____  _   _ ____  _  ___     __
|  _ \| \ | / ___|| |/ \ \   / /
| | | |  \| \___ \| ' / \ \ / /
| |_| | |\  |___) | . \  \ V /
|____/|_| \_|____/|_|\_\  \_/

DNS Key Value Storage (dnskv.com)

The packet messaging service for true hackers. Simple and free to use.

Too complex? See: simplified tutorial

Structure:

• Suffix all names with this domain
• options.value.key.

Insert:

• value.key.

Query:

• key.

Options:

• - option separator
• u update secret
• e exipiry
• t ttl
• d domain key (reserved for custom domains)

Update value:

• usecret.value.key.
• Key expiry is refreshed when value is updated

Time units:

• s second(s) (default)
• m minute(s)
• h hour(s)
• d day(s)
• w week(s)
• y year(s)
• Unit without number specified, defaults as 1 unit

How to use / Examples:

• Set updatetable key using update secret 'updatesecret' with value 'examplevalue' with key 'examplekey', with expiry of 1 day and ttl of 15 minutes
  uupdatesecret-ed-t15m.examplevalue.examplekey.
• For the simple examples, see the simplified tutorial

Misc fun & tech:

• A, AAAA, TXT - set record
• A, AAAA - check key or read value
• A record value format 107-101-121 returns as 127.107.101.121
• AAAA record value format 7365-6372-6574-736c-6561-6b21 returns as 2001:db8...
• TXT - read value
• Min expiry / TTL 1 minute
• Max expiry / TTL 7 days
• Default expiry 7 days / TTL 1 hour (updatable)
• When keys expire, all related data is pruned from database
• Logs - exceptions only (no IP addresses)
• Backups - no data backups / copies
• Rate limits - low (300 seconds window / RAM only)
• Statistics - hourly summary statistics (no IP addresses / DNS names)
• Status - beta (works, but still under development)
• SLA - best effort
• Security - none. All data should be considered public
• Guarantees - none
• FAQ - yes, if someone asks any questions
• Sample client - DNS Messenger (dnsmsg)
• Guess what (TXT) ping. (TXT / A) hello. (TXT) key. and (TXT / A / AAAA) echo. addresses do
• Time / date / caching - time. (TXT / A) date. (TXT / AAAA) and datetime. (TXT) - These addresses can be used to detect caching DNS servers which do not respect 1 second TTL. As well getting UTC time, date, datetime
• Custom domains / subdomains - why not?
• Private servers / instances - can be arranged
• MVP - Can be quickly improved, if necessary
• What is Domain Name System (DNS) @ Wikipedia
• Default, minimum and maximum values can be retrieved with configuration query: max-ttl, def-ttl, min-ttl, max-expiry, def-expiry, min-expiry as value and cfg as key.
• Echo - DNS data leak demonstration

Contact / Abuse / Feedback / Questions / Ideas / Tech Talk:

• email: root at [the domain]
• PGP: public key
• dns txt: your-message.feedback.
• Twitter: @dnskvcom
• Matrix: DNSKV DevOps & support chat room
• If you like this project, donations are welcome
• XKCD #1810 is missing DNS.

Last update - 2023-12-25
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