Amazon EC2 port 80 not open despite being in security group - Server Fault
Deployment: Failed to connect to localhost port 80: Connection refused Latest deployment failed! Reverted back to the previous version. · Issue #464 · arunoda/meteor-up-legacy · GitHub
amazon web services - How to debug or fix Connection Refused trying to curl EC2 instance port? - Stack Overflow
How to serve your website on port 80 or 443 using AWS Load Balancers | by Tim Fogarty | tfogo | Medium
Connection refused problems of my EC2 instance | AWS re:Post