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Linux, Open Source and Cyber Security Tutorials

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JavaScript Web Development 

How to create a countdown timer in Javascript

September 9, 2019February 22, 2021 Stefan 0 Comments countdown, javascript, timer, tutorial 2 min read

When learning how to use Javascript, not everything will feel very easy at first. Especially true that is, when it

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pfSense 

pfSense email notifications with pfSense 2.4.4

June 27, 2019June 27, 2019 Stefan 6 Comments email notifications, pfsense, smtp, tutorial 2 min read

Today I want to give you a short tutorial on how to set up SMTP for sending E-Mail notifications from your pfSense firewall.

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Open Source Sysadmin 

Install FOG Server on Ubuntu Server 16.04 LTS

January 15, 2019May 8, 2019 Stefan 3 Comments FOG Server, tutorial, Ubuntu Server 10 min read

You want to up your image management game? Then, this tutorial is made for you. I will show you how to install FOG Server on Ubuntu Server 16.04 LTS step by step. Read on!

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Cyber Security 

Wireshark Tutorial Series 1 – Introduction, lab setup and GUI overview

December 15, 2017July 9, 2018 Stefan 0 Comments guide, tutorial, wireshark 4 min read

Wireshark is one of the most powerful tools when it comes to network traffic analysis. This is the introduction article to the new Wireshark Tutorial Series – Starting from scratch and finishing off with you being able to pro-efficiently analyse and understanding the traffic flowing through your network.

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Open Source 

How to install Certbot on Ubuntu 16.04 (Auto Cert Renew!)

November 30, 2017July 9, 2018 Stefan 3 Comments certbot, step-by-step, tutorial, Ubuntu 16.04 2 min read

Today I show you how to install Certbot on Ubuntu 16.04 and configure auto certificate

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Cloud Open Source Sysadmin 

How to install Snipe-IT on Ubuntu 16.04 on AWS Free Tier

November 30, 2017July 9, 2018 Stefan 7 Comments aws, snipe-it, snipeit, step-by-step, tutorial 4 min read

Today I show you how to install Snipe-IT on Ubuntu 16.04 using Amazon Web Services Free Tier EC2 instance.

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Cloud Sysadmin 

Synology NAS to Glacier Backup – The Ultimate Guide

July 28, 2017February 9, 2018 Stefan 23 Comments Amazon Glacier, Backup, Synology Glacier Backup, Synology NAS, tutorial 4 min read

I am excited to give you this new tutorial on Synology NAS to Glacier Backup – The Ultimate Guide. Read on!

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Cloud 

How to Upload Files to Amazon S3

July 19, 2017February 8, 2018 Stefan 0 Comments Amazon S3, tutorial, Upload 1 min read

Today I will quickly show you how to upload files to Amazon S3 in a few easy steps.

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Sysadmin 

Synology DS 716+ II Basic Installation

July 7, 2017July 9, 2018 Stefan 1 Comment NAS, Synology DS716 +II, tutorial 3 min read

This is the start of a mini-series geared towards the Synology DS 716+ II NAS System. I will guide you through a Synology DS 716+ II Basic Installation in this first part.

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pfSense 

Using a DrayTek Vigor 130 as a Modem for pfSense

June 16, 2017March 20, 2019 Stefan 5 Comments DrayTek Vigor 130, pfsense, tutorial 3 min read

Today a very quick guide on using a DrayTek Vigor 130 as a Modem for pfSense!

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