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Followed https://docs.pi-hole.net/guides/vpn/overview/ to install openvpn on a raspbian which already has a running pihole+unbound.
The only difference between my steps with the docs is I had a pihole+unbound first, then install openvpn later. I didn’t choose tun0 interface to configure pihole as it was already running fine on eth0. I assumed to change the listen interfaces to all on pihole dashboard will work.
no matter I push which DNS server in OpenVPN configuration file, on OpenVPN client log, the DNS always shows 127.0.0.1. (I think it may relate to pihole use 127.0.0.1#5353 to query unbound)
After connect OpenVPN, the intranet and Internet both works via IP addresses, no DNS resolving.
Not sure what I can do to make pihole, unbound and openvpn work together. Thanks.