I have a Raspberry Pi 2 with DietPi running Pi-hole as a DNS server. Moreover, I am doing DNS-Over-HTTPS using the argo-tunnel tool cloudflared (https://bendews.com/posts/implement-dns-over-https/).
Now I'd like to set up a VPN server on the same Raspberry Pi 2 for very occasional use when I'm on travel. I plan on doing so using the PiVPN script (https://pimylifeup.com/raspberry-pi-vpn-server/). I'm only going to port forward on the router when I'm on these trips, basically because having open ports is a bit spooky as far as I'm concerned.
My question is as follows: Given my DNS server is performing DNS-Over-HTTPS by setting server=127.0.0.1#5053 in files in /etc/dnsmasq.d per the link above, when I am running through the VPN setup with PiVPN and am asked to set a DNS provider, do I give a custom provider of 127.0.1#5053? Will the PiVPN script accept the port number as such? And, importantly, is there anything I am missing with the feasibility of using Pi-hole, DNS-Over-HTTPS, and a VPN server on the same Raspberry Pi?
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