4. Setting up CGI Parameters and HTTP/2 Protocol

• Make a group wadmins. This will help us in organizing the users on our server.
  • Open the terminal. Connect to the server with ssh. Execute

    sudo addgroup wadmins

  • Add mprogrammer (or your username if you chose a different one) and www-data to this group.

    sudo usermod -a -G wadmins mprogrammer
    sudo usermod -a -G wadmins www-data

• Create a subfolder for a test website.
  • Execute

    sudo mkdir /var/www/html/test01

  • Change the group of the folder to wadmins

    sudo chgrp wadmins /var/www/html/test01

  • Change the mode of the folder to 775

    sudo chmod 775 /var/www/html/test01

  • Restart the server

    sudo reboot

• Configure cgi
  • Log in back to the server with ssh
  • Execute

    sudo nano /etc/apache2/conf-available/cgi-enabled.conf

  • Type the following text

    <Directory "/var/www/html">
    Options +ExecCGI
        AddHandler cgi-script .cgi
    </Directory>
    

  • Execute

    sudo a2enconf cgi-enabled
    sudo systemctl reload apache2

  • Edit the file /etc/apache2/apache2.conf

    sudo nano /etc/apache2/apache2.conf

    Add the line to the end of the document

    LimitRequestBody 5500000

• Install the programs necessary for HTTP/2 protocol.

  sudo apt install php-fpm
  sudo a2enmod proxy_fcgi
  sudo a2enconf php8.3-fpm
   

• Restart the apache2 program.

  sudo service apache2 restart

• Enable the module http2.

  sudo a2enmod http2
  sudo systemctl restart apache2

• Edit the file /etc/apache2/apache2.conf

  sudo nano /etc/apache2/apache2.conf

  Go to the end of the document and add the following line

  Protocols h2 http/1.1

• Change the group of html to be wadmins.

  sudo chgrp -R wadmins /var/www/html

• Install the libraries libcgicc-dev and libpng++-dev.

  sudo apt install libcgicc-dev
  sudo apt install libpng++-dev

• Enable cgi.

  sudo a2enmod cgid
  sudo systemctl restart apache2