What is a virtual private server and xmpp server?

Article Written By: aprseo@gmail.com

Virtual private server (VPS) is the term used in the web hosting industry to refer to a virtual machine. Virtual private servers are similar in some ways to dedicated servers and are similar in other ways to shared servers. In a VPS service, the client feels that he/she is allocated a separate server for his/her website.

The client is provided with a separate operating system and he/she can install any software that is permitted by the operating system. The client is also allocated separate resources such as CPU time and bandwidth. These are the ways in which VPS hosting is similar to dedicated servers.

In reality the client s operating system is stored in the same server as many other VPS operating systems (of other clients). In other words, the client actually shares a single server with other VPS clients; similar to shared hosting. The difference between shared hosting and VPS hosting is that the client is allocated separate software and other such non-physical resources in VPS hosting. The functionality of the client s operating system is not at all influenced by the presence of other operating systems.

VPS severs typically cost more than shared hosting, but is less expensive than dedicated servers. Some types of software will not function properly in a VPS operating environment. Such software includes anti-virus software and firewalls. The web hosting provider may also place additional restrictions, but usually such restrictions are more lenient than the restrictions placed on shared hosting. The number of VPS clients who can share one machine is limited by the resources available in that machine (including processor speed and RAM).

Xmpp stands for Extensible Messaging and Presence Protocol. It was earlier known as the 'Jabber . The main purpose of xmpp is to provide extensible instant messaging (IM). It is also used for contact list maintenance and presence information. Although it was not originally present, xmpp has been extended to support new features such as Voice Over Internet and File transfer.

When compared to other IM protocols, the specialty in xmpp is that it is an open systems protocol. This means that one xmpp service can be incorporated with other organizations services. Both the software and most other additional applications are available for free download.

Xmpp uses a decentralized approach. This means that any person can implement and maintain their xmpp server; there is no central server controlling the whole network. There are many security features implemented. Xmpp servers can be isolated from the public network. This is useful for running an intranet service.

Client-server approach is used in xmpp to facilitate communication. In this approach, any two clients will not be able to communicate directly with each other, but will have to communicate through a server. However, unlike some chat services, there is no centralized server controlling all communications.

About the Author

HOSTV offers virtual private servers, Virtual private servers and xmpp server at affordable prices.

You Can Link Directly to "What is a virtual private server and xmpp server?" by using the url:
http://www.allbestarticles.com//internet/web-hosting/what-is-a-virtual-private-server-and-xmpp-server.html

This Article Has Been Published on Mon, 22 Nov 2010 and Read 237 Times

Find All Best Articles at http://www.allbestarticles.com

Rating: Not yet rated

Comments

No comments posted.

Add Comment

You do not have permission to comment. If you log in, you may be able to comment.

Related information on Web Hosting

The Major Categories of Web Hosting Services in India
Why You May Want An Enterprise Hosting Plan For Your Online Business
Introduction to Secure Web Hosting Packages
Website Hosting - How To Find a Reliable Web Host
Why Use the Best Web Host for Your Website?
Multiple Domain Hosting Solution
Cheap Web Hosting is Better than Quality Web Hosting?
Earning Money Online With Reseller Hosting
Enhancing Business Efficiency With SharePoint Hosting
How Will You Benefit By Availing Affordable Web Hosting Services
Web Hosting: What to Look for When Choosing a Web Hosting Provider
Understanding and Choosing Business Web Hosting Services
VPS Hosting Your Own Dedicated Server
Criteria to choose a VPS provider
The Advantages of Cloud Computing
Business Growth with Cloud Servers
Types Of Operating Systems That Function On Cloud Server Software
Understanding Web Hosting
Learn The Web Hosting Services Benefits
Why Managed Servers Are Better Than The Rest
Why Choose Dedicated Managed Server Hosting
Server Hosting - Know More About The Managed Hosting Advantage
Server Hosting For Every Online Business
Server Colocation Hosting Or Other Hosting Options and Which To Choose
A Guide to Managed Dedicated Server Hosting and Its Benefits