https://fly.io/docs/networking/flycast/
Flycast - Private Fly Proxy services · Fly Docs
Documentation and guides from the team at Fly.io.
fly proxyflycastprivateservicesdocs
https://dev.to/kakarotdev/tcp-worked-udp-silently-died-shipping-a-dns-proxy-to-flyio-3e9n
TCP worked, UDP silently died: shipping a DNS proxy to fly.io - DEV Community
Apr 24, 2026 - I shipped v0.2.0 of dnsink — a Rust DNS proxy with threat-intelligence feeds and DNS tunneling... Tagged with networking, rust, security, showdev.