What file is used to configure sudoers users?

The file that is used to configure sudoers users is the /etc/sudoers file. This file contains the privileges and settings that define which users have the ability to execute commands as a different user, typically as root. The correct format and syntax must be adhered to in this file, as improper configuration can lead to security issues or lock users out of sudo access entirely.

It is crucial to modify the /etc/sudoers file using the visudo command, which provides syntax checking and helps prevent mistakes that could result in an unusable configuration.

Other options listed do not correspond to the standard location for the sudoers file. The /usr/local/sudoers path does not exist in standard Linux distributions and may mislead users to believe that there is an alternative configuration path. The /var/sudoers and /etc/security/sudoers are likewise not standard locations for configuring sudoers, as they are not recognized by the sudo system for such configurations.