Fix Unbound in DietPi

Do this after installing unbound in DietPi

cat << '_EOF_' > /etc/unbound/unbound.conf.d/dietpi-dot.conf
# Adding DNS-over-TLS support 
server:
tls-cert-bundle: /etc/ssl/certs/ca-certificates.crt
forward-zone:
name: "."
forward-tls-upstream: yes
## Cloudflare
forward-addr: 1.1.1.1@853#cloudflare-dns.com
forward-addr: 1.0.0.1@853#cloudflare-dns.com
## Quad9
# forward-addr: 9.9.9.9@853#dns.quad9.net
# forward-addr: 149.112.112.112@853#dns.quad9.net
## Cloudflare IPv6
# forward-addr: 2606:4700:4700::1111@853#cloudflare-dns.com
# forward-addr: 2606:4700:4700::1001@853#cloudflare-dns.com
_EOF_
systemctl restart unbound