Sounds like nginx streams - http://nginx.org/en/docs/stream/ngx_stream_core_module.html http://nginx.org/en/docs/stream/ngx_stream_core_module.html . Really use

Sounds like nginx streams - http://nginx.org/en/docs/stream/ngx_stream_core_module.html http://nginx.org/en/docs/stream/ngx_stream_core_module.html . Really useful if you need TLS but the author of whatever you are running couldn't be bothered by adding support (includes being able to do client certificate auth!).