At first, it was home servers. If you wanted to start a website, it was best to start your own server. Then came the professionalization of the Internet. Hosting companies from all over the world allowed to hire servers in any continent or region of the planet. Today, many of those servers are not real. We are talking about cloud servers. But let’s go in parts.
Today there is a lot of talk about cloud computing, in English. In Spanish, it is cloud computing. And its short definition serves as a synonym: cloud services, cloud computing … In practice, it is about obtaining the same thing that a physical, home, or server computer would give you, but through the Internet. And over time, many of us have become familiar with this type of technology calling their clouds.
Clouds can be public, private, or a mixture of both. And we see its usefulness in our day today. The great moment of the cloud came with the arrival of services such as Dropbox, Google Drive, Box, and a long etcetera. There are many and varied companies that offer space in the cloud to store your files. They have even specialized in specific content such as photos and videos.
But we also find the cloud in almost every application we use. From email to online games, from listening to music to watching online videos. Much of the services we currently use on the Internet require the cloud to function. And the level of professionalization of the cloud is such that today you can hire virtual servers, what we know as cloud servers.
What are Cloud Servers?
So much talking about cloud and cloud can easily lead us to confusion or misunderstanding. Especially because it is not easy to determine where one begins and another ends or what the infrastructure behind the mobile application that we use daily is like.
When we want to hire a server in a hosting company, we find several types and that, due to their name and characteristics, may seem the same to us. Today, we usually come across three types: dedicated servers, cloud servers, and virtual servers.
The first are those of a lifetime. A physical machine located on the premises of the company that offers its hosting and associated services. From a distance, you can access that server and upload your private data, set up a web page, or launch cloud support for your web application or mobile application.
The second step in evolution was virtual servers. Known as virtual servers or VPS (Virtual Private Server), it is a physical server, a machine divided into several parts or instances that act as virtual environments independent of each other. Each environment acts as a server and can serve the same purpose as a classic server. Of course, the hardware is shared, so it is cheaper.
The next step came with cloud servers, a more modern version of virtual servers and which, in practice, are virtual machines hosted on physical servers. With a single server, we obtain several cloud servers, independent and more secure thanks to the characteristics of the virtual machines.
The Cloud Servers allow hiring the necessary resources and expand as you need more power or capacity of processing or storage. Being based on virtual machines, it is more secure and watertight drives. And being basically software, they are easy to start up and backup copies can be made on different physical servers, thus avoiding crashes or operational problems.
Security in Cloud Servers
One of the things that advocates of cloud servers stand out most is that they are more secure than physical servers. We assume that 100% security does not exist, but we can always get closer to that figure.
The servers cloud have features that help make them safer. To begin with, virtual machines are a technology that we have been using for decades for tasks related to testing software or running delicate applications or code in a secure environment. The virtual machine acts as a sealed box isolated from the physical machine that houses it.