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 ‘Infrastructure’ Category

Three dashes or a rendered horizontal table at the top of your GitHub markdown document? That’s YAML metadata

Posted by jpluimers on 2025/01/22

Many Markdown documents on GitHub have three dashes (---) at the top (and rendered a horizontal table displays).

I didn’t know this markdown construct, and it appears to be GitHub specific: it is a way to render YAML metadata (for instance used while blogging).

So I searched for [Wayback/Archive] three dashes table markdown – Google Search and found [Wayback/Archive] Viewing YAML Metadata in your Documents | The GitHub Blog.

Well, actually… Read the rest of this entry »

Posted in Blogging, Configuration Management, Development, Lightweight markup language, MarkDown, Power User, SocialMedia, Software Development, YAML | Leave a Comment »

Latest Products/Feature Request Board topics – Ring Community

Posted by jpluimers on 2025/01/03

Yup, I have been in the Ring ecosystem since way before Amazon took them over, and it is kind of hard to part from the useful cameras, so here is for my link archive: [Wayback/Archive] Latest Products/Feature Request Board topics – Ring Community

Via two suggestions I did:

Read the rest of this entry »

Posted in Amazon.com/.de/.fr/.uk/..., Cloud, Hardware, Infrastructure, IoT Internet of Things, LifeHacker, Network-and-equipment, Power User, Ring Doorbell/Chime (Amazon) | Leave a Comment »

How Discord Supercharges Network Disks for Extreme Low Latency

Posted by jpluimers on 2024/12/27

A while ago there was an interesting point of using tiered md to both obtain low read latency and write safety on the Google Cloud Platform in [Wayback/Archive] How Discord Supercharges Network Disks for Extreme Low Latency

It is an interesting approach to universally tune performance within the sketched boundaries, but raised some questions as their aim was improving ScyllaDB performance and Unix-like platforms on Google Cloud Platform can supports ZFS.

In this case Discord wanted to improve their ScyllaDB that was already read/written from GCP Persistent Storage and used tiered md to improve that.

Read the rest of this entry »

Posted in *nix, *nix-tools, Cloud, GCP Google Cloud Platform, Google, Hardware, Infrastructure, NVMe, Power User, RAID, SSD | Leave a Comment »

den on Twitter: “Kubernetes.” portrayed by Seinfeld characters (Engineering Festivus)

Posted by jpluimers on 2024/12/18

At the end of 2020, in the midst of the Covid-19 crisis, [Wayback/Archive] den (@DennisCode) / Twitter started [Wayback/Archive] Engineering Festivus

The only thing 2020 needed is Seinfeld making a career change and getting into tech.

It is a series of IT parodies that at the time of writing just had its’ 35th episode: [Wayback/Archive] den on Twitter: “Kubernetes.”

Kubernetes

Kramer decided to use Kubernetes for his website. Jerry tries to explain what that entails. Kramer is adamant to do it all himself.

Read the rest of this entry »

Posted in Amazon.com/.de/.fr/.uk/..., AWS Amazon Web Services, Cloud, Cloud Development, Containers, Development, Docker, Infrastructure, Kubernetes (k8n), Software Development | Leave a Comment »

Florian Haas on Twitter: alias kubectl=”TZ=Etc/UTC kubectl”; You’re welcome

Posted by jpluimers on 2024/12/10

Sometimes you need to see a tiny bit of code to have this “aha moment”. One for me was a few years back:

[Wayback/Archive] Florian Haas on Twitter: “alias kubectl="TZ=Etc/UTC kubectl" You’re welcome.”

Read the rest of this entry »

Posted in *nix, *nix-tools, Cloud, Containers, Docker, Infrastructure, Kubernetes (k8n), Power User | Leave a Comment »

Pricing | Better Uptime

Posted by jpluimers on 2024/12/06

Reminder to show how well my experimentation with [Wayback/Archive] Better Uptime went and how they compare to [Wayback/Archive] UptimeRobot.

For now I am at this plan in [Wayback/Archive] Pricing | Better Uptime:

Free:

  • e-mail alerts
  • 3-minute checks
  • 10 monitors

This suffices to keep an eye on the modest IT infrastructure at both our home and the one from my mentally retarded brother.

Note that other prices on that pages are per month. Despite the default selection being “annual plan” the very light grey and thin “/mo” on a black ground indicates they are still per month, but you get 20% discount with the annual plans).

