This is an elementary question however one I cannot seem to resolve by perusing the Oracle documentation. I've created an Ubuntu-based compute node, and it's attached to a subnet. In that subnet I've created a stateful rule with source 0.0.0.0/0, IP protocol: TCP, Source Port Range: All, Destination Port Range: 80.

There is no firewall configured on the server.

Despite this configuration I can't access the compute node's public IP. Any ideas?

Can’t access Oracle Cloud Always Free Compute http port

• configure ingress route for port 80
• curl localhost should bring back webpage in text format, however fails over internet.

$ sudo iptables -I INPUT 6 -m state --state NEW -p tcp --dport 80 -j ACCEPT
$ sudo netfilter-persistent save

• Test your web page over internet

http://marcinmitruk.link/posts/cant-access-oracle-cloud-always-free-compute-http-port-80/