![]() For example, if an example contains something like, replace it with the FQDN of your own server. This type of highlighting will be used throughout this guide to denote details that need to be replaced with your own settings or that the highlighted text must be modified or added to a configuration file. Lastly, be aware that any time a command or code block contains text that is highlighted like this, it means that text is important. Likewise, any commands that must be run on ns2 will have a red background:Īnd any commands that must be run on one of your client servers will have a green background:Īnd any commands that must be run on multiple servers will have a standard navy background: Any commands that must be run on ns1 will have a blue background, like this: If you run servers in multiple datacenters, you can set up an internal DNS within each respective datacenter.īy the end of this tutorial, you will have a primary DNS server, ns1, and optionally a secondary DNS server, ns2, which will serve as a backup.Īs you follow this tutorial, there will be times when you must run certain commands on a specific server in this setup. It is not necessary to use the region name of the datacenter in your naming scheme, but we use it here to denote that these hosts belong to a particular datacenter’s private network. You should be able to adapt this setup to your own environment by replacing the host names and private IP addresses with your own. Note: Your setup will be different, but the example names and IP addresses will be used to demonstrate how to configure a DNS server to provide a functioning internal DNS. The following table holds the relevant details used in examples throughout this guide: Therefore, host1’s private Fully-Qualified Domain Name (FQDN) will be. With these assumptions in mind, the examples in this guide will use a naming scheme based around the subdomain to refer to the example private subnet or zone. However, using a domain you own may help avoid conflicts with publicly routable domains. The DNS servers will always attempt to first route requests internally, meaning they won’t try to reach the given domain on the public internet. This guide outlines how to set up an internal, private DNS system, so you can use any domain name you’d like instead of. All servers are connected to a project that runs on.All of these servers have private networking enabled and are on the 10.128.0.0/16 subnet ( you will likely have to adjust this for your servers).This tutorial assumes that this datacenter is called nyc3. All of these servers exist in the same datacenter.You can add as many client servers as you’d like. You have two additional client servers that will be using the DNS infrastructure you create, referred to as host1 and host2 in this guide.This guide will refer to these as ns1 and ns2. ![]() You have two servers which will be designated as your DNS name servers.Example Infrastructure and Goalsįor the purposes of this article, we will assume the following: Check out our VPC product documentation to learn more. On DigitalOcean, all new Droplets created are placed into a Virtual Private Cloud (VPC) by default. If you are unfamiliar with DNS concepts, we recommend that you read at least the first three parts of our Introduction to Managing DNS On each of these servers, configure an administrative sudo user and set up a firewall by following our Ubuntu 20.04 initial server setup guide. These client servers must be created in the same datacenter where your DNS servers are located. ![]() This guide assumes you have two additional servers, which will be referred to as client servers.
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