Shulou(Shulou.com)06/03 Report--

1 What is a server?

A server is a high-performance computer in a network environment that listens for service requests submitted by other computers (clients) on the network and provides the corresponding services.

Its high performance is mainly reflected in high speed computing power, long-term reliable operation, strong external data throughput and so on.

The server is like a stepping stone, it is the necessary carrier to open the website, and the website users without the server cannot browse.

For example, building a website requires a web server; running a game requires a game server; building a live broadcast platform requires a streaming media server; building a database requires a database server; building an ERP system requires an ERP server.

2. Difference between Physical Server and Cloud Virtual Machine

The physical server is basically similar to the microcomputer, with processors, hard disks, memories, system buses, etc. They are specially formulated for specific network applications and are independent servers.

It is similar to a general purpose computer architecture, but because of the need to provide highly reliable services, it requires high processing power, stability, reliability, security, scalability, manageability, etc.

physical server

The opposite is the Cloud Virtual Machine. Cloud Virtual Machine is a simple, efficient, secure and reliable computing service with Auto Scaling processing capability.

It is easier and more efficient to manage than physical servers. Users can quickly create or release any number of Cloud Virtual Machine without having to purchase hardware in advance.

Advantages of Cloud Virtual Machine: 1. Technical: Cloud Virtual Machine uses cloud computing technology, which integrates various software and hardware technologies such as computing, network and storage. Physical servers, on the other hand, are independent and do not consolidate these resources.

2. Security: Cloud Virtual Machine has natural anti-ARP attack and MAC spoofing, snapshot backup, and permanent data loss. Physical servers do not have this capability.

3. Reliability: Cloud Virtual Machine is based on server cluster, so hardware redundancy is high and failure rate is low; while physical server has relatively less hardware redundancy and high failure rate.

Flexibility: Users can add their own configuration online in real time, and the expandable space is large; while physical servers have limitations in this regard, if there are new applications, they can only buy one more.

5. Computability: Cloud Virtual Machine is 4 times the computing capacity of independent server with the same configuration, which can meet the requirements of high performance computing;

6. Stability: Cloud Virtual Machine can automatically migrate after failure, which means that if a Cloud Virtual Machine fails, its applications will automatically migrate to other Cloud Virtual Machine.

7, security: high security is one of its major advantages, cloud service providers support professional security technology, security team, monitoring mechanism, and have long-term experience in security protection work. Websites or applications placed on Cloud Virtual Machine are less likely to suffer ddos attacks and data breaches. If it is sensitive business, additional cloud security services such as security guards can be added to achieve tighter security protection.

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