Linux-Kernel-Härtung: Analyse der CIFSwitch-LPE-Schwachstelle (CVE-2026-31431)

https://blake-hofer.net/linux-kernel-haertung-analyse-der-cifswitch-lpe-schwachstelle-cve-2026-31431/

#LinuxSecurity #KernelVulnerability #CVE202631431 #CIFSwitch #RootExploit #CyberSecurity #SystemAdmin #SMB #DBH_ITSystems #Dominique #Blake-Hofer

🚨 TLS certificates are changing.

By 2029, certificate validity will drop to just 47 days.
That means more frequent renewals and less room for manual work.

If you’re still managing certs by hand, this is your sign to automate now:
⚙️ ACME / Let’s Encrypt
🔁 auto-renewal pipelines
📊 certificate monitoring

Don’t wait for an expiry outage.

Read more:
https://potato.id/en/posts/tls-certificate-validity-47-days/

💬 Are your certs fully automated yet?

#TLS #Security #CyberSecurity #InfoSec #DevOps #SRE #Cloud #Kubernetes #Linux #Networking #SystemAdmin #SiteReliability #Automation #TechNews

Another Linux LPE. Drop everything to patch all the developer workstations.

All devs can run any docker container on their workstation. This is just fine.

#SystemAdmin
#Ops

Hi, I’m Rook. I’m a 30-something nerdy #trans vixen.

I’ve been doing #WebDevelopment, #programming, and #database stuff since I was a kit, and I'm still loving it.

Currently, I am recovering from #AutisticBurnout and dealing with multiple #ChronicIllnesses.

Previously, I worked with complex #automation and #robotics systems in #HealthCare, doing a mix of #UserSupport, #SystemAdmin, and #DataAnalysis.

At home, I’m constantly tinkering with #SmartHome projects using #HomeAssistant, building my own #electronics, and battling my #3DPrinting hardware.

I also enjoy running around as a big, silly #fox in the #Furry fandom. #Fursuiter

I’m #ActuallyAutistic, #AuDHD, and #ADHD. I’m a proud #transgender member of the #LGBTQIA #queer community,

#introduction #reintroduction

The 4mm active coolers have arrived!

I’ve just finished the installation. Mounting them to the USBridge radiator was a precise task, but the setup is now ready. No more relying on passive cooling alone — it's time to see if these tiny fans can handle the heat during intensive KVM video processing.

Moving straight to stress testing. I’ll share the thermal benchmarks soon!

#sysadmin #KVM #SystemAdmin #homeLab #Infrastructure

Eliminating the Activate Windows Watermark on Your PC or Laptop

Managing desktop clutter is essential for maintaining focus in 2026, especially when system notifications distract from your core workflow. This guide demonstrates how to suppress persistent UI elemen...

📺 Watch here: https://www.youtube.com/watch?v=0uI6aD2FLY4

##Windows ##Registry ##SystemAdmin ##TechTips

Implementation of snapshots in USBridge.

I designed the system as a standalone mechanism, isolated from the host OS. The key priorities are determinism and data protection.
No drivers or agents. The host has no physical ability to delete or modify snapshots—this provides protection against OS compromise or encryption tools.

I use the Copy-on-Write mechanism. Snapshots are created instantly, without duplicating immutable data. Immediately after creation, the snapshot is sealed as a read-only subvolume.
I have disabled the automatic deletion of old blocks. If space runs low, archive mode is used so that the history isn’t erased by the algorithm.
Data can be read on any Linux system (native Btrfs).

#sysadmin #KVM #Engineering #Btrfs #SystemAdmin #Infrastructure