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Game Plan

Ansible has earned an excellent reputation as a tool for configuration management. Thanks to playbooks, updates are more or less child's play.

First Aid Kit

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Rescue systems play a particularly important role for desktops because they cannot simply be reinstalled on the fly. We look at venerable but outdated Knoppix and three still in development: Grml, SystemRescue, and Finnix.

Fast and Lean

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File I/O is a limiting factor for many applications and can become a bottleneck for data-intensive computing. We analyze different file access functions and present a script that visualizes and optimizes inefficient file I/O.

Silent Observer

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In the deep waters of scalable environments, observability is more important than ever. Coroot enters the scene with eBPF to intercept traffic and collect data that is of interest for monitoring and attack detection.

Digital Docs

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A NAPS2 PDF scanner, the C# language, and the .NET Framework set the stage for a CLI app for scanning documents.

Self-Worth

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Exploring my worth as a system administrator.

It's a Snap

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Microsoft recommends the use of snapshots both locally and for Azure VMs. We describe how to create snapshots in the Azure GUI and with PowerShell and how to protect your snapshots against unauthorized access.

Weathering the Storm

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The Kopia open source system for automating the creation and transfer of backups supports a wide range of remote storage devices, making it particularly useful as a backup tool in cloud environments. The convenient GUI for Windows installations holds its own against commercial products, despite its short development history.

Inspector

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Learn how to develop a simple yet effective port scanner to analyze network security.

Phone Booth

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FreePBX is a first-class replacement for commercial phone systems, even in complex setups.

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