Tags: Tutorial

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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, we'll protect our Postfix/Dovecot mail server with OpenSSL. The examples build on the previous tutorials; see the Resources section at the end for...
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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 continue with the small size metaphor. In the end, many of those distributions function well...at a cost of functionality. Typically, to get a...
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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 task associated with text editors. When you do, you will turn to one of the popular text editors available to the Linux platform. vim nano These...
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4 Ways to Send Email Attachment from Linux Command Line

Once you get familiar to using the Linux terminal, you wish to do everything on your system by simply typing commands including sending emails and one of the important aspects of sending emails is attachments. Especially for Sysadmins, can attach a backup file, log file/system operation report or...
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BlueStar Linux
Bluestar is an easy-to-use Arch Linux-powered distribution with a new take on the KDE desktop.

Bluestar Linux: A Beautiful Take on KDE and a User-Friendly Arch-Based Distribution

Have you ever wanted a combination of Arch Linux and KDE but always seemed to get stumped at the Arch Linux portion of the combination? If that’s you, your days of being left out in the Arch Linux/KDE cold are over. Why? Bluestar Linux. This new(ish) kid on the block allows you to enjoy Arch Linux...
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Mail server
In the final part of this tutorial series, we go into detail on how to set up virtual users and mailboxes in Dovecot and Postfix.

Building an Email Server on Ubuntu Linux, Part 3

Welcome back, me hearty Linux syadmins! In part 1 and part 2 of this series, we learned to how to put Postfix and Dovecot together to make a nice IMAP and POP3 mail server. Now we will learn to make virtual users so that we can manage all of our users in Dovecot. Sorry, No SSL. Yet. I know I...
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logfiles
In part three of this rsyslog series, Chris Binnie covers essential logfile rules and sample configurations.

Remote Logging With Syslog, Part 3: Logfile Rules

In the first article in this series, I introduced the rsyslog tool for logging, and in the second article I provided a detailed look at the main config file. Here, I’ll cover some logfile rules and sample configurations. I’m a Lumberjack Now for the juicy stuff as we get our hands a bit dirtier...
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Essentials of OpenStack
In part 2 of this tutorial series, we discuss some of the challenges that conventional data centers face. For more information, download the sample chapter now.

Essentials of OpenStack Administration Part 2: The Problem With Conventional Data Centers

Start exploring Essentials of OpenStack Administration by downloading the free sample chapter today. DOWNLOAD NOW In part 1 of this series, we defined cloud computing and discussed different cloud services models and the needs of users and platform providers. This time we’ll discuss some of the...
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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 reason...to help you troubleshoot an issue. In fact, every seasoned administrator will immediately tell you that the first thing to be done, when a...
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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 messages between SMTP servers. We need Dovecot to move messages off your Postfix server and into your users' email inboxes. Dovecot supports the two...
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