Found the answer on this link.
https://discourse.pi-hole.net/t/0-0-0-0-response-on-pi-hole-4-0-for-blocked-domains/11589
and this: https://docs.pi-hole.net/ftldns/blockingmode/
The new blocking default method is redirecting everything blocked to 0.0.0.0
If you want the old behavior back, you need to add BLOCKINGMODE=IP OR BLOCKINGMODE=IP-NODATA-AAAA to /etc/pihole/pihole-FTL.conf
(Still not sure about the error I mentioned on my previous post about user 'pihole' not existing, and on the settings page under FTL Information, the User / Group shows as nobody / nobody)
Pinned Comments
max.bra commented on 2025-02-21 21:44 (UTC)
ArchLinux Pi-hole is not officially supported by Pi-hole project. In case of bugs and malfunctions please DO NOT file a report upstream.
First of all check if the wiki (https://wiki.archlinux.org/index.php/Pi-hole) can help then ask here for assistance and tips.
When it will be excluded that the problem does not depend on ArchLinux we will file a bug upstream.
max.bra commented on 2025-02-21 17:56 (UTC)
to update to pi-hole 6, please use pi-hole-core pi-hole-ftl and pi-hole-web packages.