Show HN: Running the second public ODoH relay
The author announces the operation of the second public ODoH (Oblivious DNS over HTTPS) relay, accessible at odoh.numa.rs. ODoH is a protocol that encrypts DNS queries and uses two independent servers (a proxy and a target) to ensure neither sees both the client IP and the query content. This relay, built using the odoh-rs library, supports both GET and POST methods and is available for public use without registration. The author notes that while ODoH adds latency compared to standard DoH, it provides stronger privacy guarantees by preventing DNS resolvers from linking queries to specific users. The relay is intended for testing and privacy-conscious users, and the author encourages others to run relays to increase network resilience.
Developers can now integrate ODoH for anonymous DNS resolution without accounts, reducing metadata leakage.