Digitalocean offer firewall management. I am not sure how this compares to onboard, and feedback on it would be great, however, what are the basic recommendations for setup or best practices other nodeBb admins suggest?
Inbound, set to ALL IPv4/v6, TCP
Outbound - Same again or more or less?
What kind of settings do other users find works and what other tips for securing the nodeBB server do others also employ.