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I have a home server running ubuntu 10.04 that is running two services:

  1. an SSH service
  2. a dockerized gogs service

I would like to essentially reverse-proxy incoming SSH connections based on the subdomain. For instance, I'd like for ssh connections made via ssh [email protected] to be forwarded to port 2222 and those made via ssh [email protected] to be forwarded to port 10022.

In essence, I'd like something analogous to nginx for SSH traffic. How can this be achieved?

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This is impossible. SSH has no notion of a Host header as is present in HTTP. The best you can do is port-based routing.

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  • Bad news, but thanks for the answer.
    – Louis Thibault
    Commented Jun 23, 2015 at 17:18
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    @blz I managed to patch the OpenSSH client to work through a name based HTTP proxy. It is dirty as hell and will not work with all proxies. You should be using IPv6 instead.
    – kasperd
    Commented Jun 28, 2015 at 10:38
  • @kasperd, thanks for the link and for the full disclosure! I'll look into it carefully :)
    – Louis Thibault
    Commented Jun 28, 2015 at 14:31

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