Requirement description: There are two servers *.*.*.150 and *.*.*.160, the local address 160 is forbidden, only 150 servers can connect to 160, and the key file can only be generated by 150, so the connection tunnel The key file and SSH authentication key file can only use 150 key files.
First generate an available ppk key file on 150, see another article for specific steps
https://mp.csdn.net/mp_blog/creation/editor/121286292
Next, to make the generated key file 160 also usable, you need to log in to the 150 server with tera term (other remote terminal connection software is fine), and perform the steps in the following figure
After the execution is completed, open winscp to start the connection, perform the following three steps, and you can log in successfully
