Tutorials

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grep tutorial
The grep command is a very powerful way to find documents on your computer. Learn how to use it in this tutorial.

Finding Interesting Documents with grep

The grep command is a very powerful way to find documents on your computer. You can use grep to see if a file contains a word or use one of many...
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zypper
The zypper tool for package and software repository management is fast and does the job. Learn more.

openSUSE Package Management Cheat Sheet

Debian/Ubuntu have long been my primary Linux distributions, although like all good Linux users I have used Fedora, CentOS, Gentoo, Red Hat,...
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Linux Foundation Certified System Administrator: Munzali Garba

The Linux Foundation offers many resources for developers, users, and administrators of Linux systems. One of the most important offerings is its...
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NTP
In this first of a three-part series, Chris Binnie looks at why NTP services are essential to a happy infrastructure.

Arrive On Time With NTP -- Part 1: Usage Overview

Few services on the Internet can claim to be so critical in nature as time. Subtle issues which affect the timekeeping of your systems can sometimes...
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OpenSSL
In this tutorial, Carla Schroder explains how to protect your Postfix/Dovecot mail server with OpenSSL.

OpenSSL For Apache and Dovecot: Part 2

Last week, as part of our meandering OpenSSL series, we learned how to configure Apache to use OpenSSL and to force all sessions to use HTTPS. Today...
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Python client for Kubernetes
Sebastien Goasguen takes the new Python client for Kubernetes for a spin.

Enjoy Kubernetes with Python

Over the past few years it seems that every cool and trending project is using Golang, but I am a Python guy and I feel a bit left out! Kubernetes is...
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OpenSSL
In this two-part series, Carla Schroder shows how to create your own OpenSSL certificates and how to configure Apache and Dovecot to use them.

OpenSSL For Apache and Dovecot

At long last, my wonderful readers, here is your promised OpenSSL how-to for Apache, and next week you get SSL for Dovecot. In this two-part series,...
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LXLE
Jack Wallen looks at LXLE, which stakes the claim that it can revive your old hardware without sacrificing productivity.

LXLE: A Linux Distribution Light on Resources But Heavy on Function

Most lightweight Linux distributions are fairly standard: They use a window manager with a small footprint and install a minimal amount of apps to...
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Linux holidays
Carla Schroder shares her list of fun Linux commands to create holiday delights.

5 Essential Linux Holiday Amusements

Yes, my fellow penguins, it is time for the annual ritual of having fun with silly Linux holiday commands! The fun of being a grownup is you get to...
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text editing
This tutorial shows how to use nano and vim to write, edit, and manage your Linux configuration files, scripts, and more.

An Introduction to Text Editors -- Get to Know nano and vim

At some point in your Linux administration career, you are going to edit a configuration file, write a Bash script, code, take a note, or any given...
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