User manual

Approaches to RaQ 4 administration
Cobalt RaQ 4 User Manual 35
Definition of a virtual site
Whereas industry uses the term virtual host , Cobalt Networks uses the term
virtual site .
In Cobalt’s definition, a virtual site consists of a Domain Name System (DNS)
domain with Web, FTP and email services. Each virtual site contains its own list
of site-user accounts. Each site-user account has its own Web page,
FTP directory, email spool and any number of email aliases. The fully qualified
domain name of a virtual site is unique to that site, while its IP address can be
shared by many sites.
With the advent of name-based virtual hosting, it is no longer necessary to
dedicate an IP address to a virtual site. The Web server can now differentiate
among target virtual sites according to the name requested. Many virtual sites on
the RaQ 4 can share one IP address. Not all services are compatible with
name-based virtual hosting: SSL encryption for Web data, bandwidth
management and an anonymous FTP account can only be enabled on one
name-based virtual site per IP address hosted by the RaQ 4.
The IP address of the RaQ 4 can be shared by many virtual sites or it can be
unique to one virtual site.
The RaQ 4 has one main site (which cannot be deleted) and virtual sites. The
main site uses the IP address assigned to the RaQ 4 using the LCD console.
On the Server Management screen, the main site is listed in the Virtual Sites
List table; the trashcan icon in the fourth column for the main site is grayed-out
(disabled), as this site cannot be deleted from the list of virtual sites. The options
and features available on a virtual site can also be configured for the main site.