Tips rond overstappen tussen ISPs:
[Wayback/Archive] Goedkoop vast internet is soms best duur – Wordt dit de zomer van goedkoper internet? – Achtergrond – Tweakers
--jeroen
Goedkoop vast internet is soms best duur – Wordt dit de zomer van goedkoper internet? – Achtergrond – Tweakers
Posted by jpluimers on 2025/11/17
Posted in Internet, ISP, LifeHacker, Power User, Uncategorized | Leave a Comment »
Hacking in Progress or HIP ’97 – corbosman on Twitter: “Just found this highly advanced drawing of the network setup at HIP97. The ??? probably meant we didn’t have the hardware for it yet.”
Posted by jpluimers on 2025/11/17
Such a cool historic artefact: [Wayback corbosman on Twitter: “Just found this highly advanced drawing of the network setup at HIP97. The ??? probably meant we didn’t have the hardware for it yet.”
It is a nice addition to the existing HIP97 information, of which some is at:
- Hacking in Progress – Wikipedia
- [Wayback/Archive] Hacking In Progress archive of the HIP97 site (via [Wayback/Archive] Hacking in Progress – Monoskop as the original web-site is down and few pages had a Wayback Machine link)
- [Wayback/Archive] Hacking In Progress version of the page after the conference ended.
- [Wayback/Archive] Hacking in Progress 1997 as part of the museological portfolio of the original we-site designer: [Wayback/Archive] Jolie Fraanje Martin van der Klis, portfolio, curriculum vitae.
- [Wayback/Archive] Hacking in Progress 1997 – YouTube (great documentary with lots of interviews and live usage of the HIP97 web-site and of course Jolt Cola: early use of the now ubiquitous energy drinks)
This is the diagram of the unique network [Wayback/Archive] corbosman on Twitter: “@bwgveer @Quux_NL The fact we were able to bring 6mbit into a field in the middle of no where in 1997 (the era of dialup) was quite a feat.”:
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Posted in Conferences, History | Leave a Comment »
Een paar linkjes waar Jan Disselkoen genoemd wordt
Posted by jpluimers on 2025/11/16
Het is al bijna 20 jaar geleden dat Jan Disselkoen overleed, en doordat hij al in 1995 permanent werd uitgeschakeld is er vrijwel niets op internet over hem te vinden.
Toch jammer, want hij was naast een aimabele man ook een erg goede radiotechnicus bij de NPO en haar voorlopers.
In de studio de rust zelve, dat kun je op deze twee video’s zien (de eerste een fragment in zwart-wit, de laatste ruim 12 minuten in kleur waarop Jan rond 10:00 achter de mengtafel zichtbaar is tijdens de allereerste uitzending van Radio Veronica als Veronica Omroep Organisatie in het publieke bestel om 08:00 op 28 december 1975 tijdens de opening van Hilversum 4).
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Posted in About, History, Personal | Leave a Comment »
More Apple ][*, //* II* and classic Macintosh hardware upgrades
Posted by jpluimers on 2025/11/14
The mini micro classic Apple emulators related post last week became way too big, so here is the classic Apple 2/Macintosh hardware upgrade part follow-up I announced in Some notes on mini/micro Apple //e emulators.
Last week, I mentioned [Wayback/Archive] ARC Javmaster – YouTube. Let’s continue from there for an even bigger post (:
Javmaster actually has a shop at [Wayback/Archive] Welcome to the 8-bit stuff store – 8 bit stuff cool retro computer 3D gadgets and geekery with a lot of interesting (mainly Apple ][ era related) retro things like:
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Posted in //e, 6502, Apple, Apple ][, Classic Macintosh, History, Macintosh SE/30, Power User, Retrocomputing | Tagged: 12, 156, 25, 3dprint, 3dprinting, 4, Apple, appleiigs, AprilApples | Leave a Comment »
Wlz PGB tarieventabel 2025 (voor budgethouders met indicatie voor verblijf)
Posted by jpluimers on 2025/11/14
Ik had dit vergeten te schedulen: [Wayback/Archive] r248773-202409-zk-tarieventabel-pgb-2025-web.pdf [Wayback PDF View/PDF View]
Het wordt belangrijk omdat we overwegen van Wlz gebaseerde Zorg in Natura terug te gaan naar Persoonsgebonden Budget (PGB).
