This can achieved using the concept of Virtual Host or VHost. Any domain that you want to host on your web server will have a separate entry in apache configuration file. In order to configure name based virtual hosting, you have to set the IP address on which you are going to receive the Apache requests for all the desired websites. You can do this by NameVirutalHost directive within the apache configuration i.
You can add as many virtual hosts, as per your requirement. You can check your web configuration files with:. In order to setup IP based virtual hosting, you need more than one IP address configured on your server. So, the number of vhost apache will depend onnumber of IP address configured on your server. If your server has 10 IP addresses, you can create 10 IP based virtual hosts.
In the above diagram two websites example1. It allows Apache to interpret. Php files. You can also check it with:. FastCGI i. It starts sufficient number of instances of CGI to handle concurrent web requests. It also uses suexec to support different users with their own instances of PHP and improves web security. Apache can also handle ruby files through FastCGI. If you like to enable or disable these modules, you have to edit the apache configuration file and comment or uncomment these modules, if the web server is already compiled with these modules.
Apache displays its version and the name of the operating system in errors as shown in below screenshot. A hacker can use this information to launch an attack using the publicly available vulnerabilities in the particular version of the server or OS.
If your document root directory does not have an index file, by default your apache web server will show all the content of the document root directory. It is good practice to disable all unnecessary modules that are not in use. You can see list of enabled module available in your apache configuration file —. Once you restrict acess outside the web root directoy, you will not be able to access any file located on any other folder on your web server, you will get return code.
If you like to protect your web server from Dos i. It is a third party module that detects Dos attack and prevents the attack from doing as much damage as it would do if left to run its course. It could be downloaded here. Download the above File.
This module works as a firewall for Apache and allows you to monitor traffic in real time. It also prevents the web server from brute force attacks.
Apache does not have any restriction on the total size of the http request that could lead to a DoS attack. The value could be set anything from 0 to 2 GB i. TransferLog directive is available in the apache configuration file and it rotates virtual host log files as per set parameters.
You can enable them by editing the apache configuration file i. Custom Log creates separate log file for each Virtual Host on your server. It needs to be specified in the virtual host section of the config file. You can see below mentioned virtual host configuration, generated log will be custom for that virtual host and the format will be combined. The Web Server must have a direct network connection and a staticIP address configured on it. It needs to have all the modules required for running web pages.
So, one can say that managing a web server for multiple domains is very complex task and requires editing hundreds of configuration file, customizing each application to fulfill the desired result. Troubleshooting any miss configuration will be very difficult for beginners.
Cpanel provide a graphical way of managing your web server. Tomcat can run on Windows and Unix-based systems. We will use the Amazon Corretto JDK for this tutorial because it is a free, open-source, installed Windows installer package. NOTE: If you wish to use Amazon Corretto 16, you must have a bit Windows system because, at the time of writing this tutorial, Corretto 16 does not offer an x86 Windows installer.
Since the installation process is very straightforward, you can accept the default options provided in the installer and complete the installation. Once completed, open the command prompt and enter the command below to verify that you have Java successfully installed.
In this guide, we will use Tomcat You can also use Windows service manager to start the service. To verify Tomcat is running, open your browser and navigate to:.
Before installing Amazon Corretto, ensure you do not have Java already installed. Installing Apache Tomcat To install Tomcat10 on your Linux system, open the terminal and download the package using the command:. The Tomcat manager allows you to manage the Tomcat server from the web interface. However, you must have the tomcat manager users set up during the installation Windows.
On Linux, edit the tomcat-users. Enter the username and password you configured in the tomcat-users. Once authenticated, you should see a tomcat manager window similar to the one shown below:.
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