The DNS Museum
DNS Museum · 49 entries
The DNS Museum
A reference for the odd, inventive, and always impractical things people have done with DNS.
Traceroutes
7 entries
American Pie traceroute
Traceroutes
A predictable traceroute path uses PTR records on its routers to spell lines from “American Pie”, turning reverse DNS into a lyric display.
Bad Horse traceroute
Traceroutes
A traceroute to bad.horse spells lyrics through reverse-DNS names; signed.bad.horse adds a separate Easter egg in its TLS certificate chain.
Christmas traceroute
Traceroutes
A static traceroute uses reverse-DNS names to reveal a Christmas tree, with each hop adding another branch to the seasonal picture.
Euro 2020 traceroute
Traceroutes
A traceroute display used live Euro 2020 scores, pairing a controlled route with DNS names to turn network diagnostics into a changing scoreboard.
IPv6 hop expansion
Traceroutes
An IPv6 traceroute uses reverse-DNS names to draw a hand; raising the hop limit reveals more of the picture one numbered hop at a time.
Singing traceroute
Traceroutes
A traceroute spells out lyrics from “Let It Snow” in the reverse-DNS names returned for each hop.
Star Wars traceroute
Traceroutes
A predictable static route sends probes through selected IP addresses whose PTR records spell a Star Wars story in ordinary traceroute output.
DNS over...
10 entries
DNS over DONUTS
DNS over...
DONUTS expands to “DNS over normal, unencrypted TCP streams”: a deliberately literal reminder that DNS can run over a simple stream transport.
DNS over IRC
DNS over...
An IRC channel carries dynamic DNS update requests; the published answers still come from DNS, while chat serves as the separate change path.
DNS over Mastodon
DNS over...
A Mastodon-linked resolver experiment combines federated social messaging with DNS queries and DNSSEC-based authentication.
DNS over phone
DNS over...
DialDNS lets a caller ask a recursive resolver questions by telephone, turning spoken interaction into a novel DNS client interface.
DNS over Signal
DNS over...
A Signal conversation presents DNS questions and answers as secure messages, exposing the resolver exchange through a familiar chat interface.
DNS over SMS
DNS over...
SMS carries a compact representation of DNS questions and replies, demonstrating a constrained alternative to the usual UDP or TCP exchange.
DNS over Telegram
DNS over...
A Telegram bot accepts a DNS question in chat and returns the resolver’s answer as a message, placing lookup behind a messaging interface.
DNS over Twitter
DNS over...
A short-lived social account accepted DNS lookup requests and posted answers, using a platform API as the client interface.
DNS over XMPP
DNS over...
XEP-0418 describes how XMPP can carry DNS requests and responses, bringing resolver lookups into a formal messaging extension.
DNS ping
DNS over...
This project recasts a ping-style diagnostic as DNS exchanges, exploring how a familiar reachability check changes when a resolver is the path.
Tools and toys
15 entries
Blogging via DNS
Tools and toys
txtrex stores blog posts in TXT records: query one name to list posts and another to retrieve a post, making publishing possible with DNS alone.
DNS calculator
Tools and toys
A Reverse Polish calculator accepts operands in a DNS name and returns a dynamically computed answer, a small service you can query with dig.
DNS geocaching
Tools and toys
A carefully formed DNS query retrieves a geocaching clue in TXT data, turning the resolver into a lightweight interface for a field game.
DNS text adventure
Tools and toys
Players issue DNS queries as game actions and read story text in the answers; round-robin responses can add chance to the adventure.
DNS TXT toys
Tools and toys
These TXT-record experiments return ASCII art, mazes, QR codes, music, and games, showing how one textual answer format can support many toys.
DNS weather
Tools and toys
The Drink DNS server returns current or next-day weather in TXT answers; encode a city and time in the queried name to retrieve the report.
dns.toys
Tools and toys
dns.toys exposes small utilities through crafted DNS names, including currency conversion, world time, IP echo, number-to-words, and a usable slider range.
