Can't connect to port 80

Hello guys.

I've a small webapp running in the port 80 of my VPS. When I connect via ssh to the machine, I can successfully curl localhost; however, when I try to connect using a web browser to the public IP I get a connection timeout.

I obviously added an ingress rule for TCP traffic to port 80 from 0.0.0.0/0 and the iptables config is the following:

Chain INPUT (policy ACCEPT)

target   prot opt source        destination

Chain FORWARD (policy ACCEPT)

target   prot opt source        destination

Chain OUTPUT (policy ACCEPT)

target   prot opt source        destination

... so that shouldn't be a problem.

It so weird because I previosly opened port 15672 for access to RabbitMQ management and I have no problems doing that.