Source of the problem:
Ali cloud on their own server instance for reasons of security made some restrictions, including restrictions port
background:
My side node listening port is port 80
Ali cloud instance background management system:
The current instance supports all of the ports and specify the IP (into the cloud server ECS -> find the network and security -> find the security group, enter the security group, find the configuration rule on the right you can see the list of supported the port), which does not include a 80-port, so the public will not be found.
Problem Solution:
Into the cloud server ECS -> find the network and security -> Found Security Group -> click on the right configuration rules -> click on the upper right corner to add security groups Rule button, and then add the port in the range of 80/80 to open the pop inside, authorization object It is 0.0.0.0/0