Y0S2i

[Ivan Velichko @iximiuz]

A bit over a month ago, I created a tool to practice Linux - ShellGym. The tool is good on its own, and you can run it on any Linux machine. But it works best when combined with disposable VMs and spaced repetition.

Today, I'm happy to share the very first Shell Gym on iximiuz Labs:

> Meet the Linux Shell

https://t.co/Ez4RIi3BDE

It's a good match if you're only getting started with the Linux command line. The gym contains over 20 simple exercises, and you can try it right in your browser - via a web terminal connected to a real Ubuntu VM.

And since it's natively integrated with the rest of the platform, an attempted gym becomes part of your Daily Practice, and iximiuz Labs will be happy to remind you to repeat the exercise in 1, 3, 7, 14, and 30 days - until the hands-on skills really stick.

Happy hacking!

[Linux Handbook @LinuxHandbook]

We just created a course on Tmux.

It is free for all. No sign up needed.

Enjoy learning Linux with us 😎

https://t.co/bpBcKAJhOL

[Ivan Velichko @iximiuz]

SSH Tunnels or How to Become a Connectivity Wizard 🧙‍♂️

10 hands-on challenges to practice port forwarding with SSH tunnels - starting with simple local/remote port forwarding and all the way down to advanced scenarios with bastions and jump hosts:

- Access an internal debug port through an SSH tunnel https://t.co/jlaEw8y7zy
- Reach a private VPC service through an SSH bastion https://t.co/FCNs9iFojr
- Reach a remote loopback port through an SSH jump host https://t.co/peLYwVG0SJ
- Restrict SSH bastion access by user role https://t.co/74s3isK2pY
- Reach internal servers through a "no shell" SSH bastion https://t.co/3dSvgKPoJJ
- Reach a whole VPC through an SSH SOCKS proxy https://t.co/CVbU9lqQKP
- Expose a local service through an SSH reverse tunnel https://t.co/fgXYIVUWVT
- Expose a home network device through an SSH reverse tunnel https://t.co/TSSLIHIebg
- Expose a whole home network through an SSH reverse SOCKS proxy https://t.co/9KfDcqR1eM
- Replace password-based root access with a key-based admin login https://t.co/l3vK7dX5ao

Happy hacking!

[Brandon Lee @vspinmaster]

Check out 8 Modern Linux Commands I Use Instead of the Old-School Alternatives #linux #homelab #homeserver https://t.co/8YFQWSue8w

[Tom Dörr @tom_doerr]

Borg Backup Server is a self-hosted web application for centrally managing BorgBackup across multiple Linux, Mac, and Windows endpoints. It uses a lightweight agent that polls the server over HTTPS, enabling backups from behind firewalls. The tool offers full encryption, real-time progress tracking, file-level restores, and database plugins for MySQL and PostgreSQL.

https://t.co/CYQZ33q843

[Tom Dörr @tom_doerr]

Backs up your Apple Photos library by exporting originals and Live Photos to a local folder organized by capture date or directly to an Immich server.

https://t.co/R5R8nZbCFd

[Ivan Velichko @iximiuz]

iximiuz Labs has just gotten the new "learner" dashboard:

- The structure & navigation are hopefully saner now
- Cleared some space for the coming soon Shell Gyms
- Everything should be snappier and less jumpy

Last but not least, learning materials can now be "saved for later" while browsing the catalog(s) and then quickly accessed in the dashboard. A bunch of people have asked about this capability, so I'm super happy I finally shipped it.

[Guillermo Casaus @_guillecasaus]

🚨 Google acaba de liberar una de sus herramientas internas más potentes.

Ha lanzado Magika, un sistema que detecta el contenido real de cualquier archivo, aunque esté disfrazado.

Por ejemplo, malware que parece un PDF o scripts ocultos como imágenes.

Es gratis y open-source 👇

[Brady Long @thisguyknowsai]

CCleaner used to be the default way to keep a Windows machine fast.

Then it got bought, stuffed with ads and bundled crapware, and in 2017 one release was compromised and shipped malware to over 2 million people. Millions still install it every month because nothing else has really replaced it.

