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jesus perez There are really three types of users on a typical Unix system :

Administrative Users
Accounts like bin, lp and uccp own files such as the standard commands in /bin, print spool files and UUCP data. Actually logging in with one of these accounts is not normally allowed - they are used only by various system processes. These users will be created when the operating system is first installed.
Real People
These are accounts owned by real users, created by the system administrator. You may allow these users to login remotely, or maybe let them only to send and receive mail via SMTP and POP3.
The root User
The root user has the power to read and write any file or directory and control any process. This account is typically used for system administration purposes, and is the account under which Webmin runs.

At the top of the main page of this module is a table of existing users on your system. You may click on a user to edit it, or click on the link below the table to create a new user.

Introduction to Groups

A group is simply a list of Unix users. Every user has belongs to at least one group (their primary group), and optionally several others. All files are owned by some group, and every process runs with the permissions of a group.

Below the list of users is a table of existing groups. You may click on a group name to edit it, or click on the link below the table to create a new group.

Recorded Logins

Every time a user logs in by telnet, FTP or at the console the system records that login and the subsequent logout. At the bottom of the main page is a small form that allows you to display logins either by everyone, or by a selected user.

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