I m new to Pihole. I m right now the only device using the pihole hosted on a vps (testing purposes before putting it as my main dns server on my router).
I did add a certificate as well to access the dashboard via https.
My question is the following.
How to make sure that only the connection from my router will be able to use the pihole.
This morning on the dashboard I saw a HUGE amount of dns requests, from a computer or device definitely not coming from my computer (top clients ( [ip24-255-241-*.ks.ks.cox.net)
Yes. Close port 53 on your VPS. All you clients should establish a VPN connection to this server and send their DNS traffic via this VPN connection. Also your pihole web interface should only be accessible via this VPN.