So, a team called AdventDev just built a free, open-source replacement.

It's called Kudu. Open the app and you get one dashboard for the whole machine.

> System cleaner for temp files, logs, caches, and crash dumps.
> Browser cleaner across every major browser.
> Gaming cleaner for launcher and shader caches.
> Registry cleaner for broken and orphaned entries.
> Startup manager that shows the actual boot impact of each program.
> Disk analyzer with an interactive treemap, so you can see where 40GB quietly disappeared to.
> Debloater that rips Windows bloatware out.
> Program uninstaller that also removes the leftovers other uninstallers leave behind.

Then it does the parts CCleaner never did.

A malware scanner with signature matching, heuristic analysis, and Windows Defender integration. A privacy shield that lets you flip 30+ Windows privacy settings from one screen: telemetry, ad ID, Cortana, tracking. Secure delete that overwrites files with random data before removing them, so nothing can recover them later.

There's a real-time performance monitor with per-core CPU, memory, disk, network, and S.M.A.R.T. drive health. A one-click restore point before every clean, so you can roll back. Scheduled scans. A CLI mode for people who don't want a GUI. Support for 30 languages.

Native app for Windows, macOS, and Linux. Intel and Apple Silicon builds. No ads, no upsells, no telemetry, no account.

The cleaning rules are plain JSON files, so if your favorite app isn't covered yet, you can add support for it without writing a line of code.

MIT license. 100% Open Source.

Repo: https://t.co/ctmxLjkgII

[Phoronix @phoronix]

Arch Linux's Archinstall 4.4 Adds Dank Material Shell + Niri Desktop Option

https://t.co/a0JDH5SCfT

[Tom Dörr @tom_doerr]

Manage Wi-Fi connections from the Windows terminal

https://t.co/ns94O3weqz

[Ivan Velichko @iximiuz]

https://t.co/62EVb4GTLy

[A DevOps Girl @adevopsgirl_]

Ready to build your own #Kubernetes cluster from scratch? In this step-by-step guide, go through the process of installing a production-grade Kubernetes cluster using #kubeadm.

https://t.co/8I8IEFoLwx #DevOps #Containers #CKA

[Brandon Lee @vspinmaster]

Proxmox Datacenter Manager 1.1 Quietly Added Its Best Feature Yet #proxmoxdatacentermanager #pdm #homelab #proxmox https://t.co/VDnd2tIuIO

[Linux Inside: The Ideal Blog for Sysadmins & Geeks @tecmint]

Ubuntu 26.04 LTS “Resolute Raccoon” shipped on April 23, 2026, and if you’re still on 24.04, this article walks you through the in-place upgrade using do-release-upgrade, the same tool Canonical recommends for every LTS-to-LTS jump.

👉 https://t.co/bOVh6cDHNw

Follow @tecmint for more #Ubuntu tips!

[Brandon Lee @vspinmaster]

Docker on Windows Server Without the Usual Frustration #docker #windows #visualdockserver https://t.co/liVgDNHVM8

[Jeff Steinbok @jeffsteinbok]

I've kept most of my brain in OneNote and Loop — both unfriendly to our new robot overlords 🤖

On a rec from @omarshahine I'm trying Obsidian, but needed x-platform sync. Found a thing on GitHub — not updated in years...so I wrote one:

https://t.co/vs93W1zNrx

[Linux Inside: The Ideal Blog for Sysadmins & Geeks @tecmint]

You’ve got a server refusing to start because something’s already sitting on port 8080, and you need to find what’s holding it and kill it without rebooting the whole machine.

https://t.co/iqfydzB0na

👉 Follow @tecmint for daily Linux tips & tricks!

[Ivan Velichko @iximiuz]

Docker 101: Volumes 🐳

Learn how to persist the application's on-disk state using a volume so you can replace a container with a newer version while keeping existing data intact.

Hands-on: https://t.co/wx6asjMAWQ

[Brandon Lee @vspinmaster]

Check out The Proxmox VM Disk Settings I Change on Every New VM #homelab #homeserver #proxmox #vmdisk https://t.co/JztrghOWGo