• Jozef Jarosciak
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linux

Domain hosting on a dynamic IP address with naked root domain forwarding (Goddady/DuckDNS solution)

April 12, 2020 by joe0

If you want to host a domain on a server at home, using your ISP’s connection, you will realize that your DNS provider (in my case GoDaddy) will not be in sync with the dynamic IP address assigned to you by your Internet provider. Let me show you a free and easy way of addressing this common issue. [Read more…]

Posted in: Operating Systems Tagged: linux

Kali Linux (VirtualBox) instructions for testing any Wi-Fi device against WPA2 Key Reinstallation Attack (KRACK Attack)

November 11, 2017 by joe0

The following article demonstrates the process of testing any Wi-Fi capable device against a key reinstallation attack. I’ll demonstrate the processes of executing the test using Kali Linux installed in the VirtualBox on a Windows machine. Then I’ll illustrate the process of testing recently patched Windows 10 as well as testing unpatched Android 7.0 mobile phone against the key Reinstallation Attack. This article also explores a newly discovered vulnerability of WPA2 named KRACK Attack (key reinstallation attack) in little more detail, as it’s one of the biggest vulnerabilities found in WPA2 to this day (patched only by a handful operating systems and Wi-Fi product manufacturers). The main issue introduced by KRACK attack is that it allows attackers to intercept all wirelessly transferred information in an unencrypted format, and do so without the knowledge of the wireless WPA/WPA2 network password. Serious? You bet…
[Read more…]

Posted in: Operating Systems Tagged: linux

How to mount Amazon S3 storage to AWS Lightsail Instance

August 2, 2017 by joe0

Following are the instructions on how to mount Amazon S3 storage to an AWS Lightsail Instance using S3FS and Fuse.

[Read more…]

Posted in: Operating Systems Tagged: linux

How to schedule nightly backups of Amazon Lightsail Instance by leveraging AWS Command Line Interface (CLI)

July 29, 2017 by joe0

Following are simple instructions on how to programmatically create a snapshot of your Amazon Lightsail Instance using AWS CLI.  [Read more…]

Posted in: Operating Systems Tagged: linux

How to install Cloud 9 IDE on Centos, RHEL or Amazon Linux

July 14, 2017 by joe0

This post is for those who find it much easier to program in a cloud based IDE, straight from their browser. The following instructions are for Cloud 9 IDE installation on Centos, RHEL or Amazon Linux. [Read more…]

Posted in: Operating Systems Tagged: linux

Amazon LightSail Review (or how to create WordPress site on AWS cloud in under 5 minutes)

June 28, 2017 by joe0

The following article is a short review of newly launched Amazon Lightsail service.  [Read more…]

Posted in: Operating Systems Tagged: linux

How to install Tomcat v9.0.xx on CentOS Linux 7.x (instructions + video)

May 25, 2017 by joe0

The following article shows how to install Tomcat v9.0.xx on CentOS Linux 7.x.xxxx.

[Read more…]

Posted in: Operating Systems Tagged: linux

How to Convert a Remote Physical Linux Server to a Virtual Machine (VMware / VirtualBox Instructions)

January 12, 2017 by joe0

Recently I needed to convert my physical CentOS Linux 7.3 server to a virtual image that I can quickly run from either VMware Workstation Player or  VirtualBox (or keep as a backup that can be easily switched on as a copy of the physical server). I’ve kept searching the Internet, but only to find that the instructions were either too old or do not provide a proper step by step guide on how to go about this process. Thus the reason for this article, hopefully, it’ll help someone. [Read more…]

Posted in: Operating Systems Tagged: linux

What is the best OS for web hosting? (Linux / Windows Server Comparison)

August 28, 2016 by joe0 2 Comments

In this article, I’ll describe my personal selection of the top three most important criteria for selecting a server operating system. I’ll compare two competing operating systems, Microsoft Windows Server and Linux (Unix based). Both of these OS’s are capable of functioning as a network server, but for this article, I’ll be referring to a server, whose primary function is that of a web server (a system that is designed to host the websites). [Read more…]

Posted in: Operating Systems Tagged: linux

Introduction to Community Enterprise Operating System (CentOS)

August 27, 2016 by joe0 Leave a Comment

The operating system that I use most frequently is Microsoft Windows 7 at work, Microsoft Windows 10 on my desktop at home and Android 6.0 Marshmallow on the smartphone and tablet. However, there is another operating system that I’ve been using for many years and that I rarely get into discussions about, yet over time it’s the operating system that has earned most of my trust. So for this post, instead of concentrating on the well-known Windows operating system, I’ve decided to describe my working experience with the not so commonly recognized CentOS operating system. [Read more…]

Posted in: Operating Systems Tagged: linux

Centos 7 and MariaDB/MySQL symbolic links or how to set different locations for databases?

December 30, 2015 by joe0 Leave a Comment

This post outlines how to configure MariaDB or MySQL on Centos 7 in order to store a specific database outside of the typical /var/lib/mysql/DBNAME directory. Or in other words, how you can have each of your databases residing on a different drive (or a different folder on the same drive), while running only a single instance of MariaDB or MySQL. [Read more…]

Posted in: Databases Tagged: linux

How to Automatically start VirtualBox VMs running under Centos 7 ?

December 23, 2015 by joe0 Leave a Comment

The command that controls a lot of automation that comes with VirtualBox software is called: vboxmanage. This article show how to use it in Centos/RHEL to automatically start your VM on boot. [Read more…]

Posted in: Operating Systems Tagged: linux

How to mount Windows USB drive onto Centos/RHEL 7 + How to fix error mount: unknown filesystem type ‘exfat’

November 29, 2015 by joe0 Leave a Comment

Following are the simple instructions on how to mount Windows USB drive onto Centos/RHEL 7 and also resolve a very common mounting issue which presents itself with error: mount: unknown filesystem type ‘exfat’. 

[Read more…]

Posted in: Operating Systems Tagged: linux

CentOS 7 – How to copy files and display the progress and speed of the transfer?

November 28, 2015 by joe0 Leave a Comment

Following article described how to copy files and display the progress, speed of the transfer and also time remaining, while using CentOS Linux.  [Read more…]

Posted in: Operating Systems Tagged: linux

How to create a bare metal (.iso image) backup of a live/running Linux server (CentOS 7 instructions).

November 14, 2015 by joe0 1 Comment

Following instructions will demonstrate how to create a full .iso image backup of a live CentOS 7 linux server.

[Read more…]

Posted in: Operating Systems Tagged: linux
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