Linux Pro Magazine #224 - Print Issue

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Issue #224: Energy Consumption – Why are some applications more efficient?

Energy efficiency studies often focus on hardware, but what about the software? As it turns out, software tools created for similar tasks sometimes use energy very differently.

On the DVD: Ubuntu 19.04 and Fedora 30

Linux Pro Magazine #224 - Print Issue

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* Barrier – declutter your desk with a free tool that lets you operate multiple computers with one keyboard and one mouse.
* Network Analysis – Search for intruders with tcpdump, Wireshark, and NetFlow.
* MakerSpace – We look at malware analysis on the Raspberry Pi as well as a study of Amazon's Greengrass IoT services.
* Linux Voice – We highlight some unsung command-line tools and explore some useful LibreOffice extensions.

* Fedora Project Announces Fedora 30
* The Apache Software Foundation Completes Migration To GitHub
* Canonical Combines its Services in a Single Package
* Black Hole Image Has an Open Source Connection
* Ubuntu 19.04 Released
* Linux Mint Founder Calls for Better Developer Support
* VMware Patches Critical Vulnerabilities

Kernel News
* Improving the Android Low Memory Killer
* Randomizing the Kernel Stack
* Best Practices

Energy Study
It's getting easier to measure the environmental impact of software. A†recent study suggests criteria for determining how the choice of software affects resource use.

Image Viewers
For today's photographers, image viewer programs are an essential piece of equipment because they can help you quickly load and sort your photo and video files. We†compare some of the top image viewers.

Programming Snapshot – mitmproxy
Reading the data passing between the browser and server is interesting to debugging developers as well as snooping spies. Mike Schilli gets you started with the man-in-the-middle proxy tool mitmproxy and shows how to customize it using Python scripts.

Command Line – EncFS
EncFS is an easy and effective file encryption app with some useful customization features.

Charly's Column – Tiger VNC
Charly enumerates the computers in his†household and makes it clear that commuting between them would be an unreasonable burden on his personal energy balance. Instead he lets a tiger go the distance for him.

Barrier lets you work with one keyboard and mouse pair on multiple Linux, Mac OS, or Windows computers.

Network Analysis
The nightmare of any admin is a user who can't resisting clicking on an unknown attachment labeled Application.exe. This article shows how†to use Linux tools to detect unauthorized traffic that might have been invited in by a trigger-happy user.

Rasp Pi Security
Analyze malware on a hacked Raspberry Pi and create a signature to detect malware in log entries.

Amazon's Greengrass IoT Core services let you read and merge Raspberry Pi sensor data.

Open Hardware – /e/
GaÎl Duval's quest for a FOSS phone moves ahead.

This month in Linux Voice

Doghouse – Unix
Unix can come across as unfriendly to the uninitiated, but its complexity can often make things simpler in the long run.

Hidden CLI Tools
The command line has many smart tools that hardly anyone knows about. We introduce some of the most useful.

LibreOffice Extensions
LibreOffice has hundreds of options and features, but these handy extensions make it even more convenient.

This month Graham looks at Surge, fd, Kloak keystroke anonymizer, Symphytum, uMatrix,†and more!

Tutorials – Bash Functions
Learn how to make your Bash code more readable, robust, and reusable by managing the code within your Bash scripts.

Tutorials – FreeCAD
The FreeCAD drawing tool lets you design simple shapes and even multiple interlocking pieces.

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