IPv4

IPv4, or Internet Protocol version 4, is a networking protocol that maps 32-bit IP addresses to devices on a network. IPv4 routes most of the network traffic on the internet.

IPv4 addresses are 32-bit integers conventionally written in dot-decimal notation, like 203.0.113.15.

IPv4 Articles

Assign a public IP address to your machine to make it accessible over the internet, or remove the public IP address when your machine no longer needs external access.
Send outbound traffic from your Droplet over a reserved IP address.
Disable IPv4 to rely solely on IPv6.