Apache setup for C++ .cgi (Ubuntu)

Enable CGI module

$ sudo ln -s /etc/apache2/mods-available/cgi.load /etc/apache2/mods-enabled/

Add this configuration inside <Directory /var/www/> on /etc/apache2/apache2.conf

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

Restart Apache2

$ systemctl restart apache2

Compile your cpp file and put to /var/www/html/

$ sudo g++ FILENAME.cpp -o /var/www/html/FILENAME.cgi