DigitalOcean now offers shared private networking in NYC2. All new droplets created in NYC2 have the option of using private networking; it can be activated by choosing the checkbox called “Private Networking” in the settings section of the droplet create page.
Droplets that have the private networking enabled are then able to communicate with other droplets that have that interface as well. The shared private networking on DigitalOcean droplets is represented by a second interface on each server that has no internet access.
I’m gonna try this feature from Digital Ocean today, although there are already several provider out there which having this feature for a long time, such BuyVM or Prometeus iwStack.