I totally agree with the first comment of [Wayback/Archive] Naming Files and Directories the Right Way – YouTube as it holds not just for file management, but for naming anything including software development:
@yorickwolter
--jeroen
Archive for the ‘Linux’ Category
Naming Files and Directories the Right Way – YouTube
Posted by jpluimers on 2026/01/29
Posted in *nix, Apple, BSD, Development, Linux, Mac OS X / OS X / MacOS, Power User, Software Development, Windows | Leave a Comment »
LinuxCND: The Raspberry Pi that ships other Raspberry Pis – Pi Australia
Posted by jpluimers on 2025/11/11
Cool practical application of LinuxCNC: [Wayback/Archive] The Raspberry Pi that ships other Raspberry Pis – Pi Australia
LinuxCNC controls CNC machines. It can drive milling machines, lathes, 3D printers, laser cutters, plasma cutters, robot arms, hexapods, and more.
Via [Wayback/Archive] Frans van Berckel on Twitter: “@geerlingguy So, there is a Raspberry Pi, that ships other Raspberry Pis?”
–jeroen
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Posted in *nix, *nix-tools, Development, Hardware Development, Linux, Power User, Raspberry Pi | Leave a Comment »
Notes on Oracle Cloud Free Tier (via «I got the “free forever” 4 core/24GB ARM VM from Oracle Cloud. What should I do with it?»)
Posted by jpluimers on 2025/10/02
Some notes (mainly links) on the Oracle Cloud Free Tier as at the time of writing it is the only provider with a “free forever” tier.
In the past for FOSS, there was [Wayback/Archive] Fosshost on Twitter: “@d_feldman Check out fosshost.org for an alternative to Oracle Cloud for ARM/AArch64. We are free, open source and you will never get bill shock. Open source projects must apply only.”, but at the end of 2022 they started to wind down their services as per [Wayback/Archive] Fosshost to Sunset Tenant Services
Fosshost to Sunset Tenant Services
At this time, Fosshost is deeply sorry to announce we are no longer able to continue offering our services.
Because of this, we strongly recommend all Fosshost tenants to backup their data immediately, and migrate elsewhere as soon as possible.
Oh before you begin: if you need a reverse DNS record then be sure to request that as soon as your free tier starts: at that time you have USD 300 credits for running paid services which includes the support to request reverse DNS records.
Anyway, many links on the Oracle OCI Cloud Free Tier (especially the ARM deal is great: lots of RAM as compared to the x86 VMs):
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Posted in CentOS, openSuSE, OracleLinux, RedHat, SuSE Linux, Ubuntu, Uncategorized, Windows, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022 | Leave a Comment »
A PDF can run JavaScript, which means it can hosts a VM for Linux or Doom
Posted by jpluimers on 2025/06/12
A few years back, this question popped up: [Wayback/Archive] Embedding JS into PDF : cybersecurity
The answer is yes, and you can take this far. Virtualisation far. Which is what these repositories – both by [Wayback/Archive] ading2210 · GitHub – did:
- [Wayback/Archive] GitHub – ading2210/doompdf: A port of Doom (1993) that runs inside a PDF file
- [Wayback/Archive] GitHub – ading2210/linuxpdf: Linux running inside a PDF file via a RISC-V emulator
Via [Wayback/Archive] Angry Nerds Podcast – YouTube -> [Wayback/Archive] Angrynerds 235 – Automasturbator – YouTube -> 1540 seconds at [Wayback/Archive] Angrynerds 235 – Automasturbator – YouTube – t=5040s
1:24:00 Hadden we Doom in PDF-vorm al eens genoemd? https://github.com/ading2210/doompdf Er is een vervolg, nu gewoon linux draaien in een PDF https://github.com/ading2210/linuxpdf Dus in feite gewoon een PDF-VMetje
Related:
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Posted in *nix, Development, JavaScript/ECMAScript, Linux, Power User, Software Development, Virtualization | Leave a Comment »
Setting Up a Raspberry PI with a German Mac Keyboard – Seaside Testing
Posted by jpluimers on 2025/05/08
[Wayback/Archive] Setting Up a Raspberry PI with a German Mac Keyboard – Seaside Testing.
Reminder to self: figure out where parameters for /etc/default/keyboard are documented in case I want to use USB keyboards:
- from other manufacturers than Apple
- with other language layouts
Via: [Wayback/Archive] Stephan Kämper (@seasidetesting@mastodon.social) on Twitter: “Setting Up a Raspberry PI with a German Mac Keyboard”
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Posted in Debian, Development, Hardware, Hardware Development, Keyboards and Keyboard Shortcuts, KVM keyboard/video/mouse, Linux, Power User, Raspberry Pi, Raspbian | Leave a Comment »
“NAMED_CONF_INCLUDE_FILES” has been gone from /etc/sysconfig/named since OpenSuSE 15.4
Posted by jpluimers on 2025/04/28
In the past, I used to modify /etc/sysconfig/named and add entries to the NAMED_CONF_INCLUDE_FILES setting, then run /usr/share/bind/createNamedConfInclude
to generate /etc/named.conf.include.