--jeroen
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Posted in About, LifeHacker, Personal, Power User | Leave a Comment »
Some notes on running Postfix inside a docker container
Posted by jpluimers on 2025/11/14
The plan was to run a Postfix secondary MX inside a docker container.
Below are many links that might help me to get that going.
For now, I think this is the shortlist of solutions to try:
- Docker Mailserver
- Mailcow
- Mailu
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Posted in *nix, *nix-tools, Cloud, Communications Development, Containers, Development, Docker, Infrastructure, Internet protocol suite, Kubernetes (k8n), postfix, Power User, SMTP | Tagged: 254, 29, 52, 787, DMARC, domains, set | Leave a Comment »
Best 404 page ever? : ProgrammerHumor
Posted by jpluimers on 2025/11/13
While doing some ASCII art blog-post drafts cleanup, I bumped into the (now deleted) [Wayback/Archive] Best 404 page ever? : r/ProgrammerHumor which pointed to the (also now deleted).
I got there via my (not deleted!) blog post Why I like PlantUML.
So I dug up the old archived copy of that PlantUML 404-page and made gist out of it.
I soon realised this was all encoded stuff, seemingly a mix of a ROT13 variation and some other shifting around.
Luckily the original page mentioned in the Reddit post was way easier, so I put that in a gist too.
Bot are below the blog-signature. Enjoy!
Oh, and the full text of course above the signature:
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Posted in ASCII, ASCII art / AsciiArt, CSS, Development, Encoding, Fun, HTML, HTML5, JavaScript/ECMAScript, Scripting, Software Development, Web Development | Leave a Comment »
2023 PDF special voor alle leden: GUI’s programmeren met Python | MagPi
Posted by jpluimers on 2025/11/13
[Wayback/Archive] PDF special voor alle leden: GUI’s programmeren met Python | MagPi
Via: [Wayback/Archive] MagPi Nederland on Twitter: “PDF special voor alle leden: gui’s programmeren met python #raspberrypi #python”
Download:
[Wayback/Archive] https://www.magpi.nl/files/attachment/35 (202209131320GUI NL.pdf).
Guizero: Read the rest of this entry »
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Posted in Development, Hardware Development, Python, Raspberry Pi, Scripting, Software Development | Tagged: Python, RaspberryPi | Leave a Comment »
This is nice #geekporn. ASCII Art that’s truly useful.…
Posted by jpluimers on 2025/11/12
I forgot both to archive this 10+ year old G+ post and schedule a blog post about it This is nice #geekporn. ASCII Art that’s truly useful.….
ASCII to bezier drawn images in a very clever way.
Found it back when searching for prior blog posts on ASCII art, because of my yesterday’s blog-post ASCII Art Archive, so here it finally is: the links about how to go from ASCII art to bezier images. Have fun!
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Posted in .NET, ASCII art / AsciiArt, C#, Delphi, Development, FireMonkey, Fun, ObjectiveC, Ruby, Software Development | Tagged: geekporn | Leave a Comment »
roehling/postsrsd: Postfix Sender Rewriting Scheme daemon
Posted by jpluimers on 2025/11/12
This finally made me perform the (long overdue) migration from Sendmail to Postfix:
The Sender Rewriting Scheme (SRS) is a technique to forward mails from domains which deploy the Sender Policy Framework (SPF) to prohibit other Mail Transfer Agents (MTAs) from sending mails on their behalf. With SRS, an MTA can circumvent SPF restrictions by replacing the envelope sender with a temporary email address from one of their own domains. This temporary address is bound to the original sender and only valid for a certain amount of time, which prevents abuse by spammers.
[Wayback/Archive] roehling/postsrsd: Postfix Sender Rewriting Scheme daemon
Via a long queste to figure out why Gmail every now and then bounces forwarded messages because of Sender Policy Framework (SPF). Below are a few of the links that brought me here in mostly reverse order, but first some links that should help me further on the topic of Postfix virtual aliases.
The sendmail setup had some features not covered below (like a catch-all forward for email to addresses virtual domains not covered by a virtual alias) which I hopefully can cover later.
One thing learned both over the past decades and related postfix material: use separate servers or containers for each of your functions. So do not mix web-hosting, outgoing mail, incoming mail, fail2ban and others on the same server.
Links:
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Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, postfix, Power User, sendmail, SMTP | Tagged: Reload | Leave a Comment »
The Wiert Corner - irregular stream of stuff 