Amazon shows how not to return an HTTP 500 (Internal Server Error) result page: a page with content 500, but result HTTP 200 (OK).
[Wayback] https://www.amazon.de/errors/500
--jeroen
Example how not to return a HTPP-500 result: Amazon DE – Tut uns Leid!
Posted by jpluimers on 2025/08/14
Posted in Communications Development, Development, HTML, HTTP, Internet protocol suite, Software Development, TCP, Web Development | Leave a Comment »
MQSystems – Home Page
Posted by jpluimers on 2025/08/14
For my link archive: [Wayback/Archive] MQSystems – Home Page:
Share this:
Posted in Development, MQ Message Queueing/Queuing, Software Development, WebSphere MQ | Leave a Comment »
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:
Share this:
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 thatA 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.
Share this:
Posted in Agile, Code Quality, Code Review, Development, Software Development | Leave a Comment »
10 years ago, Toru Iwatani showed his original drafts for Pac-Man : gaming
Posted by jpluimers on 2025/08/12
I missed this back then, so here is a reminder: [Wayback/Archive] Toru Iwatani shows his original drafts for Pac-Man : gaming
Of course these had a big red stamp on them marking them classified. The detailed game experience and sprite transformations in just a few pages really shows how great Toru Iwatani was.
Images were posted first on [Wayback/Archive] Toru Iwatani shows his original drafts for Pac-Man – Imgur:
Share this:
Posted in History, Retrocomputing | 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 »
Share this:
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 »
Running DOS Programs on an Apple Silicon based Mac
Posted by jpluimers on 2025/08/11
I’m vintage, so I have some old machinery but also want to be able to run old software on newer hardware.
TL;DR: Since Apple Silicon (which is based on ARM) uses Intel Emulation for regular Mac binary programs, VMware Fusion# on Mac M* series cannot run Intel based operating systems, after some research there basically were these options:
- use VMware Fusion and run inside a Windows on ARM VM by using
- a dos emulator like DOSBox or DOSBox-X, since modern 64-bit Windows lacks the NTVDM:
Since virtual 8086 mode is not available on non-x86-based processors (more specifically, MIPS, DEC Alpha, and PowerPC) NTVDM is instead implemented as a full emulator in these versions of NT, using code licensed from Insignia’s SoftPC. Up to Windows NT 3.51, only 80286 emulation is available. With Windows NT 4.0, 486 emulation was added.
NTVDM is not included with 64-bit versions of Windows or ARM32 based versions such as Windows RT or Windows 10 IoT Core. The last version of Windows to include the component is Windows 10, as Windows 11 dropped support for 32-bit processors.
- an NTVDM replacement like NTVDMx64 or winevdm (sometimes calles otvdm)
- a dos emulator like DOSBox or DOSBox-X, since modern 64-bit Windows lacks the NTVDM:
- use a specific emulator like DOSBox-X directly on MacOS
- use a more generic emulator like QEMU based UTM
I have a VMware background on bare metal, Windows and MacOS, so I prefer it over Parallels
Links: Read the rest of this entry »
Share this:
Posted in DOSBox, DOSBox emulator, Emulators, MS-DOS, Power User, Virtualization | 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
Share this:
Posted in Development, Electronics Development, Fun, Power User | Tagged: lame, laughedanyway, nerdjoke | Leave a Comment »
Turn iPhone, iPad and Android into wireless mobile mouse / trackpad / keyboard with Remote Mouse.
Posted by jpluimers on 2025/08/08
On my list of things to try: [Wayback/Archive] Turn iPhone, iPad and Android into wireless mobile mouse / trackpad / keyboard with Remote Mouse.
Goal is to see if the iPad can function as a larger touchpad to assist drawing on my MacBook.
Links:
- [Wayback/Archive] FAQ – Remote Mouse – News & Tips
- [Wayback/Archive] Remote Mouse – News & Tips – Turn your mobile phone or tablet into a set of wireless mouse, keyboard and trackpad.
- [Wayback/Archive] Remote Mouse App Intro – YouTube
- [Wayback/Archive] Remote Mouse on the App Store (iPad version)
- [Wayback/Archive] Remote Mouse on the Mac App Store (macOS version)
Via:
- [Wayback/Archive] Use iPad as a Trackpad – Apple Community
- [Wayback/Archive] Using ipad as trackpad for PC : ipad
Query: [Wayback/Archive] use ipad as mouse – Google Suche
--jeroen
Share this:
Posted in Apple, Apple Silicon, iOS, iPad, iPhone, LifeHacker, Mac, MacBook, MacBook Retina, MacBook-Pro, Power User | 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.
Share this:
Posted in Chocolatey, Development, Power User, Windows, Windows 10, Windows 11, Windows 7, Windows 8, Windows 8.1, XML/XSD, XSD | Tagged: 101, 172, 205, 325, 374, 379, 4 | Leave a Comment »
The Wiert Corner - irregular stream of stuff 