Installed PiHole and PiVPN using the setup scripts. Ran for a couple of days using pi.hole/admin to navigate to the admin console. I added Unbound per the instructions here unbound - Pi-hole documentation
I've also tried adding pi.hole and a couple of other domains to Local DNS -> DNS Records and they don't appear to be working
Expected Behavior
I would expect to be able to still navigate to pi.hole/admin and see the admin console. I can navigate to <pihole_local_ip>/admin and everything is fine. I also would expect to be able to add additional local DNS records to other ips on my LAN
Actual Behaviour:
No local DNS resolution appears to be happening. SSH'd into the Pi
kallick@pihole-wireguard:~ $ nslookup pi.hole
Server: 8.8.8.8 #Google was set as my upstream DNS before activating Unbound
Address: 8.8.8.8#53
** server can't find pi.hole: NXDOMAIN
kallick@pihole-wireguard:~ $ nslookup pi.hole 192.168.100.129 #pihole-wireguard's LAN IP
Server: 192.168.100.129
Address: 192.168.100.129#53
Name: pi.hole
Address: 192.168.100.129
Name: pi.hole
Address: fe80::5688:9dbe:1ee6:5f88
kallick@pihole-wireguard:~ $ nslookup flurry.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: flurry.com
Address: 18.136.37.69
Name: flurry.com
Address: 44.228.206.170
Name: flurry.com
Address: 54.161.105.65
Name: flurry.com
Address: 34.213.101.254
Name: flurry.com
Address: 13.251.69.97
Name: flurry.com
Address: 13.49.212.207
Name: flurry.com
Address: 34.225.127.72
Name: flurry.com
Address: 13.50.184.192
kallick@pihole-wireguard:~ $ curl -i http://pi.hole/admin/api.php
curl: (6) Could not resolve host: pi.hole
Very interesting, and maybe a little concerning. I can give a little more info on my network setup, in case it may be helpful.
I am running a couple of VLANs, but all of the devices being used in this thread are on the same one, which is the default VLAN. No VLANs are using 10 as the first octet. VLAN 2 only has cameras on it, so it doesn't have a DNS server, but VLAN 3 uses an ASUS router in AP mode and also routes to the Pihole for DNS. As far as I understood it, this required an inter-lan firewall rule. I hope I'm not doing anything stupid.
Oh my goodness. I don't know what the community guidelines are here on this forum or I'd be using a lot of expletives in this response. I was connected to an external VPN via PIA. I didn't realize I jumped on it yesterday I turned it off and the pi.hole resolution works. Another one for user error.
I actually was just scratching my head about that, since DNS resolution while SSH'd into the Pi was showing 8.8.8.8. Shouldn't it be using the loopback for Unbound, 127.0.0.1#5335? Won't this prevent me from specifying custom local DNS entries?
I turned it off and the pi.hole resolution works. Another one for user error.