What is VPS? All you should know about Virtual Private Server

The use of VPS services is considered one of the excellent solutions to help optimize operating costs for users. So what exactly is VPS? In which cases should this solution be used? All of these things will be shared and analyzed more thoroughly by Vcloudia in the article below. 

What is VPS? 

VPS (Virtual Private Server) is a virtual private server developed based on a physical server. A physical server will be divided into multiple virtual servers with similar functions to a private server. Resources will be shared from the original physical server and used privately, so they will not be affected by other users sharing the server. 

Operating principles of a VPS virtual private server 

A VPS virtual private server is responsible for storing the necessary files and databases for a website. Whenever an online customer wants to access your Website, their browser will send a request to the server, and then it will transfer the necessary files over the Internet. A VPS hosting service provides users with a virtual server that simulates a physical server. 

VPS is isolated from other server users at the operating system level. In fact, a VPS is similar to creating partitions on your own computer when you want to run more than one operating system (such as Windows and Linux) without restarting. 

Running a VPS allows users to set up their website in a secure container with guaranteed resources (memory, disk space, CPU cores,...) without having to share with other users. VPS hosting service gives you the same access as owning a dedicated server, but at a much more optimized cost. 

Pros and cons of VPS 

Advantages of VPS 

- The setup time for VPS servers is very fast, it only takes about 5 minutes for you to complete the installation and be able to use the VPS. 

- High security, safe for users. 

- Can use the server independently. 

- Cheap cost, helping to effectively optimize the budget for users. 

- You can manage the server remotely, as long as you have a device that can connect to the Internet. 

- Backup and transfer data easily. 

- Can make the most of resources effectively. 

For example, if you are running a server on the Windows operating system, and you suddenly have new demands, which require you to run an additional server on the Linux operating system. With VPS, you can easily buy a new Linux server, without having to invest in a second server system, which costs a lot of money. 

Disadvantages of VPS 

- All activities of the VPS server depend on the original physical server. This leads to an inconvenience that if the physical server encounters an issue, the VPS servers will also be affected. Therefore, you should rent VPS services from reputable providers to minimize this situation. 

- The productivity of a VPS server may not be as desired, because the configuration may not be as good as dedicated physical servers. 

When should a VPS virtual private server be used? 

Hosting a multi-service Website 

Those who administer systems for sales Websites, e-commerce Websites, or websites with high traffic,... all of them know what a VPS is. Because these systems will need a stable hosting server system and to be able to focus more when investing in their products regarding capital. 

When learning carefully about what a VPS is, you will see that choosing this form of virtual server rental to be able to maximize savings on investment costs for servers, management staff, Data Center construction locations... while still having a powerful server system to use. Surely for most businesses that are still financially limited, understanding and grasping the concept of what a VPS is is extremely necessary. 

Platform Development 

Developing a Platform such as an operating system, or applications on an operating system, requires a place for centralized storage. A typical example is the common apps today that you are still using on your phone. Therefore, at this time, understanding what a VPS is and deploying this solution will help bring extremely great benefits to users. 

Game Development 

There are game investors and developers but with limited budgets. Meanwhile, each new, hot game often attracts a lot of traffic every day. Therefore, the server system they need must have tremendous capacity and processing capabilities. Renting a VPS is considered one of the best solutions for these businessmen to invest in their game products. Therefore, if you clearly understand what a VPS is, do not foolishly ignore the extremely wonderful applications it brings. 

Some parameters to note when buying a VPS virtual server 

Currently, there are many virtual server service providers on the market, and you need to know some basic parameters to be able to buy the best service at the most appropriate price. 

RAM 

In a computer, RAM is the main type of memory, if your VPS server has more RAM, the data retrieval capability is better, because when using a VPS you will need RAM to handle issues such as processing PHP code snippets with PHP software, processing input and output queries of the database with MySQL, accompanying small applications, supporting reading and writing data,... so this parameter is very important. 

VPS virtual server services will allow you to choose a RAM level from 512MB to 16GB (if you see any VPS with more than 16GB of RAM, that is a Cloud VPS, currently this service is being provided quite a lot in Cambodia, such as the Cloud Server service of Vcloudia), and depending on the traffic to your website as well as how to optimize the VPS, you can know whether you need a lot or just a little RAM. 

For example, you need 1GB of RAM to use WordPress comfortably, or if you are proficient in VPS, you only need 512MB to run well with traffic of about 5000 visits/day and 100 online users at the same time. 

SWAP 

Although you almost never use SWAP resources, it is better to know. 

SWAP is understood as a virtual memory to save old processing actions if your RAM memory is full (overloaded). SWAP itself is a storage space on the hard drive, not an independent memory. But not all VPS support SWAP, only XenVPS virtual servers support SWAP. 

Disk 

Disk (hard disk drive/hard drive), this storage space is used to store the installation files of the operating system and the source code files of the website stored on it. 

There are 2 types of disks: 

- HDD (Hard Disk Drive): Is the most common type of disk still used on computers. 

- SSD (Solid State Drive): SSD or solid-state drive, is a type of hard drive used to store data but the data retrieval speed is 300 times faster than HDD. For example, testing an HDD drive has a retrieval speed of only about 80mb/s, but an SSD has a speed of more than 400mb/s. 

Usually, a VPS with an SSD will be more expensive than the HDD type. 

CPU Core 

CPU Core means the processing core of the CPU. A dedicated server has a certain amount of cores and it is divided among the VPS. Usually, the higher the number of cores, the better the data processing capability. 

In average virtual server packages, you will get to choose from 1 core to 3 cores. 

Bandwidth/transfer 

This is the traffic allowed to transmit data. For example, if you have a 1GB file on a VPS, for every 1 person downloading, you will lose 1GB of bandwidth, similarly with other types of files such as images, CSS, JS... 

IP 

IP stands for Internet Protocol, which is the number of IP addresses that the VPS service provider will grant you. The ranges of IP addresses will be randomly selected by the provider. 

Normally, if you choose to buy many different IPs, those IP ranges will share class A and B. For example: 192.168.1.1/192.168.1.2/192.168/1./3 

Is Cloud Server a perfect replacement product for VPS? 

Cloud Server is a flexible and powerful virtual server solution, configured from multiple physical servers and SAN storage systems, bringing high customization capability and outstanding performance, which can perfectly replace VPS. Regarding Cloud Server, customers do not need to equip too much extensive knowledge about virtual servers but can still easily use and operate it. 

In particular, all components on a Cloud Server are set up with redundancy to ensure continuous and uninterrupted operation. At the same time, the Cloud Server is also operated on a cluster server, so in case a server is not active, the cluster automatically redirects to the remaining server. This will minimize the interruption status of the system like VPS (deployed on a physical server).