Make specific apache2 site only avertible through one subnet:
=============================================================
*This will allow me to have a website only available through a specific subnet Such as my vpn.
Make changes with this file with nano:
sudo nano /etc/apache2/apache2.conf
and add this block (or look alike):


<Directory /var/www/Classic-Mirror>
        Options +Indexes +FollowSymLinks +MultiViews
        AllowOverride None
        Require ip 10.8.0.0/24
</Directory>


*Make sure that the old <Directory /var/www> is now set to is own <Directory /var/www/html> block
Save with Ctrl+X

Then reboot using command:
sudo service apache2 restart

Now that specific site is now secured.




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Sources:
https://stackoverflow.com/questions/44041052/cannot-allow-only-particular-ip-address-access-my-website-with-apache-2-4
https://serverfault.com/questions/1084051/apache-allow-certain-users-only-from-specified-subnet

Date: October 3rd 2023