パッケージ: snid (0.3.0-2)

Oblivious TLS-SNI proxy with zero config IPv4/v6 translation

A lightweight proxy used to forward TLS connections (without decryption) to backend servers listening on IPv6 or UNIX sockets based only on the cleartext server name indication (SNI) hostname. Note: ESNI/ECH is not (yet) supported.

Backend addresses are constructed based on DNS lookups or filesystem path for IPv6 and UNIX listeners respectively, making snid deployments exceedingly easy to manage.

Unlike other TLS-SNI proxies snid's address mapping approach (-mode nat46) allows exposing any unmodified TLS-based service listening on IPv6 towards legacy IPv4 with no configuration or loss of client identity by encoding IPv4 client addresses into IPv6 source addresses.

Running a few snid nodes across an infrastructure thus removes the need to think about legacy IP problems like address exhaustion, port-forwarding or multi-layer NAT ever again.

Client identity in snid isn't handled using hacks such as the PROXY protocol or X-Forwarded-For/X-Real-IP headers in the case of HTTP based protocols. This avoids confusion as to what is the real client IP, at least for programs not already expecting these.

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