The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

  • My badges

  • Twitter Updates

  • My Flickr Stream

  • Pages

  • All categories

  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 2,466 other followers

Archive for September 2nd, 2021

For my link archive: DNS over https

Posted by jpluimers on 2021/09/02

DNS over HTTPS

For my link archive:

JSON DNS output

Some DNS over HTTSP providers support dns-json, which Cloudflare delivers non-pretty printed.

To pretty print in the same order as the input, pipe through json_pp or python -m json.tool which however will sort (either alphabetically or by dictionary hash) the output.

If you like jq and colourised output, then you can pipe through jq .  as well  (which does not sort the nodes).

Piping curl output requires the curl --silent parameter to suppress progress reporting.

See these for more information:

Example:

Read the rest of this entry »

Posted in Communications Development, Development, DNS, HTTP, Internet, Internet protocol suite, Power User, Software Development, TCP, TLS | Leave a Comment »

comex: “Hiding video streams inside PNGs uploaded to Google Drive … How does it get the browser to skip the PNG header”

Posted by jpluimers on 2021/09/02

Wondering what people now are using to store video uploads on cheap and fast network sites: [WayBack] comex on Twitter: “Hiding video streams inside PNGs uploaded to Google Drive: https://t.co/rmK8jicJYl (But what does the m3u8 look like? How does it get the browser to skip the PNG header?)” explained the 2019 situation:

–jeroen

Read the rest of this entry »

Posted in Development, Media, Media Streaming, Power User, Software Development, Video | Leave a Comment »

Coming Back to Old Problems: How I Finally Wrote a Sudoku Solving Algorithm – DEV Community 👩‍💻👨‍💻

Posted by jpluimers on 2021/09/02

It is always fun to see how Sudoku solving algorithms are created and implemented. This is no exception: [WayBack] Coming Back to Old Problems: How I Finally Wrote a Sudoku Solving Algorithm – DEV Community 👩‍💻👨‍💻

(backtracking image from Wikimedia commons)

For a visual Sudoku solver, I usually take [WayBack] Sudoku Solver by Andrew Stuart. Shows the logic behind solving Sudoku square by square which is part of [WayBack] SudokuWiki.org – Getting Started having many visual explanations on how to solve these puzzles, for instance:

It’s a kind of sudo ku, but visually and never failed me solve one.

–jeroen

Posted in Algorithms, Development, Python, Scripting, Software Development | Leave a Comment »

 
%d bloggers like this: