VPS server, in other words, Virtual Private Server is a Virtual server. So basically if you still have a shared hosting, you and someone else can have a website running on the same server, but each of you has his own virtual server that is private for you and you are accessing it as the root user. It’s like a virtual machine you can install on your computer and the Dedicated Server is obviously the top of the line of hosting servers; it is a private server which you can customize to your likes starting from an operating system of your choice to hardware and performances. This is generally expensive and is usually for websites that require specific customizations.
Now, the question is VPS or Dedicated Hosting? The differences can be grouped as follows:Big Difference:VPS provides a personal control panel, custom IP address, CPU and RAM quota which improvises on websites performance. It also gives root level access giving the freedom to install or delete any software, setting permissions and creating any number of sub-accounts. At times, depending on the provider, there could be some restrictions on certain resources as it would disrupt other clients (websites) functioning.In Dedicated Servers provide control over the entire server right from choosing the OS, adding layers of security, installing custom software and the options are never ending making this one of the major reasons of a having a dedicated server. Unlike VPS, there are meager restrictions on a dedicated server.All resources like RAM, hard disk, network access, processors are all 100% dedicated to one single client unlike VPS where only a portion of resources are given to a client.User Control:
Absolute user control, one of the major features of a dedicated server is, it is generally fully under the control of the customer and VPS though is completely customizable according to user needs but providers have limits in terms of resource allocation.Additional software Installation:
Private Hosting can be completely customized in terms of the software. Customized software installations can be very important for a number of reasons, but even if the software is away from shelf, not all VPS providers allow their customers to install and run additional software. In fact, may not always give total control of their virtual modules to their customers. In specific, private servers are usually able to run anything that their hardware supports.Hardware Resources:
Dedicated hardware is an important feature of dedicated hosting. VPS solutions divide the resources of a single computer, but dedicated servers put all of the resources at the disposal of a single customer. Hard drive storage capacity, Memory, processing power, and network access are all fully dedicated to a single customer. Unlike private servers in VPS they are shared among multiple customers. Hence performance should be very predictable, which is very important if hosting an e-commerce site or monetizing website(s).Rate of Scalability:
Scalability of VPS is higher than dedicated servers. If a steady hardware performance and ultimate control of software is essential, then dedicated servers are probably a wise choice.Flexibility:Disk array used for storage in the VPS are many in numbers as well as redundant. They can handle a lot more input and output than an average private server. The investment would be huge with private servers to get the same performance and redundancy as with VPS, flexibility is slightly more from this point of view as resources can be upgraded or downgraded anytime with VPS. This is also cost saving.
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