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Question

Private Network

Posted May 9, 2019 2k views
NetworkingDNS

Setup:

  1. Built a base image via packer.
  2. This base image is used to set up my infrastructure (via ansilbe)
  3. Terraform sets privatenetworking <https://www.terraform.io/docs/providers/do/r/droplet.html#privatenetworking> variable to true

Question:

  1. why do are these droplets (configured via terraform) assigned a public ip?
  2. why is their public ip reachable on the internet
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myprogramingnotes
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myprogramingnotes

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1 answer
cr3ativeprogrammer May 10, 2019
  1. Droplets always have public ip, they can have private ip if u choose to have private networking on.
  2. you can always set firewall rules to deny public ip .
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  • myprogramingnotes May 10, 2019

    Thanks for the response.

    I know that DO does not implement VPC (at least not that I can see from the docs I have looked through). But coming from AWS, I find that the idea of a private network tied to private subnet is entrenched in my mental mode of understanding. And instances launched in private subnets do not have public ips.

    I guess what threw me off is the word - private - and thus ended up mixing up private subnets and private networks.

    since I am using ansible, I create a template that removes eth0 entry from /etc/network/interfaces from the droplets that need to be private.

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