DNS

DNS

Conventionally DNS goes to port 53 UDP unencrypted.

DOH (DNS over HTTPS) | Port 443

• Encapsulates DNS queries inside regular HTTPS traffic.
• Indistinguishable from regular HTTPS traffic

ICANN (Internet Corporation for Assigned Names and Numbers)

• Managing the root DNS servers.
• Accrediting domain name registrars.
• Allocating IP addresses and managing domain name system (DNS) protocols.
• Ensuring the global coordination of the DNS.

DNS Registrar

A DNS registrar is a company or organization authorized by ICANN to sell and manage domain names for end-users.

DNS cache on windows

ipconfig /displaydns

Flush DNS

ipconfig /flushdns