Please excuse my miskey- I meant "plone instance", not "phone instance".
Thanks for the responses. Yes I can access my server with the nonstandard ssh port locally, and I can access SME via ssh remotely. I just can't access the nonstandard port remotely.
Has anyone else used port forwarding to redirect ssh requests? I guess I'm still not sure if this is even possible?
By "Can anyone confirm this?" I simply meant "is this assumption correct?". I'm sorry this wasn't clear.
I wasn't asking about the Plone instance, but rather my assumptions concerning how port forwarding would work. And I see now that my assumptions were not correct, thanks for the response.