https://github.com/willscott/renamed

A Reflective Name resolution server
https://github.com/willscott/renamed

Last synced: 7 months ago
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A Reflective Name resolution server

• Host: GitHub
• URL: https://github.com/willscott/renamed
• Owner: willscott
• License: mit
• Created: 2015-12-10T16:53:43.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2016-01-02T15:20:49.000Z (over 10 years ago)
• Last Synced: 2025-07-01T10:48:08.635Z (12 months ago)
• Language: JavaScript
• Size: 18.6 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
renamed: a reflective named server

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renamed is an implementation of a measurement technique to determine if

a DNS client is capable of communicating with a remote DNS server, and to

learn about DNS consistency issues on those remote connections.

technique

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Renamed works by asking clients to perform a unique CNAME redirection

through a remote server. When a recursive DNS server does its

resolution, it will not request further resolution, so the challenge

faced is that the remote server will not know the answer that

it should give for this unique sub-domain. To address this, renamed

directly queries the remote server to populate its cache with an

authoritative answer (in the form of another CNAME redirect) for

the sub-domain. This means that if a client comes back to renamed

asking for the second CNAME, it was successfully able to contact

and learn the cached value in the remote server. If it does not,

but comes back asking for the first CNAME again, we learn that

communication with the remote server failed.