Posts by Xiao Guoan (Admin)

dynamic port forwarding

Use SSH Dynamic Port Forwarding to Bypass Great Firewall Of China

Dynamic port forwarding can be used to bypass the great firewall of China or any other firewall or Internet Filtering…

harden openssh server ubuntu

5 Effective Tips to Harden SSH Server on Ubuntu

In this post I’m going to share 5 tips you can use to secure SSH on a public-facing Ubuntu server.…

Create a Swap File on Cloud Linux Server to Prevent Out of Memory

When a Linux server is out of memory, some programs such as MariaDB/MySQL will shutdown automatically. To prevent out of…

mysqldump

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.…

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…

MKVToolnix

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…

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.…

vnstat network traffic monitor

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…

Let's Encrypt

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…

Let's Encrypt renew certificate

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.…

btsync

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…

SSL Certificate

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.…

deepin boot maker

How to Install Deepin Boot Maker on Ubuntu 16.04, Ubuntu 18.04, 19.04

Deepin boot maker is an open source, GPL3 licensed tool that can help you to create bootable USB sticks quickly…

BitTorrent Sync

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…

install steam on ubuntu 16.04

Install Steam on Ubuntu 16.04 LTS Xenial Xerus

This tutorial shows 2 ways to install Steam on Ubuntu 16.04 LTS. Method 1: Install Steam from Ubuntu Multiverse Repository…

mobi file

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?…

4 ePub Readers to View ePub Files on Ubuntu

ePub, aka electronic publication, is a free and open e-book file format. This post introduces you 4 different ePub readers…

Deepin boot maker

Run Portable Linux Apps on Ubuntu 16.04 with Orbital Apps

You may have already known portableapps.com which provides us a host of portable apps that can run on Windows. You…

install Tor browser on Ubuntu

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…

install wine

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…