mysqldump - Create a Separate User to Back Up MariaDB Databases

As you may already know, mysqldump is one of the best utilities you can use to back up MariaDB databases. This tutorial shows how to back up MariaDB database in a secure manner with the help of a special backup user.
mysqldump
Most MariaDB/MySQL users are familiar with the following three backup...

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mysqldump - Create a Separate User to Back Up MariaDB Databases

Mail Server Login Error - Dovecot IMAP Authentication Failed

You have set up a Postfix and Dovecot mail server for your own domain name. It runs smoothly for a long time and you are happy with it. Then one day your email client can’t receive emails from your mail server.
Postfix is a SMTP server which is responsible for exchanging emails with other...

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Mail Server Login Error - Dovecot IMAP Authentication Failed

Install MKVToolNix 9.2.0 on Ubuntu 16.04/Debian 8/Linux Mint

MKVToolNix 9.2.0, codenamed photograph, was released on May 28, 2016. It’s a collection of tools to create, alter and inspect Matroska (MKV) files, available on Linux, BSD and Windows. This tutorial shows how to install MKVToolNix on Ubuntu 16.04, Debian 8, Linux Mint, Elementary OS via...

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Install MKVToolNix 9.2.0 on Ubuntu 16.04/Debian 8/Linux Mint

How to Install SuperTux Game on Debian 8/Ubuntu 16.04/Linux Mint

SuperTux is a 2D sidescroller game similar to the original Super Mario game. SuperTux 0.4 is released on December 2015. This tutorial shows how to install SuperTux 0.4 on Ubuntu 16.04/14.04, Linux Mint/Elementary OS and Debian 8.
Install SuperTux 0.4 on Ubuntu 16.04
SuperTux 0.4 is available on...

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How to Install SuperTux Game on Debian 8/Ubuntu 16.04/Linux Mint

How to Install Syncthing on Debian 8 Server to Back Up Website

This tutorial will teach you how to install Syncthing on Debian 8 server and use it to back up your Web site.
Syncthing is a free continuous file synchronization that lets you synchronize your files across multiple devices. It’s an open source alternative to the popular BitTorrent Sync...

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How to Install Syncthing on Debian 8 Server to Back Up Website

Install vnStat on Debian 8/Ubuntu 16.04 Server to Monitor Network Traffic

vnStat is an open source, GPL-licensed, console-based network traffic monitor. It’s lightweight and can be used without root privilege. Traffic statistics is stored in a database and presented per network interfaces. Each interface has its own database. The latest stable version is vnStat...

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Install vnStat on Debian 8/Ubuntu 16.04 Server to Monitor Network Traffic

Let's Encrypt TLS/SSL Certificate with Nginx on Arch Linux Server

In this tutorial, we’re going to look at how to obtain and install a free Let’s Encrypt TLS/SSL certificate with Nginx on Arch Linux server.
Obtain a Free Let’s Encrypt TLS/SSL Certificate
First we need to install the letsencrypt client which is available in Arch Linux...

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Let's Encrypt TLS/SSL Certificate with Nginx on Arch Linux Server

Let's Encrypt Free TLS/SSL Certificate Renewal Errors

When I launched this Web site in 2015, I was using a very cheap VPS which costs $10 per year. I obtained a free TLS/SSL certificate from Let’s Encrypt and configured Nginx to serve HTTPS traffic.
In March 2016, I migrated my Web site to a digital Ocean (without affiliate link) SSD cloud...

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Let's Encrypt Free TLS/SSL Certificate Renewal Errors

Use BitTorrent Sync (btsync) to Back Up Debian 8 Server

BitTorrent Sync, aka btsync, is a very convenient tool for file sharing and syncing. In this tutorial, I will show you how to use BitTorrent Sync to back up Debian 8 server.
Install BitTorrent Sync on Debian 8 Server via Official Deb Repository
Open sources.list file with nano text editor or vi...

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Use BitTorrent Sync (btsync) to Back Up Debian 8 Server

Install Let's Encrypt Free TLS/SSL Certificate with Nginx on Debian 8 Server

This guide explains how to obtain and install Let’s Encrypt free TLS/SSL certificate with Nginx server on Debian 8 server.
Install Let’s Encrypt Client on Debian 8 Server
Ubuntu 16.04 repository already have Let’s Encrypt client. The client is also available in Debian testing...

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Install Let's Encrypt Free TLS/SSL Certificate with Nginx on Debian 8 Server

How to Install Deepin Boot Maker on Ubuntu 16.04 LTS

Deepin boot maker is an open source, GPL3 licensed tool that can help you to create bootable USB sticks quickly and easily. You can use it to create Deepin Linux live USB and Ubuntu live USB.
It’s a unetbootin fork project. The latest stable version is Deepin boot maker V1.1.2 which is...

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How to Install Deepin Boot Maker on Ubuntu 16.04 LTS

Install BitTorrent Sync on Ubuntu 16.04 from Official Deb Repository

BitTorrent Sync, aka btsync, is a very convenient tool for file sharing and syncing, released by BitTorrent. Inc, the same company that invented the BitTorrent protocol. I like it because it helps me back up my Web site effortlessly.
It can run on Linux, Windows, Mac, Android, iOS, Windows ...

