How to use it in production?

[Arctomachine]

I understand general idea of this app - hold bad ssh connections.
But how to make it work? What do I need to do in server to make it trap port 22 while I can connect to port 12345 freely?
Or how do I need to connect to port 22 to make it let me in (how to show it is good connection)? Important: without making my computer the only one whitelisted

[joel-gfdez]

AFAIK:

What do I need to do in server to make it trap port 22 while I can connect to port 12345 freely?

You run it on port 22 (check the README) and then connect to port 12345 like normally. There is nothing special you have to do here, you just have to configure your actual ssh server to listen on port 12345.

Or how do I need to connect to port 22 to make it let me in (how to show it is good connection)?

If Endlessh is listening on port 22, you can't. It only traps clients by returning random banners, it can't proxy to a real SSH server. You should do that on firewall/portforwarding level.