Sysadmin Tools πŸ‡ΊπŸ‡¦
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Sysadmin/DevOps tools, news and other interesting things from modern IT world.
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Which Kubernetes is the Smallest? Examining Talos Linux, K3s, K0s, and More

https://www.siderolabs.com/blog/which-kubernetes-is-the-smallest

#k8s #k3s #k0s #microk8s #talos #linux #rke
nlbw2collectd

This collectd lua plugin allows you to put Nlbwmon statistics directly to Collectd (luci-app-statistics). By default on Openwrt statistics are uploaded every 30 seconds, so it allows you to get pseudo realtime statistic about the traffic on your router.


https://github.com/mstojek/nlbw2collectd

#openwrt #linux #monitoring #network #observability
Talos Operator

talos-operator enables to bootstrap Talos Kubernetes clusters using custom controllers. It allows you to create and manage Talos clusters in different environments, such as bare metal, virtual machines or even in Kubernetes-in-Kubernetes method by using Talos' container support.


https://github.com/alperencelik/talos-operator

#talos #linux #k8s #kubernetes #docker
0x.tools

A set of open-source utilities for analyzing application performance on Linux. It has a goal of deployment simplicity and minimal dependencies, to reduce friction of systematic troubleshooting. No need to install kernel modules or heavy monitoring frameworks.


https://0x.tools

#ebpf #opensource #linux #tos
Microsoft is plugging more holes that let you use Windows 11 without an online account

https://www.theverge.com/news/793579/microsoft-windows-11-local-account-bypass-workaround-changes

#microsoft #linux
dalec

Produce secure packages and containers with declarative configurations


https://github.com/Azure/dalec

#linux #devops #containers #packages #security
emuko

Fast RISC-V emulator written in Rust. Boots Linux.


https://github.com/wkoszek/emuko

#linux #riscv #emulator
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From Milliseconds to 26 Nanoseconds: How a $20 eBay SFP Module Beat My Entire NTP Setup

https://austinsnerdythings.com/2026/04/26/ptp-osa5401-26-nanoseconds-raspberry-pi

#raspberry #sfp #ntp #linux
How will AI change operating systems? Part 1: Ubuntu and Linux

https://newsletter.pragmaticengineer.com/p/ubuntu-and-ai

#ubuntu #linux #ai
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PREEMPT_NONE Is Dead; Your Postgres Probably Doesn’t Care

A benchmark came out of AWS earlier this month showing PostgreSQL throughput on Linux 7.0 dropping to 0.51x what the same workload produced on Linux 6.x. The Phoronix headline wrote itself. Hacker News did what Hacker News does. By the end of the week, I had been asked by three separate clients whether they needed to hold their kernel upgrades.
They don’t. Almost nobody does. The regression is real, but it’s a narrow, loud artifact of a benchmark configuration that was already misconfigured for a 96-vCPU box with 100+ GB of shared memory. The headline undersells how much this is a β€œdon’t do that” story and oversells how much this is a Linux-broke-Postgres story


https://thebuild.com/blog/2026/04/23/preempt_none-is-dead-your-postgres-probably-doesnt-care

#linux #postgres #benchmark
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https://copy.fail

Most Linux LPEs need a race window or a kernel-specific offset.
Copy Fail is a straight-line logic flaw β€” it needs neither.
The same 732-byte Python script roots every Linux distribution shipped since 2017.


#linux #kernel #cve
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