Read the rest of this entry »

Posted in *nix, Amazon SES, Amazon.com/.de/.fr/.uk/..., BetterUptime, Cloud, Infrastructure, Monitoring, Power User, Uptimerobot | Leave a Comment »

Is it Pokémon or Big Data?

Posted by jpluimers on 2024/12/03

Fron a while ago but still relevant [Wayback/Archive] Is it Pokémon or Big Data?.

It is a cool experiment to test your own knowledge or for fun to assess recruiters or candidates (;

And it is open source too:

Read the rest of this entry »

Posted in Cloud, Cloud Development, Conference Topics, Conferences, Development, Event, Fun, Infrastructure, LifeHacker, PokemonGo, Power User, Software Development | Tagged: | Leave a Comment »

The Twelve-Factor App

Posted by jpluimers on 2024/11/21

Still relevant: [Wayback/Archive] The Twelve-Factor App and [Wayback/Archive] 12 Fractured Apps — Medium

Once Docker hit the scene the benefits of the 12 Factor App (12FA) really started to shine. For example, 12FA recommends that logging should be done to stdout and be treated as an event stream. Ever run the docker logs command? That’s 12FA in action!

Via

–jeroen

Posted in Back-End Development, Cloud Development, Communications Development, Conference Topics, Conferences, Deployment, Developing scalable systems, Development, DevOps, Distributed Computing, Event, Software Development | Leave a Comment »

2014 memory: TL;DR Thank you! You’re awesome! Let’s do it again! • GDG DevFest Netherlands

Posted by jpluimers on 2024/11/08

10 years ago, I decided to step out of my comfort zone and attend the [Wayback/Archive] GDG DevFest Netherlands 2014.

Until then, on the mobile front, I only had deep experience with the .NET Compact Framework, on the cloud framework I had no real experience: my experience were (sometimes huge) systems running in private data centers communicating with various protocols over SNA and TCP/IP (and way before that: UUCP and dial-up) and on the programming front my strengths were .NET and Delphi (with truckloads of scripting) and no experience in Go or Dart (Rust was invented a year later).

So I was really happy with the [Wayback/Archive] TL;DR Thank you! You’re awesome! Let’s do it again! • GDG DevFest Netherlands

I think this comment by Jeroen Wiert Pluimers on a G+ post is one of the best complements we’ve got:
“Thanks for organizing this. It was a great conference! A great mix of things outside my comfort zone and things I could relate to from a very different perspective: wonderful and inspiring.”

G+ plus is gone, but this memory will last forever as this was a start widening my horizon learning about GDG like I knew about SDN*, Borland/Inprise/Codegear/Embarcadero DevRel and Microsoft DevRel.

Related links (they repeated the DevFest in 2015 as well):

Read the rest of this entry »

Posted in Cloud, Cloud Development, Development, GCP Google Cloud Platform, Google, Infrastructure, Mobile Development, Power User, Software Development | Leave a Comment »

Block 185.235.84.0/22 (which ad broker criteo – used by WetterOnline/WeerOnline/others port-scans) via Sven222@Friendica Social Network

Posted by jpluimers on 2024/10/31

[Wayback/Archive] Friendica Social Network | Sven222 @ Friendica Social Network:

Also, falls jemand UFW am laufen hat und keinen Bock auf criteo hat:
edited: UFW Regel nach Hinweis aus Kommentaren angepasst.
ufw deny out from any to 185.235.84.0/22

Or [Wayback/Archive] Tobias Klausmann: “@sven222 Bei mir ist nftables …” – mas.to:

@sven222 Bei mir ist nftables statt ufw, ich hab dann das hier gemacht:

ip daddr 185.235.84.0/22 tcp dport 443 jump rd
ip daddr 185.235.84.0/22 tcp dport 80 jump rd

rd” it eine chain, die normal rejectet (also wie “port ist zu” aussieht), aber bei hohen Paketraten zu “drop” wechselt.

Oh, and WetterOnline were the ones that forced the German state weather agency to limit the usability of their free app: [Wayback/Archive] BGH-Urteil: Staatlicher Wetterdienst muss Gratis-App beschränken | heise online.

For that reason alone, WetterOnline and their obvious local brands are blocked here, as is criteo.

If you want to read more: [Wayback/Archive] WetterOnline | DE – Criteo.com

--jeroen

Posted in Firewall, Power User | Leave a Comment »