exist already. There are numerous ways to do this through the command line, the last being the most in-depth, but also the one giving a system administrator more granular control over what permissions a user has. To specify a uid instead of a user name, use uid. The user now has administrative and sudo rights. u user The -u (user) option causes sudo to run the specified command as a user other than root. Open the Settings window by clicking on the downwards arrow in the upper-right and choosing Settings. In addition, we can add NOPASSWD to the line, so that wonât have to enter the password. Weâll replace with the actual user. This will give full sudo privileges to . Next, weâll add this line at the end of the file: ALL (ALL) ALL.If you arenât comfortable using the CLI and have access to a graphical desktop environment, this is the easiest option. This will open up an editor on the command line. Granting sudo Rights Through the Desktop Environment If you want to explore options for /etc/sudoers further, see the sudoers manual. Linode suggests the following methods to grant access to users. As a general rule, editing /etc/sudoers should be to adjust permissions for the sudo group, not to give permissions to individual users. These restrictions are defined in the file located at /etc/sudoers and should only be done by those who are familiar with the administrative tasks. Adding User Rights Through the sudoers FileĪdvanced users may want to restrict what can be done with sudo. If youâre not familiar with the sudo command, see the Users and Groups guide. Commands that require elevated privileges are prefixed with sudo. Now, user is created and we will add new user to sudo group to grant sudo access.This guide is written for a non-root user. Changing the user information for demouserÄ®nter the new value, or press ENTER for the defaultÄ«y default on Ubuntu machine, members of the sudo group are granted with sudo access. These are optional questions so If you want to leave all of this information blank just press ENTER to accept the defaults. After that it will prompt to enter new userâs information. Once you set password it will make a directory for a new user and make copy necessary configuration files. Ĭreating home directory `/home/demouser'. Īdding new user `demouser' (1001) with group `demouser'. Itâs recommended to set a strong password with combination of alphanumeric and special characters. Only Ubuntu users that are members of the sudo group are able to become root user like this. Enter the password of your Ubuntu user when requested. You will be prompted to set new password and retype the new user password. To become root user from an unprivileged (normal user account) account when there is no root password set, use this command: sudo -s. The sudo command is designed to allow users to run programs with the security privileges of another user, by default the root user.
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