我就按照油管上面相关内容开的机器,安全组选的默认自带的,我看了也是0.0.0.0/0,但是我ssh连不上,putty提示:“Network error:Connection refused”,它在线的ssh "EC2 Instance Connect" 连接提示:“Failed to connect to your instance
EC2 Instance Connect is unable to connect to your instance. Ensure your instance network settings are configured correctly for EC2 Instance Connect. For more information, see Set up EC2 Instance Connect at https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-connect-set-up.html.”