[ Thanks to Falko
Timme for this link. ]
“Linux-VServer allows you to create virtual private servers and
security contexts which operate like a normal Linux server, but
allow many independent servers to be run simultaneously in one box
at full speed. All services, such as ssh, mail, Web, and databases,
can be started on such a VPS, without modification, just like on
any real server. Each virtual server has its own user account
database and root password and doesn’t interfere with other virtual
servers…”