Goodday.
I'm monitoring my powerdns with packetbeat and elasticsearch.
When domain query with all lowercase, everything is fine.
ex) dig sub.example.co.kr
dns.question.name : sub.example.co.kr
dns.question.registered_domain : example.co.kr
dns.question.subdomain : sub
but when top level domain has uppercase, couldn't get exact registered domain
ex) dig sub.example.co.KR
dns.question.name : sub.example.co.KR
dns.question.registered_domain : co.KR
dns.question.subdomain : sub.example
DNS Answer doesn't care whether domain uppercase or lowercase
and I found that registered domain uses list of public suffix list
( View the Public Suffix List )
Is it possible to get exact registered_domain with uppercase top level domain?
Thank you