Just a followup. I was finally able to reach my goal with netChess and port forwarding. My issue was caused by putty settings for reverse tunnel. It turned out that with putty (and reverse) you can either listen locally or on all interfaces, and there is no way to listen on selected interface only.

Hi HG,

Thanks for the tool, looks promising and I'm going to see if it works in scenario I presented 2 years ago. I know it is an old thread ;)
I was also wondering if you could consider putting your tool on sourceforge or in some place where it will last another couple of years if people are ...

Update: I've tried Arena GUI with no luck, too. Local port forward works, ie. installing UCI engine on laptop and connecting to it from office machine using Arena. But the configuration outlined on my drawing does not work :/

Here is my drawing (you can click to enlarge):

There is a third scenario I try to solve here: UCI engine (the server) is also behind a firewall which I do not have a control of, so that is why I need to open a reverse tunnel to my ssh host first. So unlike your second scenario, I'm trying to connect to a more powerful machine sitting on the ...

I will try different gui tomorrow but I think the problem may lie in remote port forwarding in opposite to the local port forwarding you used in your solution.
Please note that I'm opening remote port on my home router which is forwarded to the engine sitting on Windows computer in another location ...

I'm looking for a piece of advice from someone who already got UCI engine working remotely by using port forwarding.
With help from netChess ( http://home.arcor.de/bernhard.wallner/netChess.html ) I'm able to use UCI engine over the LAN, but I wanted to do the same over the internet using port ...