Servers are a system or a computer that offers data, services, resources, or programs to a client computer via a network. In general, when a computer shares any type of resources with client computers then they’re termed as servers. Different types of servers include mail, virtual, and web servers.
Most importantly, a computer can use and share resources at the same time which means it can act as a client and server at the same time.
On a network connection, a server needs to be configured to receive requests from client computers. Companies use operating systems such as Microsoft Windows operating system as role, installed application, or combination of both. The operating system helps server computers in receiving and responding to client’s requests.
Therefore, when a client computer requires resources, it requests resources from the server over the network. Then, it receives a request and responds to the request with the right information. This is often called a client-server network or request and response network.
File servers are dedicated to distribute and store files. Several clients can share files that are stored on a server computer. For integrity and security, the client-server connection makes it easy for you to make backup or fault tolerance solutions. These are meant to improve your network performance by maximizing read and write speeds.
Print servers help client computers to perform printing requests rather than attaching a printer to every workstation. Numerous clients can make multiple printing requests, similarly, a print can respond to as many as print requests.
Application servers use to operate applications to help client computers in increasing performance. These servers are dedicated to hosting resource intensive applications that are shared by most users. These terminate the need for client computers to acquire resources for operating special applications.
Domain Name System (DNS) servers are application that convert the human-readable name into machine-readable IP addresses to provide name resolution to client computers. When a client requires the address of the particular system, it requests the DNS system with resource name, and then the DNS responds with the system IP address.
Mail server is yet another type of application to receive emails sent to users and then store them. Mail remove the need of setting up a new email subsystem for every client machine to send and receive messages.
Web servers are considered one of the most abundant types. A web server is a type of application that stores data requested by users over the internet. Client computers request resources from the web servers via an internet browser. Some common types include Apache web, Nginx, and Microsoft Internet Information Services (IIS) servers.