ADMIN Infrastructure & Operations

Featured posts

Photo by Paolo Chiabrando on Unsplash

Networking

Controlling Data Flows in Kubernetes with Software-Defined Networking

We take a close look at the specific up- and downsides of three Kubernetes plugins for software-defined networking: Flannel offers a simple architecture, Calico relies on the scalable Border Gateway Protocol, and Cilium makes use of the Linux kernel's eBPF support.

Martin Loschwitz

Nov 3, 2026 12 min read

Self-Hosting

Running Your Own Matrix Server with Synapse

Max Jonas Werner

Oct 29, 2026 18 min read

Compliance

Infrastructure-as-Code Security with Checkov

Guido Söldner

Oct 29, 2026 7 min read

Virtualization

Synology and QNAP Container Solutions on Network-Attached Storage

Thomas Joos

Oct 27, 2026 13 min read

Latest

News

Linux Bottlenecks Discovered by Meta Engineers Lead to Scalability Improvements

Jack Wallen

Nov 2, 2026 1 min read

Enterprise Linux

An Operating System for the Telecom Industry

Jack Wallen

Oct 30, 2026 8 min read

White padlock on field of red and blue lights

News

UEFI Firmware Vulnerability Threatens Servers Worldwide

Amber Ankerholz

Oct 30, 2026 1 min read

Image © annetdebar, 123RF.com (hanging storage containers)

HPC

Rootless Containers for HPC

Jeff Layton

Oct 27, 2026 7 min read

News

Linux Mint 27 Set for a Christmas Release

Jack Wallen

Oct 26, 2026 1 min read

Person's hand on touchscreen with blue and orange lighting

News

LPI Releases Version 2.0 of Linux Essentials Certification

Amber Ankerholz

Oct 23, 2026 1 min read

Self-Hosting

Running Your Own Matrix Server with Synapse

Max Jonas Werner

Oct 29, 2026 18 min read

Building Reliable Network Storage with TrueNAS Community Edition

Max Jonas Werner

Sep 24, 2026 16 min read

Self-Hosted File Syncing with Seafile

Max Jonas Werner

Aug 27, 2026 16 min read

Wiring the Modern Stack with Node-RED

Max Jonas Werner

Jul 30, 2026 15 min read

Enterprise Linux

Linux Bottlenecks Discovered by Meta Engineers Lead to Scalability Improvements

Jack Wallen

Nov 2, 2026 1 min read

An Operating System for the Telecom Industry

Jack Wallen

Oct 30, 2026 8 min read

Linux Mint 27 Set for a Christmas Release

Jack Wallen

Oct 26, 2026 1 min read

LPI Releases Version 2.0 of Linux Essentials Certification

Amber Ankerholz

Oct 23, 2026 1 min read

HPC

Rootless Containers for HPC

Jeff Layton

Oct 27, 2026 7 min read

Abstract mountain landscape with blue and red

OpenStack Hibiscus Now Available

Amber Ankerholz

Oct 9, 2026 1 min read

Pink stacked squares with highlighted clusters

NVIDIA Adds Orchestration Layer to Quantum Computing Platform

Amber Ankerholz

Sep 18, 2026 1 min read

When Batch HPC and AI Training Share a Cluster

Jeff Layton

Aug 18, 2026 11 min read

Security

UEFI Firmware Vulnerability Threatens Servers Worldwide

Amber Ankerholz

Oct 30, 2026 1 min read

OpenBao Secrets Management

Markus Feilner

Oct 20, 2026 10 min read

Let’s Encrypt Announces Switch to 64-Day TLS Certificates

Amber Ankerholz

Oct 16, 2026 1 min read

OpenStack Hibiscus Now Available

Amber Ankerholz

Oct 9, 2026 1 min read

Editors’ Pick

Photo by Jakob Boman on Unsplash

Security

Full-Spectrum Security Scanner with Trivy

We take a close look at the Trivy scanners for vulnerabilities, misconfigurations, and secrets with Ubuntu-centric guidance on performance tuning, security configurations, and scalability across Linux distributions.

Marcin Gastol

Oct 10, 2025 7 min read