When this option is enabled, the DNS proxy server will use HTTPS connections to
forward DNS requests to the DoH resolver; it will not fallback to traditional UDP
DNS options.
The options to configure DoH with a predefined server are:
● Cloudflare - The DNS server IP addresses for Cloudflare will be using
1.1.1.1, which is unfiltered.
● Quad9 - The DNS server IP addresses for Quad9 will be using 9.9.9.9
and 142.112.112.112, which is malware blocking and DNSSEC.
● Google DNS - The DNS server IP addresses for Google DNS will be
using 8.8.8.8 and 8.8.4.4, which is RFC8484 standard.
● OpenDNS - The DNS server IP addresses for OpenDNS will be using
208.67.222.222 and 208.67.220.220, which is standard DNS.
● Custom URL - You may select Custom URL:, and enter the resolver
URL and IP address.