I've set up a Cardano node using DigitalOcean's droplet, and I've gotten to the point where I can run:
cardano-wallet serve --port 1337 --mainnet --database ~/cardano/db --node-socket ~/cardano/db/node.socket
However, I'm not able to access it publicly either via a web browser or using CURL.
curl --url http://<public ip address>:1337/v2/network/information | jq
I've made sure the firewall rules allow inbound connections via TCP to port 1337 (all ipv4 and ipv6). Outbound supports all TCP and all UDP for all ports.