Web server?/Application server?/Database server?
K-Sato

K-Sato @k_penguin_sato

About: Software Engineer

Joined:
Nov 14, 2018

Web server?/Application server?/Database server?

Publish Date: Feb 27 '19
25 30

In this post, I will break down three main servers that are used for web-applications which are web server, application server and database server.

What is a web server

A Web server is a program that uses HTTP (Hypertext Transfer Protocol) to serve the static files to users, in response to their requests.

What is Web server? - Definition from WhatIs.com

If a web server gets a request to serve a static HTML, CSS of Javascript file, it just returns the requested file.

But what happens if a web server gets a request that has to be processed dynamically?

That's when an application servers comes in.

Nginx and Apache are very well known and widely used web server softwares.

What is an application server?

An application server is a server program in a computer in a distributed network that provides the business logic for an application program.

What is application server? - Definition from WhatIs.com

It is the server your application is actually run on. An application server is not restricted to HTTP and is able to do a bunch of other stuff.

When an application server gets a request from the web server, it tells your application about it and your application dose what it's told to do.

If you are famillier with Ruby on Rails, you have probably heard of Unicorn, Rainbows, and Puma. They are very widely used application server softwares for rails applications.

What is a databse server?

A database server is a computer system that provides other computers with services related to accessing and retrieving data from a database.

What is a Database Server?

Basically, it is very self-explanatory.

A database server holds the Database Management System (DBMS) and the databases. It searches the database for selected records and passes them back over the network.

References

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    Understanding the roles of web, application, and database servers is crucial for any developer. Think of it like Fnaf the web server is Freddy, presenting the interface; the application server is Bonnie, processing logic behind the scenes; and the database server is Chica, storing all the valuable data. Each plays a vital, distinct role in ensuring the entire system runs smoothly. Without understanding them, your whole system may be messed up like the whole Fnaf game.

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    Music LaterMay 30, 2025

    This is a great and simple explanation of web, application, and database servers! Super helpful for beginners like me who are trying to wrap their heads around these concepts. Thanks for breaking it down!

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    Lenson EmmaAug 4, 2025

    Wow, this was a really clear and concise breakdown of the different server types! I especially appreciated the explanation of how web servers hand off dynamic requests to application servers. It's kind of like learning anything new, really – you get the basic concept down, then you gotta dive into the specifics and practice. It reminds me of playing Doodle Baseball, actually. You think you've got the timing down, swing, and whiff! But you adjust, learn from the miss, and try again. Eventually you connect! Thanks for the helpful article!

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    Lenson EmmaAug 4, 2025

    I've always found the different types of servers a bit confusing, but you explained it so clearly. It's kind of like learning a new skill – you don't always get it right away. I'm reminded of playing doodle baseball, haha. You gotta time your swing perfectly, and even then you might strike out. But each time you play, you learn a bit more about the timing, and eventually you start hitting home runs. Same with understanding this stuff – practice and repetition make perfect! Thanks for the post!

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