❗ Project moved to GitLab, due to GitHub's lack of IPv6 support. https://gitlab.com/miyurusankalpa/IPv6-dns-server

Introduction

A simple Node DNS Server proxy based on Peteris Rocks tutorial, which serves IPv6 records if a CDN is matched.

Running locally

Clone the repo

git clone https://gitlab.com/miyurusankalpa/IPv6-dns-server.git

Build the project

npm install

Starting the server

npm start

Changing DNS Resolvers

Change the dns_resolver variable in the app.js file.

Disable IPv6 for a domain

Add the domain to no_aaaa array in the app.js file.

Add a custom IPv6 for a domain

Add the domain to add_aaaa object with IPv6 address in the app.js file.

Turn off aggressive mode

Change the aggressive_v6 variable to false in the app.js file. See individual services below to see what aggressive mode does.

Turn on IPv6 only mode

Change the v6_only variable to true in the app.js file.

Testing if DNS proxy is working

Cloudflare

• Test domains: db-ip.com
• IPv6 Type: Anycast
• Usability: Stable
• Coverage: All
• Aggressive mode: All cloudflare services which uses their DNS service, regardless of cloudflare proxy has been disabled(grey cloud) will get a Cloudflare IPv6 address.

Akamai

• Test domains: www.last.fm, www.amd.com
• IPv6 Type: Unicast
• Coverage: All
• Usability: Stable

Fastly

• Test domains: imgur.com, www.twitch.tv
• IPv6 Type: Anycast, Unicast
• Coverage: All
• Usability: Stable

Amazon S3

• Test domains: s3.amazonaws.com, github-production-release-asset-2e65be.s3.amazonaws.com
• IPv6 Type: Unicast
• Coverage: *.s3.amazonaws.com and s3 websites hostnames/cnames only.
• Usability: Stable

Amazon Cloudfront

• Test domains: www.amazon.com, vod-secure.twitch.tv
• IPv6 Type: Unicast
• Coverage: All
• Usability: Stable

Bunnycdn

• Test domains: cdn-b-east.streamable.com
• IPv6 Type: Unicast
• Coverage: All
• Usability: Stable

Highwinds

• Test domains: code.jquery.com
• IPv6 Type: Anycast
• Coverage: All
• Usability: Stable

Microsoft Edge

• Test domains: onedrive.live.com
• IPv6 Type: Anycast
• Coverage: Only on some services
• Usability: Stable

Microsoft Windows (Edgecast)

• Test domains: software-download.microsoft.com
• IPv6 Type: Unicast
• Coverage: Only on some services
• Usability: Unknown

Sucuri

• Test domains: www.exploit-db.com
• IPv6 Type: Anycast
• Coverage: Only on some services
• Usability: Unknown

Weebly

• Test domains: www.weebly.com
• IPv6 Type: Unicast
• Coverage: Unknown
• Usability: Unknown

Wordpress VIP

• Test domains: wpvip.com, nielsen.com
• IPv6 Type: Anycast
• Coverage: Unknown
• Usability: Unknown

Github.io (Fastly)

• Test domains: sadh.life
• IPv6 Type: Anycast
• Coverage: Only IPv4 match
• Usability: Stable

Stack Exchange sites (Fastly)

• Test domains: stackoverflow.com
• IPv6 Type: Anycast
• Coverage: All+Only on Aggressive mode.
• Usability: Logout or delete cookies
• Aggressive mode: Errors on some pages

Twitter (Cloudfront)

• Test domains: twitter.com
• IPv6 Type: Unicast
• Coverage: Some Domains+Only on Aggressive mode.
• Usability: Logout or delete cookies
• Aggressive mode: Errors on some pages

Credits

• Pēteris Ņikiforovs