Advanced/15-pihole-admin.conf 404 Forbidden (Fix)

[Bucking_Horn]

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Qouting from https://discourse.pi-hole.net/t/pi-hole-ftl-v5-20-1-web-v5-18-1-and-core-v5-15-released/60495:

@PromoFaux

Notable Changes in this release

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If you have been using IP blocking, and therefore custom.php or some other mechanism to display a page for blocked queries, you will need to make a one-time configuration change to inform lighttpd of the 404 handler, along the lines of:

Debian:

echo 'server.error-handler-404 := "/path/to/your/blockpage.php"' > /etc/lighttpd/conf-available/08-pihole-block-ip.conf
lighty-enable-mod pihole-block-ip
service lighttpd restart

Fedora:

echo 'server.error-handler-404 := "/path/to/your/blockpage.php"' > /etc/lighttpd/conf.d/pihole-block-ip.conf
echo 'include "/etc/lighttpd/conf.d/pihole-block-ip.conf"' >> /etc/lighttpd/lighttpd.conf
service lighttpd restart

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