Tutorials

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log files
When a problem arises on your system, the first thing to do is to view the logs. Jack Wallen shows how.

Viewing Linux Logs from the Command Line

At some point in your career as a Linux administrator, you are going to have to view log files. After all, they are there for one very important...
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holiday lights
This tutorial series shows how to create fully automated holiday music and light show. In this final part, we wrap up the project with a custom playlist and finish up the electrical connections.

Create a Fully Automated Light and Music Show for the Holidays: Part 3

This tutorial series shows how to build  a fully automated holiday music and light show using a Raspberry Pi, a Micro SD card, and a few other...
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holiday lights
This tutorial series provides comprehensive instructions for setting up holiday lights and music. In this part, we focus on the components and connections for the light show.

Create a Fully Automated Light and Music Show for the Holidays: Part 2

This tutorial shows how to build  a fully automated holiday music and light show using a Raspberry Pi, a Micro SD card, and a few other inexpensive...
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holiday lights
In this three-part tutorial, we show how to set up a fully automated holiday music and light show with a Raspberry Pi.

Create a Fully Automated Light and Music Show for the Holidays: Part 1

You better watch outYou better not cryBetter not poutI'm telling you whyChristmas lights are coming to town Christmas has been one of my favorite...
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Dovecot email
Part 2 in this tutorial shows how to use Dovecot to move messages off your Postfix server and into your users' email inboxes.

Building an Email Server on Ubuntu Linux, Part 2

In part 1, we installed and tested the Postfix SMTP server. Postfix, or any SMTP server, isn't a complete mail server because all it does is move...
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rsyslog
Part 2 of our rsyslog series takes a detailed look at the main config file.

Remote Logging With Syslog, Part 2: Main Config File

In the previous article, we looked at some of the basics of rsyslog -- a superfast Syslog tool with some powerful features for log processing. Here,...
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Raspberry Pi media
This tutorial shows how to build an inexpensive Plex Media Player using Raspberry Pi 3 and RasPlex.

Turn Raspberry Pi 3 Into a Powerful Media Player With RasPlex

I have hundreds of movies, TV shows and music that I have bought over the years. They all reside on my Plex Media Server. Just like books, I tend to...
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Parrot Security
Parrot Security is a complete distro, based on Debian Jessie core, which includes software for cryptography, cloud, anonymity, digital forensics, and programming.

Parrot Security Could Be Your Next Security Tool

Network and security administrators rely heavily on their tools. Without the right tools, that brilliant mind can only do so much. But what tools are...
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httpstat – A Curl Statistics Tool to Check Website Performance

httpstat is a Python script that reflects curl statistics in a fascinating and well-defined way, it is a single file which is compatible with Python...
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mail server
In this series, we will show how to build a reliable configurable mail server with Postfix, Dovecot, and OpenSSL on Ubuntu Linux.

How to Build an Email Server on Ubuntu Linux

In this fast-changing world of containers and microservices it's comforting that some things don't change, such as setting up a Linux email server....
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