Virtual Private Servers (VPS) Web Hosting


A Virtual Private Server (VPS), also referred to as Virtual Dedicated Server (VDS), provides the features of a dedicated server for multiple web hosting customers to share. At first instance it sounds contradictory, how can you have a dedicated server if it is being shared by multiple users? Isn’t that a regular shared or virtual hosting environment? It is true that with a Virtual Private Server you still share system resources like the CPU and RAM with other users but the resources are allocated in such a way that you cannot tell that the system has anyone else on it, much like a dedicated server. So resources are usually setup in such a way that each hosting client is only allowed to use an allocated percent, meaning that resources assigned to you will always available to you.

Advantages of Virtual Private Server (VPS) web hosting

Most hosting customers would rather have complete control of their server environments. They don’t want to be hosted on a server with tens or hundreds of other users, who could easily use up all the resources or cause the server environment to be unstable. But at the same time most websites don’t need a dedicated server. The Virtual Private Server (VPS) alternative is a very attractive niche hosting solution for a fairly large chunk of web hosting clients who would like the stability of a dedicated server but on a smaller scale. With the resources setup in such a way that each person can only use what is allocated to them, your site will be more consistent because it will always have the same amount of access to the CPU, memory, and bandwidth. Virtual Private Servers are also more secure since even as you share the memory and CPU time, you are allocated your own file system. If a website on the server is hacked, the hackers will only have access to that particular file system and would not harm the other websites. A VPS is also much cheaper than a dedicated server.

Disadvantages of Virtual Private Server (VPS) web hosting

Now that you have read the pros of a VPS you are probably thinking that this is the best thing since sliced bread. Well, almost – as is the case with every other type of hosting service, not all providers setup or define Virtual Private Servers, also known as Virtual Dedicated Servers, the exact same way. You must make sure that your provider guarantees that their setup is robust enough to handle operations at a peak level. A trick used by many providers in the reselling and shared space is ‘overselling’. What this means is selling more in terms of services than what physically available, with the hope that the end users wouldn’t use up all the service that were advertised to them. In the realm of VPS this can be a bit more serious, since at least the expectation is that you are operating in a more robust environment and many clients could be running more intensive applications like message boards or custom web applications. A shortfall of resources could end up causing problems for everyone hosted on such a server, therefore negating the benefits of a VPS. In a shared or dedicated environment you might be able to access more resources during peak or spike periods but since the VPS environment limits you to to your slice of the server resources, it can be a drawback.

As if the technology rich lingo of regular web hosting wasn’t enough, the VPS services add a few new wrinkles. Apart from storage space and bandwidth you must also deal with CPU cycles and RAM. So you will see ads for hosting that might include *** MHz and *** MB RAM to go with the usual hosting related features. It is somewhat harder to figure out how much CPU time or RAM you might need, so seek out a hosting provider that will provide you with some benchmarks and the ability to upgrade or downgrade the VPS service if needed.

Type of Web Hosting


A service web hosting is a type of Internet hosting service that allows individuals and organizations to make their website accessible via the World Wide Web. Web hosts are companies that provide space on a server owned or leased for use by clients, as well as providing Internet connectivity, typically in a data center. Web hosts can also provide data center space and connectivity to the Internet for other servers located in their data center, called colocation.

The most basic is web page and small-scale file hosting, where files can be uploaded via File Transfer Protocol (FTP) or a Web interface. The files are usually delivered to the Web with minimal processing. Many Internet service providers (ISPs) offer this service free to subscribers. Individuals and organizations may also obtain Web page hosting from alternative service providers. Personal web site hosting is typically free, advertisement-sponsored, or inexpensive. Business web site hosting often has a higher expense.

Types of service hosting

Free hosting service: offered by different companies with limited services, sometimes supported by advertisements, and often limited when compared to paid hosting.
Shared web hosting service: one’s website is placed on the same server as many other sites, ranging from a few to hundreds or thousands. Typically, all domains may share a common pool of server resources, such as RAM and the CPU.

Reseller web hosting: allows clients to become web hosts themselves. Resellers could function, for individual domains, under any combination of these listed types of hosting, depending on who they are affiliated with as a reseller. Resellers’ accounts may vary tremendously in size: they may have their own virtual dedicated server to a colocated server.

Virtual Dedicated Server: also known as a Virtual Private Server (VPS), divides server resources into virtual servers, where resources can be allocated in a way that does not directly reflect the underlying hardware. VPS will often be allocated resources based on a one server to many VPSs relationship, however virtualization may be done for a number of reasons, including the ability to move a VPS container between servers.

Dedicated hosting service: the user gets his or her own Web server and gains full control over it however, the user typically does not own the server. Another type of Dedicated hosting is Self-Managed or Unmanaged. This is usually the least expensive for dedicated plans. The user has full administrative access to the server, which means the client is responsible for the security and maintenance of his own dedicated server.

