The point is, that a Linux system can include hundreds of users (if necessary). Although you wouldn't want this, a Linux server can handle 4,294,967,294 concurrent and distinct users.

How to create a restricted group and add users on a Linux server The first thing we must do is create a new group and add users to it. Create the group with: sudo groupadd restricted ...

If you administer a Linux server, you likely will have to create users and groups. You will be limited in a few crucial ways without knowing how to create users. First off, new users cannot be ...