vinyldns / vinyldns

DNS Governance for streamlining DNS operations and enabling safe and secure DNS self-service

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VinylDNS is a vendor agnostic front-end for enabling self-service DNS and streamlining DNS operations. VinylDNS manages millions of DNS records supporting thousands of engineers in production at Comcast. The platform provides fine-grained access controls, auditing of all changes, a self-service user interface, secure RESTful API, and integration with infrastructure automation tools like Ansible and Terraform. It is designed to integrate with your existing DNS infrastructure, and provides extensibility to fit your installation.

VinylDNS helps secure DNS management via:

  • AWS Sig4 signing of all messages to ensure that the message that was sent was not altered in transit
  • Throttling of DNS updates to rate limit concurrent updates against your DNS systems
  • Encrypting user secrets and TSIG keys at rest and in-transit
  • Recording every change made to DNS records and zones

Integration is simple with first-class language support including:

  • java
  • ruby
  • python
  • go-lang
  • javascript

Table of Contents


Docker images for VinylDNS live on Docker Hub at To start up a local instance of VinylDNS on your machine with docker:

  1. Ensure that you have docker and docker-compose
  2. Clone the repo: git clone
  3. Navigate to repo: cd vinyldns
  4. Run ./bin/ This will start up the api at localhost:9000 and the portal at localhost:9001
  5. See Developer Guide for how to load a test DNS zone
  6. To stop the local setup, run ./bin/

There exist several clients at that can be used to make API requests, using the endpoint http://localhost:9000

Things to try in the portal

  1. View the portal at http://localhost:9001 in a web browser
  2. Login with the credentials professor and professor
  3. Navigate to the groups tab: http://localhost:9001/groups
  4. Click on the New Group button and create a new group, the group id is the uuid in the url after you view the group
  5. View zones you connected to in the zones tab: http://localhost:9001/zones. For a quick test, create a new zone named "ok" with an email of "" and choose a group you created from the previous step. (Note, see Developer Guide for creating a zone)
  6. You will see that some records are preloaded in the zoned already, this is because these records are preloaded in the local docker DNS server and VinylDNS automatically syncs records with the backend DNS server upon zone connection
  7. From here, you can create DNS record sets in the Manage Records tab, and manage zone settings and ACL rules in the Manage Zone tab
  8. To try creating a DNS record, click on the Create Record Set button under Records, Record Type = A, Record Name = my-test-a, TTL = 300, IP Addressess =
  9. Click on the Refresh button under Records, you should see your new record created

Other things to note

  1. Upon connecting to a zone for the first time, a zone sync is executed to provide VinylDNS a copy of the records in the zone
  2. Changes made via VinylDNS are made against the DNS backend, you do not need to sync the zone further to push those changes out
  3. If changes to the zone are made outside of VinylDNS, then the zone will have to be re-synced to give VinylDNS a copy of those records
  4. If you wish to modify the url used in the creation process from http://localhost:9000, to say, you can modify the bin/.env file before execution.
  5. A similar docker/.env.quickstart can be modified to change the default ports for the Portal and API. You must also modify their config files with the new port: &

Code of Conduct

This project and everyone participating in it are governed by the VinylDNS Code Of Conduct. By participating, you agree to this Code. Please report any violations to the code of conduct to

Developer Guide

See for instructions on setting up VinylDNS locally.


See the Contributing Guide.


See for the future plans for VinylDNS.


Maintainers and Contributors

The current maintainers (people who can merge pull requests) are:

  • Paul Cleary
  • Nima Eskandary
  • Michael Ly
  • Rebecca Star
  • Britney Wright

See for the full list of contributors to VinylDNS.

See for documentation specific to maintainers


VinylDNS would not be possible without the help of many other pieces of open source software. Thank you open source world!

Initial development of DynamoDBHelper done by Roland Kuhn from

Given the Apache 2.0 license of VinylDNS, we specifically want to call out the following libraries and their corresponding licenses shown below.