As a newbie to cloud servers, I recently got started with Amazon’s AWS lightsail
,Due to the lack of server protection awareness,Only half a month after the server default 22 port can not be used,Initially thought it was GFW wall,Later, after a step-by-step investigation, it was found that it was done by someone,Because the connection management means of Amazon light sail background is only ssh,There are no other vnc,Serial console and other link management means (because it is really cheap)
,I didn’t install a panel to manage it.,The server is equivalent to being wasted.,I can only open a new server to migrate WordPress.,This shows the importance of SSH port defense.
1. Check the reason why the SSH port cannot be used
Use the IP port to check the website
