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How to install and configure Apache2?

 
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In this article we will see how to install and configure Apache2 web server in Ubuntu 16.04

Note: Throughout this article, we will be referring to domain name as website1-example.com. Replace this domain name with your actual domain name whenever required.

Step – 1 : Install Apache2 web server
We will begin with updating the local package to reflect the latest upstream changes. Afterwards we can install the Apache2 package.



The status can be check by running the following commands



You can access the default apache landing page to confirm that the software is running properly. You can access this through your server’s domain name or IP address.

Step – 2 : Check web server
Run below command to make sure the service running



Now you can access the default apache landing page to confirm that the software is running properly. You can access it through your server’s domain name or IP address.

For example: http://www.website1-example.com

Step – 3 : Create virtual host
In Apache on Ubuntu all the virtual host configuration files are stored under /etc/apache2/sites-available directory. With the new Apache installation you can find a default virtual host file called 000-default.conf there. We will create a new virtual host configuration file by copying 000-default.conf file.



Open your virtual host file,



The file should look like the following:



Now edit this file as per your requirement. My configuration looks like below:



  • ServerAdmin: Server admin’s email address.
    ServerName: The domain that should match for this virtual host configuration. This should be your domain name. i.e. website1-example.com
    ServerAlias: It is an additional matching condition that needs to be processed. i.e. http://www.website1-example.com
    DocumentRoot: The directory from which Apache will serve the domain files.
    Options: This directive controls which server features are available in a specific directory.
    ErrorLog, CustomLog: Specifies the location of log files.



  • Step – 4 : Create project directory
    By default the document root directory is /var/www/html. We will create a website1-example.com directory in www directory as defined in the above virtual host configuration.



    Now let’s create a test HTML file called index.html in a root directory we just created in a previous step.



    Add the following code to the file and then save it.



    Step – 5 : Enable the virtual host
    Enable the virtual host using the a2ensite tool:



    Apply the changes to Apache



    Next, open /etc/hosts file in editor and add your domain/IP address like below:



    For example:



    Save and close the file.

    Step – 6 : Enable CORS
    Now we will enable CORS on apache2 server. CORS is a process which tells browsers to access resources from different origin (domain, protocol, port) via HTTP headers

    Enable headers by typing:



    Open /etc/apache2/apache2.conf file by typing following command and add cross-origin headers in <Directory> section



    For example:



    Figure : CORS Configuration

    Step – 7 : Enable ports
    If you are using ports other than default port number 80 then we need to enable that port. In step 3 we have configured a virtual host on port 8090. Let’s enable port 8090 in Apache2.

    Open /etc/Apache2/ports.conf file. In this file add your port number.

    For example:



    Save and close the file.

    Restart your apache2 service to reflect all changes.


     
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