Server is to support a variety of current Internet applications, "the hero behind the scenes", the core of a variety of Internet applications is the acquisition of resources, although there are many types of resources, but these resources without exception need to be carried through a variety of servers, involving storage, computing, security, load and so on. If you think of the network as the "blood vessels" in a person's body, then the servers are the organs that synthesize the blood and provide various nutrients for the blood.
In the current era of cloud computing, a large number of network services are based on a distributed structure, and the so-called distributed concept usually refers to the encapsulation of different functions into different components, and then deployed on different servers, so as to provide services to users. Due to the current network users more and more, and a variety of services are also increasingly heavy, so the server's own architecture is also constantly expanding and upgrading, from server clusters to distributed clusters, and then to the use of virtualization technology of cloud computing, are constantly improving the server's service capabilities, to provide users with a better experience of using network services.
From a technical point of view, servers provide two basic services for various applications, namely storage and computing. In the era of big data, the type of data stored on the server is also constantly being expanded, from the early structured data gradually to semi-structured data and unstructured data coverage, which also led to a series of storage technology updates, such as the current NoSql database is proposed for this change.
Based on the two major services of storage and computing, the current servers are also more refined in function, such as directory servers, storage servers, authentication servers, etc. These servers will carry a variety of different network service requirements. With the continuous development of the network, the role of the future server will continue to be strengthened, and the application boundary will continue to expand.