They are the most powerful, flexible and widely used open source software that delivers content over the internet or on the web, such as Apache. These software keep files like HTML in memory when the server actually makes any similar request with the client website domain, we call it cache; it also works as a delivery man by delivering content that is served as apache.
Most importantly of all, it supports particularly strong multiple operating systems such as Linux, Windows, Solaris, macOS as well as more similar, including Apache or any other web servers. For this reason, you can easily turn a computer into a server that hosts multiple websites and is in domian, and you can use it by taking quick action.
In general terms; The Apache HTTP server allows the installation of modules with extensive and similar support for software and application integration. So how set up an apache web server This article is ported after an apache HTTP or https on Linux. You need to complete the installation and configuration of this server in detail.
Step 1: Install Apache Server on Linux
Actually you have to start with the first event tell; Before starting the Apache installation, the main purpose is to update the Linux package database from the official repositories, because the initial database should be clean. Actually this method is your role to take a necessary step to the packages which helps to avoid any security vulnerabilities and includes the latest features. That's why cleaning is good. Actually you have to start with the first event tell; Before starting the Apache installation, the main purpose is to
from the official repositories, because the initial database should be clean. Actually this method is your role to take a necessary step to the packages which helps to avoid any security vulnerabilities and includes the latest features. That's why cleaning is good.
We have updated the system pool list for you and you can update it and you can start installing Apache using the following commands:
About Ubuntu and Debian:

On CentOS:

On Fedora:

To install Apache on Arch Linux, run:

Step 2: Verify Apache Service Status
In fact, the Apache service starts automatically in Debian-based distributions. To access the server's landing page, you can go to the browser and enter your IP address with local IP or VPN. In this case, if you are not sure of the address of your server, you should run the function -i with the hostname to print the details.

Output:

The page confirms successful installation:


Alternatively, run the following command to verify the installation:

Output:

If you're running CentOS, the service won't start automatically. You can start the service manually by executing the command:

Check the service status, as below:

Step 3: Configure Firewall to Allow Apache Server Access
Another final mandatory step in Apache configuration is the UFW firewall on Linux, you should best protect it and allow traffic to reach the server via the default port 80. In fact, it is more correct to say, or to make him accept it. With no problems during installation, the service registers with the firewall with some application profiles and this secures your firewall. The list of application profiles is always helpful to enable/disable Apache access.
Use the following command to list all Apache application profiles:

Output:

The available profiles represent:
1. Apache: Only opens port 80 to enable unencrypted communication over the internet
2. Apache Full: Opens both ports 80 and 443 for unencrypted and secure communication
3. Apache Secure: Enables secure server access via HTTPS by allowing traffic on port 443
Since we don't have SSL/TLS enabled for the server, we will allow UFW access on only port 80 as follows:

Now check the firewall status by running:


Step 4: Understand Apache Directories and Files
By default, you can think of it as a piece of code. Or the directory contains the web page you saw earlier. Apache creates and allows you to create different subdirectories in this folder to host your multiple websites.
In Ubuntu system and Debian-based distributions, I would like to share the main configuration directory of Apache server with you, while /etc/apache2 is /etc/httpd for CentOS. Actually for this reason all the configuration files of the server are located in these directories. Like areas that need attention. For example, some of the most known files/directories are as follows:
- /var/log/apache2/error.log: Logs all the errors encountered
- /var/log/apache2/access.log: Logs all the access requests made to the server
- /etc/apache2/sites-available: Directory that contains virtual hosts
- /etc/apache2/sites-enabled: Stores ready to serve websites per virtual host. It cannot work without linking the configuration file inside the sites-available directory using the a2ensite command.
An Example to Set Up a Virtual Host
To sum things up, Apache server installation is similar to a default codec URL in all Linux distributions; Creates the /var/www/html directory. This directory actually contains all the files of your website, but it doesn't work if you want to host multiple websites on the same server, for your information guys.
You can use the virtual hosts you need to serve multiple domains. You can create a domain directory like the one below in the /var/www folder, in fact, it will be healthy for you to create it.

You have to change the ownership and file permissions of the directory using chown. Now do this with this command:

Actually Now let's get into the finer details: You have to open the file /var/www/host_example/html/content.html in your favorite editor and then copy/paste the following HTML:

Apache functions as a storage location containing the registry of computer or virtual hosts and also creates a configuration folder. You should pay attention to this detail. The default configuration file is /etc/apache2/sites-available/000-default.conf which means it has a lot of benefits. However, you can create a new file based on your domain name. Did you know that or if you copy/paste the config block in the default file you will be able to.
Please edit the file with a text editor of your choice because it is error free and start updating with your domain name and new directory as follows: Please edit the file with a text editor of your choice because it is error free and start updating with your domain name and new directory as follows:

Activate Your Domain Configuration File
The domain configuration file host_example.conf activation requires the use of a2ensite.

We can show the above output, please in brackets the default config file (000-default.conf) will show the requirements to disable it:

Now you have to restart the apache service to upload the changes:

Go to the browser and navigate to the domain name to check if it is serving your website:

Test for Configuration Errors
In this case, the apache2ctl utility: It allows you to check for any errors, such as or similar, for the Apache server. To verify a successful and error-free configuration, the following command should return the same : Syntax OK output:

Output:

Hosting Multiple Websites on Linux Servers Using Apache
In fact, in the tutorial above, we wanted to offer you the modularity and ease of installing and configuring an Apache server. The integrity of these images shows the installation. The versatility of the server allows you to sometimes configure setup and hosting websites according to your needs. The use case of its installation on your virtual host shows how it works and interacts in configuration files.
In computer operating systems; You may have also noticed that the properties/folders may change depending on your Linux distribution and Apache version. Finally, there are Apache administration commands to manage, start or reinstall your server services in an optimized way during the installation phase. Apache management codes also change according to the operations you will do differently. You can also find other Linux servers to host your websites. By the way, Lunix is an open source system and it will be of great use to you in terms of software.