Virtual Server

A Virtual Server in Virtualmin means a combination of a system user, a home directory, a VirtualHost in Apache, a set of entries in the virtual map database in Postfix, an administrative account in Webmin, a database and database user in MySQL and/or PostgreSQL, and all of the necessary records in BIND.

Virtual Server Owner or Virtual Server Account

The system and Webmin user that owns the Virtual Server. This use is usually named the first part of the domain name of the Virtual Server, but this can be altered during creation. e.g. Here at Virtualmin.com, our virtual server owner account is named virtualmin.

Usermin

Usermin is the default webmail component of the Virtualmin stack of applications. It runs on port 20000 and uses the HTTPS secure protocol. In addition to reading and composing mail, Usermin allows mailbox users to change their own password, configure mail forwarding, auto-responders, and aliases, and optionally manage databases and upload files.

Webmin

Webmin is the base upon which Virtualmin is built. It is a general purpose system administration tool that runs on the majority of UNIX-based operating systems. It is Open Source, and is the most popular tool of its kind world-wide.