185 lines
4.4 KiB
HTML
185 lines
4.4 KiB
HTML
|
<HTML
|
||
|
><HEAD
|
||
|
><TITLE
|
||
|
>What is a Virtual Web Site?</TITLE
|
||
|
><META
|
||
|
NAME="GENERATOR"
|
||
|
CONTENT="Modular DocBook HTML Stylesheet Version 1.63
|
||
|
"><LINK
|
||
|
REL="HOME"
|
||
|
TITLE="Virtual Web mini-HOWTO"
|
||
|
HREF="index.html"><LINK
|
||
|
REL="PREVIOUS"
|
||
|
TITLE="License"
|
||
|
HREF="license.html"><LINK
|
||
|
REL="NEXT"
|
||
|
TITLE="What Software and Software Patches Do I Need?"
|
||
|
HREF="patches.html"></HEAD
|
||
|
><BODY
|
||
|
CLASS="SECT1"
|
||
|
BGCOLOR="#FFFFFF"
|
||
|
TEXT="#000000"
|
||
|
LINK="#0000FF"
|
||
|
VLINK="#840084"
|
||
|
ALINK="#0000FF"
|
||
|
><DIV
|
||
|
CLASS="NAVHEADER"
|
||
|
><TABLE
|
||
|
WIDTH="100%"
|
||
|
BORDER="0"
|
||
|
CELLPADDING="0"
|
||
|
CELLSPACING="0"
|
||
|
><TR
|
||
|
><TH
|
||
|
COLSPAN="3"
|
||
|
ALIGN="center"
|
||
|
>Virtual Web mini-HOWTO</TH
|
||
|
></TR
|
||
|
><TR
|
||
|
><TD
|
||
|
WIDTH="10%"
|
||
|
ALIGN="left"
|
||
|
VALIGN="bottom"
|
||
|
><A
|
||
|
HREF="license.html"
|
||
|
>Prev</A
|
||
|
></TD
|
||
|
><TD
|
||
|
WIDTH="80%"
|
||
|
ALIGN="center"
|
||
|
VALIGN="bottom"
|
||
|
></TD
|
||
|
><TD
|
||
|
WIDTH="10%"
|
||
|
ALIGN="right"
|
||
|
VALIGN="bottom"
|
||
|
><A
|
||
|
HREF="patches.html"
|
||
|
>Next</A
|
||
|
></TD
|
||
|
></TR
|
||
|
></TABLE
|
||
|
><HR
|
||
|
ALIGN="LEFT"
|
||
|
WIDTH="100%"></DIV
|
||
|
><DIV
|
||
|
CLASS="SECT1"
|
||
|
><H1
|
||
|
CLASS="SECT1"
|
||
|
><A
|
||
|
NAME="WHATIS"
|
||
|
>2. What is a Virtual Web Site?</A
|
||
|
></H1
|
||
|
><P
|
||
|
> A World Wide Web (WWW) Server is normally a single machine dedicated to
|
||
|
processing HTTP requests for a single WWW site. Simply put, one WWW site
|
||
|
per machine. Since the computing resources for processing httpd requests is
|
||
|
low for most WWW sites, the majority of the computing resources are left
|
||
|
unused. A virtual WWW site simple allows more than one WWW site to share a
|
||
|
single processor. Instead of having www.domain1.com and www.domain2.com
|
||
|
requiring two physical computing devices, www.domain1.com and
|
||
|
www.domain2.com can be located on a single computing device and share common
|
||
|
resources.
|
||
|
</P
|
||
|
><P
|
||
|
> Normally small computing facilities, and small businesses do not have the
|
||
|
resources to maintain a dedicated web server and a dedicated Internet
|
||
|
connection. These cost can easily start off at $10K for setup, and
|
||
|
$500-2500 monthly to maintain. Small computing facilities, and small
|
||
|
businesses are now able to "rent" WWW space from a Virtual WWW providers.
|
||
|
The customer can then maintain the WWW "pages" using a local telnet and/or
|
||
|
FTP connection.
