The Wiert Corner – irregular stream of stuff

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

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Archive for the ‘Development’ Category

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In case I need a small 5-port managed switch that can do port-mirroring: GS305E | Easy Smart Managed Essentials Switch | NETGEAR Support

Posted by jpluimers on 2025/08/13

[Wayback/Archive] GS305E | Easy Smart Managed Essentials Switch | NETGEAR Support which can do many-to-one port mirroring.

This is a newer and cheaper hardware revision than the:

  • GS105Ev2 (which is managed and can do port-mirroring, and is confusingly sold as GS105E-200) which in Germany already is end-of-life
  • GS105Ev1 (which is unmanaged and cannot do port-mirroring and is confusingly sold as GS105E-100) which is end-of-life but still sold

Via [Wayback/Archive] Everyone Should Have One of These – EASY Packet Capture! – YouTube who explains very well why you need a switch that can do port-mirroring, then recommends the GS105E but forgets to mention:

  • there are different revisions of the GS105E with the above drawbacks
  • there is GS305E

Related:

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Posted in Blue team, Communications Development, Development, Ethernet, Hardware, Internet protocol suite, Network-and-equipment, Power User, Red team, Security, Software Development, TCP, UDP | Leave a Comment »

Comment Only What the Code Cannot Say | by Kevlin Henney | Medium

Posted by jpluimers on 2025/08/13

Often after having taught a topic for decades, somebody rephrases it in a beautiful concise way:

[Wayback Comment Only What the Code Cannot Say | by Kevlin Henney | Medium

Kevlin has the same two quotes I have included teaching software quality for a long time:

In The Elements of Programming Style, Kernighan and Plauger note that
A comment is of zero (or negative) value if it is wrong.
Instead of writing apologies and apologia, follow Kernighan and Plauger’s advice from the 1970s:
Don’t comment bad code — rewrite it.

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Posted in Agile, Code Quality, Code Review, Development, Software Development | Leave a Comment »

Quick batch file hack to download a file calling PowerShell to do the heavy lifting

Posted by jpluimers on 2025/08/12

I needed this download-file.bat a while ago, but forgot how I found out.

It’s in this gist too: [Wayback/Archive] Quick batch file hack to download a file calling PowerShell to do the heavy lifting.

Here we go: Read the rest of this entry »

Posted in .NET, Batch-Files, CommandLine, Development, Power User, PowerShell, PowerShell, Scripting, Software Development, Windows, Windows 10, Windows 11, Windows 8.1 | Leave a Comment »

Conductor, Semiconductor and Superconductor with a twist

Posted by jpluimers on 2025/08/11

I tried finding older versions of [Wayback/Archive] 160767437_1614740178716498_1088211482313253900_n.jpg (667×960) from Facebook: Crappy Electrical jokes and Puns. 1,666 likes · 9 talking about this. Just for fun (20210315), especially as the web-site of the ultimate source seems to have died: [Wayback/Archive] Kill The Neighbours, the game that doesn’t hurt – free online puzzle game

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Posted in Development, Electronics Development, Fun, Power User | Tagged: , , | Leave a Comment »

Hopefully by now the Chocolatey .nuspec extensions and limitations are documented in a more central way

Posted by jpluimers on 2025/08/08

Chocolatey extends the NuGet file format .nuspec based XML files as base for their packages with at the time of writing very sparse and limited documentation in what it extends, why it does that and what extra limitations it imposes on the fields used inside .nuspec files.

Hopefully by now that has improved, so this post is a reminder to myself to check that out eventually.

At the time of writing, the NuGet .nuspec documentation was at [Wayback/Archive] .nuspec File Reference for NuGet | Microsoft Learn and the file format at [Wayback/Archive] NuGet.Client/nuspec.xsd at dev · NuGet/NuGet.Client. Most fields are defined as primitive data types xs:boolean, xs:string and xs:anyURI (of the 19 available primitive XML SChema (W3C) types). Some composite data types are are composed from them using local and global complexType, most using xs:all, xs:attribute or single-type unbounded xs:sequence (which all imply no particular order).

Since an XML Schema allows to both use restriction and extension on data types (the eXtensible in XML!), making them more strict is a relatively straight-forward operation and has the benefit of having these in a central place.

In the past for more than 5 years [Wayback/Archive] Is there a specification for the package format? · Issue #379 · chocolatey/choco was just pointing to the NuGet .nuspec format, but after a request to re-open new comments were made pointing to a current issue (basically a stub, but still) and a Chocolatey nuspec.xsd file, yay!

Still it was a quest to figure out the additional rules they have added, especially since the documentation was sparse and sloppy.

Read the rest of this entry »

Posted in Chocolatey, Development, Power User, Windows, Windows 10, Windows 11, Windows 7, Windows 8, Windows 8.1, XML/XSD, XSD | Tagged: , , , , , , | Leave a Comment »

html – What can cause Chrome to give an net::ERR_FAILED on cached content against a server on localhost? – Stack Overflow

Posted by jpluimers on 2025/08/07

On my research list [Wayback/Archive] html – What can cause Chrome to give an net::ERR_FAILED on cached content against a server on localhost? – Stack Overflow

The reason what that back then this would fail (but worked in Firefox and Safari, and because I was in a hurry I didn’t research further): [Wayback/Archive] https://www.office.com/

This site can’t be reached

The webpage at https://www.office.com/ might be temporarily down or it may have moved permanently to a new web address.

