User manual

Appendix F

182

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, 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. Apache can now differentiate

among target virtual sites according to the name requested. Many

virtual sites on the RaQ 3 can share one IP. Not all services are

compatible with name-based virtual hosting. SSL encryption for web

data and an anonymous FTP account can only be enabled on one virtual

site per IP address hosted by the RaQ 3.

The IP address of the RaQ 3 can be shared by many virtual sites or it can

be unique to one virtual site.

The RaQ 3 has one main site (which by default cannot be deleted) and

virtual sites. The main site uses the IP address assigned to the RaQ 3

using the LCD console.

Wide area network (WAN)

A data communications network that serves users across a broad

geographic area and often uses transmission devices provided by

common carriers. Asynchronous transfer mode (ATM), frame relay,

Switched Multimegabit Data Service (SMDS) and X.25 are examples of

WANs.