|
||
|
</P
|
||
|
><P
|
||
|
> WWW providers such as InfoCom Networks http://www.infocom.net/
|
||
|
provide WWW space as low as $75 per month. A few Virtual Sites
|
||
|
might clear up the mystery. So the cost of setting up a WWW site is
|
||
|
significantly lower than that of setting up a dedicated server and
|
||
|
connection. The Virtual Site has a major advantage over other WWW
|
||
|
addressing schemes such as "www.yourprovider.com/~businessname". The
|
||
|
Virtual WWW server inherently contains the ability to move to a new location
|
||
|
or setup a dedicated WWW server without changing addresses. Changing WWW
|
||
|
URL's can result in a major loss of traffic to your site, and lots of
|
||
|
business literature updates.
|
||
|
</P
|
||
|
><P
|
||
|
> With most web sites, www.domain1.com and www.domain2.com both resolve to
|
||
|
separate IP's. In order to accept multiple request from a single host, the
|
||
|
virtual host must be able to answer request for both sites. The method used
|
||
|
to solve this problem is called IP aliasing. IP aliasing allows a single
|
||
|
host to accept request for multiple IP's. The virtual Web server must have
|
||
|
the ability to alias IP's
|
||
|
</P
|
||
|
><P
|
||
|
> IP aliasing is just one part of the virtual solution. The Domain Name System
|
||
|
(DNS) also must be configured to resolve both www.domain1.com and
|
||
|
www.domain2.com. If domain1.com and domain2.com are new domains, then both
|
||
|
must be registered with Internic. Currently, Internic is charging $50 a year
|
||
|
to maintain your domain.
|
||
|
</P
|
||
|
><P
|
||
|
> Most virtual WWW sites should also provide virtual mail, or the ability to
|
||
|
forward all mail to the virtual domain to another user or users.
|
||
|
</P
|
||
|
><P
|
||
|
> Virtual FTP or the ability to FTP using the standard host name
|
||
|
"ftp.domain1.com" should also be configured by the WWW provider.
|
||
|
</P
|
||
|
></DIV
|
||
|
><DIV
|
||
|
CLASS="NAVFOOTER"
|
||
|
><HR
|
||
|
ALIGN="LEFT"
|
||
|
WIDTH="100%"><TABLE
|
||
|
WIDTH="100%"
|
||
|
BORDER="0"
|
||
|
CELLPADDING="0"
|
||
|
CELLSPACING="0"
|
||
|
><TR
|
||
|
><TD
|
||
|
WIDTH="33%"
|
||
|
ALIGN="left"
|
||
|
VALIGN="top"
|
||
|
><A
|
||
|
HREF="license.html"
|
||
|
>Prev</A
|
||
|
></TD
|
||
|
><TD
|
||
|
WIDTH="34%"
|
||
|
ALIGN="center"
|
||
|
VALIGN="top"
|
||
|
><A
|
||
|
HREF="index.html"
|
||
|
>Home</A
|
||
|
></TD
|
||
|
><TD
|
||
|
WIDTH="33%"
|
||
|
ALIGN="right"
|
||
|
VALIGN="top"
|
||
|
><A
|
||
|
HREF="patches.html"
|
||
|
>Next</A
|
||
|
></TD
|
||
|
></TR
|
||
|
><TR
|
||
|
><TD
|
||
|
WIDTH="33%"
|
||
|
ALIGN="left"
|
||
|
VALIGN="top"
|
||
|
>License</TD
|
||
|
><TD
|
||
|
WIDTH="34%"
|
||
|
ALIGN="center"
|
||
|
VALIGN="top"
|
||
|
> </TD
|
||
|
><TD
|
||
|
WIDTH="33%"
|
||
|
ALIGN="right"
|
||
|
VALIGN="top"
|
||
|
>What Software and Software Patches Do I Need?</TD
|
||
|
></TR
|
||
|
></TABLE
|
||
|
></DIV
|
||
|
></BODY
|
||
|
></HTML
|
||
|
>
|