Linux Pro Magazine #221 - Print Issue

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Issue #221: Monitoring Performance – Hunting for bottlenecks that slow down your system

As computers get more powerful and computer applications get bigger and more ungainly, users end up with the same question no matter how many times they upgrade: How do I make the most of my system resources by tuning up system performance? This month we explore some tools that offer a window into the performance and health of your Linux system: Netdata and perf.

Other highlights include:
* Steam Proton – this Wine fork running within the Steam Play gaming system provides a seamless way to run Windows games on Linux.
* Gnome Boxes – an easy interface for configuring and managing KVM virtualization.
* Linux Voice – Check out the latest installment in our series on Bash scripting – this time with the emphasis on flow control.

On the DVD: System Rescue CD and MX Linux 64 bit

Linux Pro Magazine #221 - Print Issue

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* Linux Kernel Continues to Offer Mitigation for Spectre Mitigation
* SpeakUp Trojan Targets Linux Servers
* KDE Plasma 5.15 Beta Arrives
* Canonical Announces Latest Ubuntu Core for IoT
* Vulnerabilities Found in Cisco Routers
* Two New Malware Campaigns
* US Government Shutdown Ties Up $139.2 Million in Grant Funding

Kernel News
* Considering Plan 9 Extensions for Type Conversion
* Supporting Heterogeneous Systems
* Optimizing CPU Idle States

VirtualBox Hacks
The VirtualBox virtual machine tool is a familiar sight on Linux systems, but many users don't access the full range of its powers.

Elementary OS
Elementary OS is an elegant Linux with a long-term vision and a focus on good design.

Open Source Tools for Writers
Using the right tools can free you up to focus on the content you're about to create.

Charly – DNSDiag
If some transactions take an inexplicably long time, you don't have to blame yourself for the delayed transmission of user data. Name resolution issues might be the culprit. Charly has three tools to study the DNS server.

Command Line – most
If you like to customize your command-line file pager, check out most.

Purifying Scanned PDFs
Having trouble reading that scanned PDF? You can add a little more contrast with some help from ImageMagick.

Packet Analysis with Scapy
The Scapy packet manipulation program lets you analyze and manipulate packets to create incident response reports or examine network security.

Programming Snapshot – Progress Bar
Progress bars keep impatient users patient during time-consuming actions. Mike Schilli shows how to create a homegrown progress bar.

ExaGear Desktop
Run your favorite x86 programs on the Raspberry Pi.

Open Hardware – Chrysalis
This graphical interface offers an easy way to customize open hardware keyboards.

Waveform 9
The Rasp Pi has enough performance to serve as a small digital audio workstation.

This month in Linux Voice.

Doghouse – Resolutions
FOSS goals for 2019.

Free Cartooning
The Elvie cartoon strip in this magazine is created entirely using open source software. We take you behind the scenes to show you how.

Go For It!
Is your to-do list taking all your time? Go For It! helps you work through your task list.

Graham explores the retro sci-fi eDEX-UI user interface.

Tutorials – Bash Arrays
Discover the data structures that make your shell scripts really powerful.

Tutorials – Natron
Natron allows you to create eye-catching effects and combine different video clips in surprising ways.

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