Drink DNS server
Tools and toys
Drink is Stéphane Bortzmeyer’s experimental authoritative DNS server: query different names and record types for dynamic answers such as greetings, client addresses, and diagnostics.
Google DNS cartoon
Tools and toys
This comic imagines Google focusing on its 8.8.8.8 public resolver, a cultural snapshot of how visible public DNS became.
HTML over DNS
Tools and toys
A web client retrieves page content from DNS answers while a conventional server supplies the surrounding page, blurring lookup and content delivery.
IP to ASN
Tools and toys
Team Cymru maps an IP address to its autonomous system number through a structured DNS query, giving network operators a scriptable routing lookup.
ISS location
Tools and toys
A DNS LOC record publishes geographic coordinates for the International Space Station, making a rarely used record type answer a live question.
My IP over DNS
Tools and toys
A resolver query reports the client address visible to the DNS service, which can differ from the address configured on the device.
Wikipedia over DNS
Tools and toys
A DNS query triggers a Wikipedia lookup and returns the result in an answer, using DNS as a text retrieval path for clients with limited connectivity.
Wordle over DNS
Tools and toys
Each DNS query submits a Wordle-style guess and the answer reports game state, expressing an interactive loop in short DNS messages.
Tunnelling
6 entries
DNS tunnelling
Tunnelling
DNS tunnelling encodes data in query names and answers to create a constrained communications channel, a pattern with both legitimate and harmful uses.
dnscat2
Tunnelling
dnscat2 carries a full TCP/IP session through DNS and supports interactive traffic such as files and messages; its DNS-like appearance makes monitoring important.
FTP over DNS
Tunnelling
FToDNS adapts file-transfer exchanges to DNS queries and answers, splitting data across a transport with strict size and timing limits.
HTTP over DNS
Tunnelling
A browser tunnel encodes arbitrary request strings in DNS subdomain labels and reconstructs them at the far end, showing the overhead of HTTP over DNS.
IP over DNS
Tunnelling
iodine builds an IP tunnel between two endpoints over DNS, so other IP traffic can use the link, with low throughput and DNS-shaped constraints.
VPN over DNS
Tunnelling
The Android app SlowDNS presents a VPN carried over DNS, an inventive option for networks that allow DNS but restrict other traffic.
Other things
11 entries
AI chatbot over DNS
Other things
An experimental chatbot accepts conversational requests as DNS lookups, trading a familiar interface for DNS-sized questions and answers.
BIMI records
Other things
BIMI uses DNS records to point mail systems to brand logos; the talk notes that DMARC must be configured before the logo display can be used.
CatDNS
Other things
CatDNS is an intentionally playful authoritative DNS server: ask it for a name and it answers with a cat-themed result.
DNS configuration management
Other things
A Route 53 proposal puts machine configuration in DNS records, using lookups in place of tools such as Puppet, Ansible, or Chef.
DNS key-value store
Other things
DNSKV is a generic public key-value service: names identify keys and DNS answers return values, backed by caches distributed across recursive resolvers.
DNS NoSQL store
Other things
A NoSQL experiment treats names in a DNS zone as hierarchical keys and their records as values, while inheriting DNS caching and update semantics.
DNSFS cache
Other things
DNSFS layers filesystem operations over DNS and resolver caches; its author demonstrated the design by streaming an MP3 through the DNS-backed filesystem.
Images in DNS
Other things
This experiment divides image data into DNS-sized fragments and reassembles them at the client, stretching a lookup protocol into bulk transfer.
Malware in DNS records
Other things
Malware can hide payload data in DNS record content when downstream tools trust or mishandle answers; this is a defensive case study.
MP3 over DNS
Other things
A shell pipeline requests encoded audio fragments through DNS, rebuilds the bytes, and plays them: an intentionally inefficient media transport.
NUM contacts database
Other things
NUM built a DNS data protocol with an SDK and npm modules; its Yellow Pages example retrieves structured company contacts through public resolver infrastructure.