ERR_FAILED

Thanks [Wayback/Archive] Mason Wheeler and [Wayback/Archive] Joel Davey.

Details:

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Posted in Chrome, Communications Development, Development, Encryption, HTTP, https, HTTPS/TLS security, Power User, Security, TCP, TLS, Web Browsers, Web Development | Leave a Comment »

Looking for an alternative to the (now dead) ZXing Barcode Scanner – Apps on Google Play

Posted by jpluimers on 2025/08/07

Edit 20250807: (thanks [Wayback/Archive] twm/dummzeuch!) at [Wayback/Archive] dummzeuch: “@wiert yeah, I found out about…” – Mastodon

@wiert yeah, I found out about this a few weeks ago, when I wanted to install it on my new phone.
I switched to this one:

gitlab.com/Atharok/BarcodeScan

But I haven’t used it enough to be able to make a final evaluation.

So I will try [Wayback/Archive] Atharok / Barcode Scanner · GitLab with the install from the Android App-store [Wayback/Archive] Scanner: QR Code and Products – Apps on Google Play.

Original post:

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Posted in Android, Development, Mobile Development, Software Development | Tagged: | Leave a Comment »

peter purgathofer: “… i recently found a little HDMI-fob that fakes a second screen; i can now see my presenters’ notes on the built-in screen, while the presentation is on a hallucinated second screen …” – 🌱 hci.social

Posted by jpluimers on 2025/08/06

The below post reminded me that around black friday I bought [Wayback/Archive] ADWITS 2-Pack 4K 2K 1080P 30Hz to 60Hz Support HDMI Display Emulator DDC EDID Headless Ghost Monitor Adapter Dummy Plug, Highest 4096 x 2160 @ 60Hz – Gold Colour: Amazon.de: PC & Video Games

[Wayback/Archive] peter purgathofer: “today i gave a talk, where the…” – 🌱 hci.social

today i gave a talk, where the setup was that i had to share my presentation over zoom, but i didn’t have a second screen. this usually meant that i have to forgo seeing my presenters’ notes because my notebook’s screen would be the shared presentation screen.

i recently found a little HDMI-fob that fakes a second screen; i can now see my presenters’ notes on the built-in screen, while the presentation is on a hallucinated second screen.

simple and effective.

--jeroen

Image from the Toot: [Wayback/Archive] 6af960c3f84a12e8.jpeg (2939×2821)

Posted in Development, Hardware Interfacing, HDMI, LifeHacker, Power User | Leave a Comment »

linux – Get final URL after curl is redirected – Stack Overflow (plus some Twitter scraping tricks)

Posted by jpluimers on 2025/08/06

Sometimes I need [Wayback/Archive] Redirect Checker | Check your Statuscode 301 vs 302 on the command-line, so cURL to the rescue: [Wayback/Archive] linux – Get final URL after curl is redirected – Stack Overflow. The relevant portions of answers and comments further below.

TL;DR:

Since I prefer verbose command-line arguments (you can find them at the [Wayback/Archive] curl – How To Use on-line man page) especially in scripts this HTTP GET request is what works with Twitter:

% curl --location --silent --output /dev/null --write-out "%{url_effective}\n" https://twitter.com/anyuser/status/20
https://x.com/anyuser/status/20

This failed (twitter dislikes HTTP HEAD requests):

% curl --head --location --silent --output /dev/null --write-out "%{url_effective}\n" https://twitter.com/anyuser/status/20
https://twitter.com/anyuser/status/20

Notes

Given so many of my scripts now run on zsh, I added the new-line because of command line – Why does a cURL request return a percent sign (%) with every request in ZSH? – Stack Overflow. You can strip that bit.

Note that these do not perform client side redirects, so they do not return the ultimate originating URL https://x.com/jack/status/20 (which was the first ever Tweet on what was back then called twttr) as Twitter on the client-side overwrites window.location.href with the final URL. Similar behaviour for getting the Twitter user handle of a Twitter user ID, more on Twitter tricks below.

Tweet by TweetID trick via [Wayback/Archive] Accessing a tweet using only its ID (and without the Twitter API) – Bram.us.

Further reading (thanks [Wayback/Archive] vise, [Wayback/Archive] Daniel Stenberg, [Wayback/Archive] Ivan, [Wayback/Archive] AndrewF, [Wayback/Archive] Roger Campanera, and [Wayback/Archive] Dave Baird):

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Posted in *nix, *nix-tools, bash, Batch-Files, Bookmarklet, Communications Development, Conference Topics, Conferences, CSS, cURL, Development, Event, HTTP, Internet protocol suite, JavaScript/ECMAScript, Power User, Scripting, SocialMedia, Software Development, TCP, Twitter, Web Browsers, Web Development | Tagged: | Leave a Comment »

Tootski, a sharing bookmarklet for Mastodon · GitHub

Posted by jpluimers on 2025/08/05

For my research list: [Wayback/Archive] Tootski, a sharing bookmarklet for Mastodon · GitHub

--jeroen

Posted in Bookmarklet, Development, JavaScript/ECMAScript, Mastodon, Power User, Scripting, SocialMedia, Software Development, Web Browsers | Leave a Comment »

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