Several days to solve this small problem, really inefficient ah
Ali cloud reference documentation https://help.aliyun.com/document_detail/51644.html?spm=a2c4g.11186623.2.20.21f471af3b2aFx#concept-51644-zh
The main idea 1 . Modify the port file
Release port, restart ssdh
2. Examples of such security group released port: 1022
3. terminal is connected to