EC2 instance has apache2 server installed, but I can't connect to it
Solution 1:
When you want to expose a service/port on an EC2 Instance, you need to create a security group which allows connections in that port and attach it to the instance.
So for example, you can create a security group like so:
And when you attach it to the instance, it will allow connections on port 80 from all the world (0.0.0.0/0).
Also, I'd check that the server actually listens on this port, run:
netstat -plunt | grep "443 \|80 "
And to see that the server responds:
curl -I http://localhost
Solution 2:
Try http, not the default https. This finally worked for me.