I am running PiHole 4.3.1 in a Docker container on Photon 3.0 (fully updated via distro-sync) on a VMWare ESXi 6.7 host. There are two domain controllers serving an active directory domain, both are running on Windows 2016 (also fully updated via Windows Update). The domain is “pbs.local”. I have set DHCP on the router (Mikrotik hardware running the latest updated version of RouterOS, in case that matters) to assign only the IP of the pihole VM, and pihole is configured to forward requests to the Google DNS servers as well as the IPs of the two DCs. Everything generally seems to work as intended.
I open my pihole interface via Chrome, using the address http://pihole.pbs.local/ (configuration works just fine via http://pihole.pbs.local/admin/). The address “pihole” is configured under “pbs.local” in DNS on the DCs. I am greeted with a screen that says:
Access to the following website has been denied:
This is primarily due to being flagged as:
Not found on any blacklist
Technical Info button identifies that the site is found in 1 of 10 lists (whitelist.txt), and attempting to enter the site into the qhitelist again results in a message telling me to flush DNS cache and/or restart my browser. I have run “ipconfig /flushdns”, restarted Chrome, and tried using incognito mode.