![]() However, since using Sudo can have major consequences, Sudo requires some extra authentication: you need to type your password again, sometimes. In principle, it can rely on the system's authentication mechanism: if you can run commands as bruno, it means you've already authenticated as bruno. In order to apply this rule, Sudo needs to know that the user invoking it is indeed bruno. In the sudoers file allows the user bruno to execute any command with any privilege. Its job is to determine whether you are allowed to execute a command with elevated privileges, and if you are, to execute that command. Sudo is primarily a tool for authorization. ![]() This is an illustration of the difference between authentication and authorization. ![]()
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