Many people have heard of the term server. In technical terms, a server is a device or computer program that receives and responds to a request from another program, a client. Imagine that you have to eat and that therefore you have to go to the refrigerator to get food. In this case, the refrigerator is your server where you can store all the food (files) and you are the customer who wants to request the food (information).
The server provides information to the computers connected to it. Clients can connect to the server through a local area network (LAN) or a wide area network (WAN), such as the Internet. There they can then access programs, files and other data. To function as a server, the device must be configured to listen for requests from clients connected to the network. This feature can exist as an operational part of the system, as an installed program, a feature, or a combination of both. There are many different sizes of servers, ranging from Supermicro servers to gigantic server halls that take up entire buildings.
When a client requests data or functions from a server, it sends a request over the network. The server that receives it responds by providing the relevant information. It is a model of client-server network requests (“calls”) and replies. The server often performs a number of additional tasks: verifying the listener’s identity, making sure that the client has permission to access the requested data or resources, and properly composing or returning the requested response at the expected time. time of day.
Do you need a lot of server resources when executing an online project? Click here to take advantage of reliable and flexible professional web hosting services from an experienced provider.
What types of servers are available?
There are many servers, each with different functions. Most networks have one or more common server types:
Files: These servers store and distribute files. They can be shared by multiple clients or users. Storing files centrally also makes backup or fault tolerance easier than trying to ensure the security and integrity of every device in an organization. File Server Hardware can be designed to maximize read and write speeds to improve performance. Applications: Such servers run applications instead of the client computers they run on. Application servers often run resource-intensive applications that are used by many users. As a result, not every client needs to have sufficient resources to run the application. In addition, the software does not need to be installed and maintained on many machines, but only on one. Domain Name System (DNS): These are application servers that take care of naming client computers by converting human-readable names into machine-readable IP addresses. The DNS system is a distributed database of names and other DNS servers, each of which can be used to query an unknown computer name. When a client needs a system address, it sends a DNS query with the desired resource name to the DNS server, which responds by providing the desired IP address from its name table. Mail: This is a very common type of application server. Mail servers receive e-mail messages that are sent to the user. E-mail messages will be kept until the customer requests it on behalf of the said user. With such a server, a single machine can always be properly configured and connected to the network. It is then ready to send and receive messages instead of having each client machine constantly running its own email.
And these are just a few examples of the most popular servers . Many of them are now common, i.e. they can be responsible for email as well as DNS, FTP (File Transfer Protocol) and even host multiple websites if it is a web server.
Because of the large server resources, regular hosting is not always sufficient. In this case, professional web hosting is very helpful. If this is also relevant to you, you should choose a company that takes full care of server maintenance, security and the necessary infrastructure.
A server can be compared to a hotel.
Do you find it difficult to understand what a server is with all those technical terms? No problem. We try to explain it as simply as possible!
When we wait our turn at the hotel reception, we can start thinking about how our entire IT hotel works. We could think about how a hotel is run, what the hotel staff’s routines are, what resources are needed and so on. After all, it takes a well-developed infrastructure to manage a network of so many hotel rooms. Translated to the IT world, you, the visitor, are the customer and the hotel room or website you want to visit is managed by a server (or servers). You can think of the server as a more powerful computer than the one with which the client has to surf, and which often performs several tasks at once.
The server can be said to be a host computer and, like a hotel host, takes care of its guests or clients, as it is called in IT language. Server programs run on a server, which are simply computer programs designed to operate other programs, such as email management and WWW sites. In the context of a hotel, this means that the hotel service offers space to all hotel guests. It is then up to the owners of the rooms to furnish their rooms as they see fit, depending on how they have built their websites.