Pengertian Web Server

Summary

This video explains the concept of a web server, detailing its role as a software that processes client requests to access websites via HTTP or HTTPS protocols. The server delivers content such as text, images, and videos in response to these requests. The video also covers the functionality of web servers, the process behind how they work, and the popular software used, such as Apache, Nginx, and LiteSpeed. It also explains how errors, such as '404 Page Not Found,' can occur when the requested content is missing from the server's database.

Takeaways

• 😀 Web server is a software or program in a server that processes requests from clients and responds with website content like HTML or PHP.
• 😀 The web server isn't the website itself; it's a tool that hosts and serves the website's files.
• 😀 The primary function of a web server is to process various files requested by clients and respond with the website's content.
• 😀 Web servers use protocols such as HTTP and HTTPS to communicate with clients and deliver website content.
• 😀 HTTPS is a more secure version of HTTP, ensuring encrypted data transfer between the server and client.
• 😀 When you access a website, your browser sends a request via the internet to the web server, which then retrieves the data from its database if available.
• 😀 If the requested data is not found, the web server returns an error message, like '404 Not Found'.
• 😀 Web servers can be thought of as intermediaries that handle requests, retrieve data from databases, and present content to the user.
• 😀 Examples of popular web server software include Apache, Nginx, Lighttpd, and LiteSpeed.
• 😀 Apache HTTP Server is one of the most commonly used web server applications, known for its versatility and configurability.

Q & A

What is the definition of a web server?

A web server is software that runs on a server and responds to client requests through HTTP or HTTPS protocols. It serves web pages or content, such as HTML or PHP documents, to clients using a web browser.

What is the primary function of a web server?

The primary function of a web server is to process incoming client requests and serve various web content, such as text, images, videos, or documents, over the internet or a network.

How does a web server differ from a website?

A web server is not a website itself, but rather the software that hosts and serves the website's content. The website consists of web pages that are delivered by the web server to the client's browser.

What are the main protocols used by a web server to communicate with a client?

Web servers primarily use HTTP (Hypertext Transfer Protocol) or HTTPS (HTTP Secure) protocols to communicate with clients, with HTTPS offering added security through encryption.

What is the difference between HTTP and HTTPS?

HTTP is the standard protocol used to transmit data between the client and server, while HTTPS is a secure version of HTTP that uses encryption to protect the data being transferred, making it more secure.

What happens when a client makes a request to a web server?

When a client makes a request, such as accessing a website, the browser sends the request over the internet to the web server. The server checks for the requested content, and if available, it returns the content to the client. If not found, it may return an error, like '404 Not Found'.

What is the role of a web server in processing data from a database?

The web server acts as an intermediary between the client and the database. When a request involves data stored in a database, the server retrieves the data from the database and sends it back to the client.

What happens if a requested page is not found on the web server?

If a requested page is not found, the web server typically returns an error message, such as '404 Not Found', indicating that the resource is unavailable.

What are some common web server applications?

Some common web server applications include Apache, Nginx, Lighttpd, and LiteSpeed. These applications are widely used to host and serve web content across the internet.

Which web server application is most commonly used?

Apache HTTP Server is one of the most popular and widely used web server applications worldwide.