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Install BitTorrent Sync on Ubuntu 16.04 from Official Deb Repository

How to View Mobi File in Ubuntu 16.04

Have you downloaded a mobi file from the Internet and you don’t know how to open mobi files in Ubuntu? Well, this article is going to help you to view mobi files in Ubuntu 16.04.
The mobi e-book file format was created by a French company named Mobipocket SA. This file format is commonly...

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How to View Mobi File in Ubuntu 16.04

4 ePub Reader to View ePub Files on Ubuntu 16.04/14.04

ePub, aka electronic publication, is a free and open e-book file format. This post introduces you 4 different ePub reader you can use to view ePub files on Ubuntu 16.04/14.04.
FBReader – the Lightweight ePub Reader
FBReader, aka Free Book Reader, is small and fast. It supports most open...

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4 ePub Reader to View ePub Files on Ubuntu 16.04/14.04

Run Portable Linux Apps on Ubuntu 16.04 with Orbital Apps

You may have already know portableapps.com which provides us a host of portable apps that can run Windows. You may ask, what about Linux? Can I run portable apps on Linux? This tutorial explains how to run portable Linux apps on Ubuntu 16.04 with Orbital Apps.
Run Portable Linux Apps with...

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Run Portable Linux Apps on Ubuntu 16.04 with Orbital Apps

Install Tor Browser on Ubuntu 16.04 via PPA

Tor browser 5.5.5 was released on April 26th, 2016. This tutorial explains how to install Tor browser on Ubuntu 16.04 and how to use it.
Tor browser 5.5.5 Change log:

Updates Firefox to 38.8.0 ESR which features important security updates
Update Tor launcher to 0.2.7.9
NoScript was updated to...

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Install Tor Browser on Ubuntu 16.04 via PPA

How to Install Wine 1.8 on Ubuntu 16.04 via PPA

Wine is a recursive acronym for Wine is not an emulator. Wine is a compatibility layer that allows you to run Windows programs natively on Linux. It’s free open source and easy to use. In this tutorial, I will show you how to install Wine 1.8.2 (the latest stable version) on Ubuntu...

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How to Install Wine 1.8 on Ubuntu 16.04 via PPA

Geary Email Client 0.11 Released-How to install on Linux

Geary email is a free open source (licensed under LGPL v2.1) email client built for the GNOME 3 desktop environment. Geary is lightweight as it doesn’t have a RSS reader or calendar like Thunderbird have. It doesn’t support POP3 so you will be forced to use IMAP protocol to read your...

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Geary Email Client 0.11 Released-How to install on Linux

2 Ways to Install Telegram on Ubuntu 16.04: PPA & Snap Package

Telegram is a free and open source instant messaging client that values user’s privacy and data encryption. In this tutorial, I will show you 2 ways to install Telegram on Ubuntu 16.04.
Method 1: Install Telegram on Ubuntu 16.04 Via Snap
A Canonical employee has packaged a Telegram snap...

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2 Ways to Install Telegram on Ubuntu 16.04: PPA & Snap Package

How To Install NetSurf Browser on Linux

If you are getting frustrated with the increasingly bloated Firefox, you can try NetSurf browser, which is a fast, lightweight Web browser.
NetSurf is a free and open source Web browser licensed under GPL v2, available for Linux, Unix, RISC OS, Haiku, Amiga OS and Atari. It uses its own...

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How To Install NetSurf Browser on Linux

How To Test Snap Package Security on Ubuntu 16.04

Recently a Core OS security researcher and Linux kernel contributor named Matthew Garrett published a post pointing that Snap package on Ubuntu 16.04 with X11 display server is not secure. X11 is still the default display server on Ubuntu 16.04 desktop. He created a little Snap app on Github to...

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How To Test Snap Package Security on Ubuntu 16.04

How To Install Vivaldi on Ubuntu 16.04/14.04 and How To Use It

In this tutorial, I will show you how to install Vivaldi on Ubuntu 16.04/14.04 and how to use it. Vivaldi is a free ( as in free beer ) Web browser developed by Vivaldi Technologies which is founded by Opera software co-founder and former CEO Jon von Tetzchner and Tatsuki Tomita.
Vivaldi 1.0,...

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How To Install Vivaldi on Ubuntu 16.04/14.04 and How To Use It

How To Install Firefox on Tahrpup Puppy Linux

If you want to know how to install Firefox on Tahrpup Puppy Linux, then you’ve found the perfect tutorial. Tahrpup is an official distribution of Puppy Linux and in this tutorial, I will show you how to install latest Firefox browser on Tahrpup.
Install Firefox on Tahrpup
First go to...

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How To Install Firefox on Tahrpup Puppy Linux

How To install Shadowsocks on Puppy Linux Tahrpup

As you may know, Shadowsocks is a secure, very lightweight, super fast Socks5 proxy, originally designed for bypassing the great firewall of China. You can also view it as an alternative to VPN. In this tutorial, I will show you how to install Shadowsocks command line client on Tahrpup which is...

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How To install Shadowsocks on Puppy Linux Tahrpup

How To Install Skype on Elementary OS Freya

In this tutorial, I will show you how to install Skype on elementary OS 0.3.2 Freya.
If you’ve read my previous tutorial, then you know how easy it is to install Skype on Ubuntu. Elementary OS is based on the long-term support version of Ubuntu, in particular, Elementary OS 0.3.2 Freya is...

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How To Install Skype on Elementary OS Freya