[Operation and maintenance] ssh tunneling relies on the 22 port of ssh to realize the interface service of accessing the remote server

On Aliyun's remote Linux server, only port 22 has been opened, but other ports cannot be opened. After I have opened the 7001 interface service in Linux, can I access the 7001 interface service through port 22 on my local Windows system?
Yes.

The fastest way is to use mobaxterm:

That's it:

Code on windwos:

requests.post(url="http://127.0.0.1:7001/analyseImageBytes")

It is equivalent to me accessing port 7001 of windows, and then moba transferred it to the ssh server for me, and the ssh server is actually a springboard, can access 7001, and directly establish a 7001 connection between windows and ssh server.It's a waste of study!