Dedicated Servers: Usages and Benefits

Image via Wikipedia About Dedicated/Private Servers

Dedicated Servers or Managed Dedicated Servers is a type of Internet Hosting where the client leases an entire Server not shared with anyone. This is more flexible than Shared Hosting, as organizations have full control over the server(s), including choice of operating system, hardware, etc.

Dedicated Severs usually are used for extensive Web Sites which serve too many online visitors at once. Mail Servers, Virtual Universities or extensive ECommerce Web Sites are samples of Dedicated Server usages.Dedicated Servers provide huge Web Space and BandWidth.

If server is physically located in administration area of Web Site, it is called Co-Location Server.
When a physical Server is devided to multiple Virtual Servers we will have several Virtual Private Servers(VPS). These Servers can provide greater control and performance than a Shared Hosting account. They come with exactly the same features, autonomy and functionality of a Dedicated Server, and are suitable for a wide range of tasks such as application testing/development, Domain and Hosting Resellery, high traffic Web Sites or game serving.

Dedicated Hosting Service
The user gets his or her own Web server and gains full control over it (root access for Linux/administrator access for Windows); However, the user typically does not own the server.
If the server is administered in users' location, its called Co-Location Server.
Suitable For:

• High Traffic WebSites

• Database-intense Web Sites

• Online Products Seller Sites

Virtual Private Server(VPS)
Slicing up a server into virtual servers. Each user feels like they're on their own dedicated server, but they're actually sharing a server with many other users. A Virtual Private Server (VPS) offers a more stable, secure, and flexible hosting environment than a Shared Hosting Service .
Suitable For:

• Resell hosting services

• Email Services

• Small eCommerce Websites

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What Is The Internet Proxy Server

Image via Wikipedia The Internet proxy server is the server that is situated between the client application and an actual server. The Internet proxy server has the role of intercepting every request to the actual server and see if the request can be fulfilled by it. If that is not possible, then it must forward the request to the other server.

If used in an enterprise the Internet proxy server besides the role that it plays in all situations, also have the role of ensuring control and security. This Internet proxy server is linked to a gateway server. This has the role of separating the network of the enterprise from other networks. The Internet proxy server is also associated with a firewall server that is used to protect the network of the enterprise from any intrusions from the outside.

The Internet proxy server receives requests from web pages or any other Internet services from the user. Then if the filtering requirements are passed, the Internet proxy server checks its cache for other downloaded pages( this assuming that the Internet proxy server is a cache server as well ). If the web pages that are required are then found by the Internet proxy server, they are returned to the user. In this case there is no need for the Internet proxy server to forward the request. In case the page can not be found in the cache, then the Internet proxy server must act as a client as thus use its own IP address to request the web page from other servers that are found on the Internet. When the required page is then returned, the Internet proxy server reports it to the initial request and then it is forwarded to the user.

In the users eye, the Internet proxy server seems to be invisible. This is because the request and the response are so quick that the user is under the impression that they are made directly with the Internet server that was addressed. However, this is not the case and the Internet proxy server actually plays a very important part.

There are two main reasons why Internet proxy servers are used. One is to improve the performance and the second to filter the requests. The Internet proxy server can improve the performance for users, because the Internet proxy server actually saves all the requests that the user has made, thus making Internet operations a lot faster. The second reason why Internet proxy servers are used is to filter requests. This operation might be seen in schools or workplaces, where the employees are not allowed to visit certain web sites. This can be very easily done by configuring the Internet proxy server that is used.

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