Virtual web hosting refers to the process of running multiple "virtual" web servers on a single physical host computer. Using this technique, a single computer can host thousands of independent web sites. Commercial web hosting service providers often use this technique to allow better manageability, efficiency and scalability of their service infrastructure.
Most virtual web hosting applications rely on virtual DNS resolution, so that a specific domain name (such as a customer's own registered domain name) may be associated with each independent virtual web server. This can be achieved through either name-based or IP-based virtual web hosting. These techniques are explained below.
Monday, January 4, 2010
What is name-based web hosting?
Name-based web hosting is a technique that can be used when providing virtual web hosting services. Each web site that is hosted on a single machine shares a single public IP address. All HTTP GET requests received by this web server are answered according to the domain name supplied by the requesting client, enabling the web server to differentiate between multiple virtual sites on the one IP address.
What is IP-based web hosting?
IP-based hosting is a technique that can be used when providing virtual web hosting services. Each web site that is hosted on a single machine is given its own separate public IP address. The HTTP GET requests are resolved by using the IP address instead of the name.
Operating system limitations may also limit the maximum number of IP addresses that can be assigned to a single machine, especially if separate log files are used.
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Operating system limitations may also limit the maximum number of IP addresses that can be assigned to a single machine, especially if separate log files are used.
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Can browsers that are only HTTP/1.0 compliant view websites that are hosted by a name-based virtual hosting system?
Browsers that are HTTP/1.0 compliant can view websites that are hosted by name if their version of the browser issues requests with an additional Host header field. (This is a required header in HTTP/1.1, but all current HTTP/1.0 browsers also issue this header)
The justification of browsers not being HTTP1.0 compliant is not sufficient to warrant large scale IP-based hosting. Statistics collected by APNIC over a four month period show that almost all browsers visiting www.apnic.net provide the Host: header field (98.9% of HTTP1.0 and 99.8% HTTP1.1).
The justification of browsers not being HTTP1.0 compliant is not sufficient to warrant large scale IP-based hosting. Statistics collected by APNIC over a four month period show that almost all browsers visiting www.apnic.net provide the Host: header field (98.9% of HTTP1.0 and 99.8% HTTP1.1).
Friday, December 11, 2009
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Reseller Plans
Dedicated Servers
Java Hosting
Domain Registration
LIMITED TIME OFFER:2 Life Time FREE DOMAIN NAMES!
6 Months of FREE Business Web & Email HOSTING!
FREE Web Builder w/ 500+ templates!
Unlimited Sites, Disk Space & Bandwidth
PHP, ASP.NET, JSP, Perl, Python, Ruby
$50+ Google/Yahoo PPC Credits
50+ Free One-Click Install Scripts
24/7 Award Winning Support
30 Days Money Back Guarantee
home | contact | terms & conditions | privacy note
Copyright 2002-2009 MochaHost.com. All Rights Reserved
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