我可以通过ssh检查某个入站端口是否在ec2中打开？

So all I have is .pem file, I cannot log in to the AWS to check a certain port's situation. Let's say if I want to check that the Http port (80 port) is open or not. How can I check it without log into the AWS console? I have read several articles. What they provide is tutorials telling you how to check it by logging into the AWS console, which is not what I can do. Is there a command to do so or any test I can try? file, I cannot log in to