As of OpenSuSE 15.4, /usr/share/bind/createNamedConfInclude has become an empty file and NAMED_CONF_INCLUDE_FILES got removed and NAMED_INITIALIZE_SCRIPTS introduced.
So now I changed my playbooks to manually generate /etc/named.conf.include and include it form /etc/sysconfig/named.
Since I hardly perform these new installations, it took a few years for me to find out about this change. Upgrading existing systems somehow kept the generated file and included it.
Related links with quotes as it was hard to find out what changed and how to work around and I wasn’t the only one bump into issues:
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Posted in *nix, *nix-tools, bash, bash, bind-named, Development, DNS, LEAP, Linux, openSuSE, Power User, Scripting, Software Development, SuSE Linux | Tagged: include | Leave a Comment »
How to send raw network packets in Python with tun/tap
Posted by jpluimers on 2025/02/20
For my link archive: [Wayback/Archive] How to send raw network packets in Python with tun/tap
I never really played around with tun and tap, so this is a nice opportunity to do so. I know they were the base for VPN on Linux, but just now I learned TUN/TAP are not available on nx, but also on Windows. Cool!
Via [Wayback/Archive] 🔎Julia Evans🔍 on Twitter: “how to send raw network packets in Python with tun/tap …”
--jeroen
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Posted in *nix, *nix-tools, Development, Ethernet, Hardware, Linux, Network-and-equipment, Power User, Python, Scripting, Software Development | Leave a Comment »
nixCraft on Twitter: “Here is how to check if you are affected by a known vulnerability in your hardware (CPU) when using Linux including mitigation status”
Posted by jpluimers on 2025/01/10
[Wayback/A] nixCraft on Twitter: “Here is how to check if you are affected by a known vulnerability in your hardware (CPU) when using Linux including mitigation status: grep -r . /sys/devices/system/cpu/vulnerabilities/“
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Posted in *nix, *nix-tools, grep, Linux, Power User | Leave a Comment »
Some initial steps solving the Raspberry Pi (3 and 4) issue where OpenSuSE LEAP does reach Graphical Target but Tumbleweed does not
Posted by jpluimers on 2024/12/13
This is from years ago, but I forgot to schedule it, so here it is:
Problem on an E20 (enlightenment using lightdm) image:
- LEAP 15.2 did reach Graphical Target
- Image [Wayback]
openSUSE-Leap-15.2-ARM-E20-raspberrypi3.aarch64-2020.07.08-Build1.34.raw.xz[Wayback] .packages [Wayback] .raw.xz.sha256 [Wayback] [Wayback] .raw.xz.sha256.asc
- Image [Wayback]
- Tumbleweed did not.
- Image [Wayback]
openSUSE-Tumbleweed-ARM-E20-raspberrypi3.aarch64-2020.08.15-Snapshot20200904.raw.xz[Wayback] .packages [Wayback] .raw.xz.sha256 [Wayback] [Wayback] .raw.xz.sha256.asc-
- Image [Wayback] openSUSE-Tumbleweed-ARM-E20-raspberrypi3.aarch64-2020.08.15-Snapshot20200905.raw.xz [Wayback] .packages [Wayback] .raw.xz.sha256 [Wayback] [Wayback] .raw.xz.sha256.asc
-
- Image [Wayback]
Parts of the chat transcript:
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Posted in *nix, *nix-tools, LEAP, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
Good Reddit thread regarding updating Tumbleweed: difference between zypper up (zypper update) and zypper dup (zypper dist-upgrade) repository priorities and more
Posted by jpluimers on 2024/12/02
Sometimes the best information is outside vendor forums. I think it is the case for this Reddit thread: [Wayback/Archive] Regarding updating Tumbleweed; what is the best way to do it? Appper, zypper dup, zypper up. Which one am i supposed to use? Should i be worried about the vendor changes? And why do i get a message when using ‘zypper up’ saying “The following 35 package updates will NOT be installed”? : openSUSE
Note that specific to openSuSE Tumbleweed you should prefer zypper distr-upgrade over zypper update as per [Wayback/Archive] TUMBLEWEED zypper dup default behavior changed: what is the difference to zypper up?
Be aware this thread is about Tumbleweed, the method to update is byusing dup since it’s a new snapshot. At this point it’s your choice toupdate or not depending on your requirements. If your running out ofkernel modules supplied by third parties, then your tied to theirschedule…. Using zypper up will in the long term create more issuesas well as not supported.
This is especially true as --no-allow-vendor-change has been the default for zypper dist-upgrade for almost a decade now: [Wayback/Archive] PSA: Tumbleweed: –no-allow-vendor-change now default zypper dup behaviour : openSUSE
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Posted in *nix, *nix-tools, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
The Wiert Corner - irregular stream of stuff 