Web Servers and Their Functions

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Web Servers and Their Functions

Web Servers- The development of technology today makes people aware of the importance of technology and try to understand it. One of the things you need to learn is web server technology.

Everyone certainly often uses a browser when browsing the internet. So what does the web server have to do with the browser? In short, the browser you use often acts as a client. The browser will send various requests to the web server. That’s one of the relationships. Then what is the web server like?

Understanding Web Servers

In this modern era, it is not complete if you are not familiar with web servers. Especially if you are going to wrestle in the IT field. Must know! This is the technical understanding of a web server.

A web server is software (software) that provides services in the form of data. Serves to receive HTTP or HTTPS requests from clients or we are familiar with web browsers (Chrome, Firefox). Then he will send a response to the request to the client in the form of a web page.

How did you start to understand? In essence, a web server is a service provider for clients, where clients request information in the form of a website.

In addition, you must know that the web server is one of the user’s needs too, you know. Why? Because the web server has a large storage capacity and fast access. So that it can prevent errors on a website or application.

Main Functions Of Web Servers

As explained above, this technology functions to accept HTTP or HTTPS requests from clients, or we are familiar with web browsers (Chrome, Firefox). It will also send a response to a request to the client in the form of a web page which is generally HTML.

If we talk in detail, then the Web Server has a role in processing various data requested by the client (web browser). Then he gives results or answers in the form of documents, videos, photos, or various other forms of files.

As for we break it down into several parts of the function of the web server:

  1. Clean up various caches in storage as well as all documents that are no longer used.
  2. Checking the security system originating from HTTP requests based on client requests or web browsers.
  3. Provide data based on incoming requests or requests in order to ensure system security that runs smoothly.

The HTTP and HTTPS protocols are used by the web server to communicate with clients. With HTTP and HTTPS protocols, communication between servers and clients can be interconnected and can be understood easily.

Types of Web Servers

As a programmer, you must also know the types and examples of commonly used web servers. Here are some types of web servers as follows.

1. Apache Web Server

The web server that is popular and most widely used by most people is the Apache type. Initially, Apache was designed to fully support the UNIX operating system. Apart from being quite easy to implement, Apache also has several supporting programs that provide complete services, such as PHP, SSI, and access control. Here are the details:

PHP (Personal Home Page or PHP Hypertext Processor)

Programs such as CGI, function to process text that works on the server. Apache strongly supports PHP by placing it as one of its modules (mod_php). This makes PHP work better.

SSI (Server Side Include)

Commands that can be included in the former HTML. Then it can be processed by the web server when the user accesses it.

Access Control

Can perform access control by host name or CGI (Common Gateway Interface) IP number. Then the most common to use is Perl (Practical Extraction and Report Language), supported by Apache by placing it as a module (mod_perl).

Apache is very safe and comfortable to use because it has several advantages such as an easy installation process, freeware, and a relatively easy configuration system. In addition, it is also able to work on open or closed source operating systems.

2. Nginx Web Server

Nginx is well-known for its capacity to handle a wide range of requests, including those with high traffic density. In terms of quality, speed, and performance, Nginx is undeniably superior.
In terms of features, Nginx has several advantages, including URL rewriting, virtual hosts, file serving, reverse proxying, access control, and many more.

3. IIS Web Server

An IIS (Internet Information Services) web server is a web server that works on various types of protocols such as DNS, TCP/IP, or other software that is useful for compiling a site.

4. Lighttpd Web Server

German programmers have created a web server based on open source to support Linux and Unix systems. When viewed in terms of advantages, this one web server has several advantages based on the additional features available. Such as FastCGI, Output-Compression, FastCGI, and URL Writing. If you use the Lighttpd web server, you will experience faster and more effective performance.


The web server has an important role in controlling the work process of a website. Without a web server, you cannot request any data on a page or page browser.