Cloud hosting : is a new type of hosting platform that allows customers powerful, scalable and reliable hosting based on clustered load-balanced servers and utility billing. A cloud hosted website may be more reliable than alternatives since other computers in the cloud can compensate when a single piece of hardware goes down. Also, local power disruptions or even natural disasters are less problematic for cloud hosted sites, as cloud hosting is decentralized.

Clustered hosting service: having multiple servers hosting the same content for better resource utilization. Clustered Servers are a perfect solution for high-availability dedicated hosting, or creating a scalable web hosting solution. A cluster may separate web serving from database hosting capability.

Grid hosting service: this form of distributed hosting is when a server cluster acts like a grid and is composed of multiple nodes.

Apart from these service hosting there are other service hosting like managed service hosting, File

hosting service: hosts files, not web pages, Image hosting service, Video hosting service, Blog hosting service, Shopping cart software, E-mail hosting service etc.

Web hosting service is often provided as part of a general Internet access plan; there are many free and paid providers offering these types of web hosting.

Dedicated Web Hosting


Every kind of hosting have it mean whether it is dedicated or shared or any other kind of When you have one single web server is rented to a single customer by the web hosting provider, you have dedicated web hosting. There are two similar solutions quite common too in the web hosting industry: virtual dedicated servers and co-location web hosting.

Apart of this Co-locating web hosting also shares some similarities with dedicated web hosting. The main difference is that while in dedicated web hosting the web server computer belongs to the web-hosting provider and is only rented by the customer, in co-locating web hosting the customer owns the web server computer. The web-hosting provider only houses the web server computer and sells bandwidth to the customer.

Dedicated web hosting is the ideal solution for businesses that work with high traffic. The functionalities of your web site as well as the application required for its operation will fall under your precise control. so you can select a proper dedicated hosting plan.

VIRTUAL DEDICATED SERVER


The term virtual server refers to a number of distinct technologies. Here we examine the type of virtual server known as the Virtual Private Server (VPS), otherwise called a Virtual Dedicated Server (VDS). This type of virtual server is a method of dividing a single server machine into multiple servers by employing virtual machines. Each virtual server has its own operating system and server administrators can reboot and operate on them independently.

Data centers have financial and physical limitations. VPSs overcome some of these limitations by reducing the physical footprint and achieving cost effectiveness through consolidation. Shared server solutions are an alternative to a VPS that also help to overcome these limitations. The advantages and disadvantages of a VPS contrasted against a shared server solution.

The core advantages of a VPS are cost, independence, insulation, performance and security. A VPS essentially provides all of the benefits of operating one server per machine and insulation, in a virtual way, provides the same boundaries that exist between servers in separate machines. This limits the disadvantages that the system introduces. It also allows performance to be higher because there are no bottlenecks introduced from the coordination of resources. In addition, there is no threat of a compromised server influencing any of the other servers on its machine.

One of the core disadvantages of a VPS is the ability to adapt to load. During periods of high traffic, a server in a shared environment can borrow the resources of its fellow servers in order to handle the additional load. In general, VPSs and one server per machine environments are more wasteful than shared solutions. Resources often go unused and the data center must account for far greater resources than they would use in a shared scenario due to individual peak levels.

The term is used for emphasizing that the virtual machine, although running in software on the same physical computer as other customers’ virtual machines, is in many respects functionally equivalent to a separate physical computer, is dedicated to the individual customer’s needs, has the privacy of a separate physical computer, and can be configured to run server software.

Virtual dedicated server (VDS) is also used as synonyms of VPS. However, the latter also occasionally indicates that the server does not use burst/shared RAM through multiple machines and may use individual CPU cores. The term cloud server is also used to describe the same concept, normally where such systems can be setup and re-configured on the fly.

Virtual dedicated servers offer many of the capabilities and features of dedicated servers, including admin (root) access and dedicated IP addresses, but at a much lower price. However, as a virtual dedicated server is, indeed, virtually dedicated, the customer in fact shares the server space with a small number of other customers. But because each virtual dedicated server is effectively isolated from other accounts on the server, the user has full control over the server space. As well, virtual dedicated server plans feature very high performance and available disk space and bandwidth.

Virtual dedicated servers are particularly useful for companies and individuals that run higher-traffic Web sites or complex applications and thus need the bandwidth, consistent performance, and flexibility of a virtual dedicated server.

Virtual Dedicated Server (VDS) Technology is a new technology based on the concept of partitions on mainframes and advanced resource scheduling to divide a computer into many virtually isolated servers. A VDS simply put is, a server that runs inside another server. Each VDS acts like a dedicated server but shares the same hardware.

VDS technology completely isolates each VDS, creating a more secure and reliable hosting environment. Each VDS has its own isolated disk space, guaranteed network interface bandwidth, guaranteed CPU allocation, RAM and operating system. If a VDS on the same physical server crashes, the other accounts on the server are protected and remain unaffected. It is not possible for any account to use up the entire RAM, disk space, network bandwidth, CPU cycles, or any other resources of the Hosting Server. Neither is it possible for one account to view/edit the files of any other account.

The VDS allows small Internet providers to set up their individual hosting application while avoiding them extra costs relating to the hosting platform and a need to worry about the server operation.