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VirtualBox Tutorial: Virtualization Essentials

Course Overview Oracle VM VirtualBox is a free and open-source hypervisor for x86 computers from Oracle Corporation. VirtualBox may be installed on a number of host operating systems, including: Linux, OS X, Windows, Solaris, and OpenSolaris. There are also ports to FreeBSD and Genode. It supports the creation and management of guest virtual machines running versions and derivations of Windows, ...

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Managing VirtualBox Virtual Machines through Command Line (with VBoxManage)

This article is part of our Academy Course titled VirtualBox Tutorial: Virtualization Essentials. In this course, we provide a compilation of VirtualBox tutorials that will help you get started with this virtualization platform. We cover a wide range of topics, from installing the software and performing a basic configuration, to cloning, exporting, importing, and removing virtual machines. With our straightforward ...

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Arduino as a wireless HTTP client

There are many aspects one must take into consideration when it comes to picking the right board for their project – from performance, memory, battery life, available slots for SD cards or bee modules all the way to the connectivity, namely network interface. Whether it is wired or wireless network interface, it plays crucial role in the way the board ...

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Systemd and Upstart Services

Most linux servers that I use are either Debian based or RedHat based. A common task is adding daemon services. Suppose that we want to start a tomcat application on startup First we shall install tomcat mkdir /opt/tomcat groupadd tomcat useradd -s /bin/false -g tomcat -d /opt/tomcat tomcat wget http://apache.cc.uoc.gr/tomcat/tomcat-8/v8.0.33/bin/apache-tomcat-8.0.33.tar.gz tar xvf apache-tomcat-8.0.33.tar.gz mv apache-tomcat-8.0.33/* /opt/tomcat rm -r apache-tomcat-8.0.33 apache-tomcat-8.0.33.tar.gz cd ...

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How to configure the settings of a Virtual Machine in VirtualBox

This article is part of our Academy Course titled VirtualBox Tutorial: Virtualization Essentials. In this course, we provide a compilation of VirtualBox tutorials that will help you get started with this virtualization platform. We cover a wide range of topics, from installing the software and performing a basic configuration, to cloning, exporting, importing, and removing virtual machines. With our straightforward ...

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AWS ZSH Helper

This morning I’m going to go with a new recurring weekly post: Friday Functions! While some of it will aim to share my large inventory of zsh functions I’ve acquired over the years I’ll also be finding new additions if I run out of material. So it also serves to help me learn more! This week’s function is probably only ...

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How to create, restore, and delete virtual machine snapshots in VirtualBox

This article is part of our Academy Course titled VirtualBox Tutorial: Virtualization Essentials. In this course, we provide a compilation of VirtualBox tutorials that will help you get started with this virtualization platform. We cover a wide range of topics, from installing the software and performing a basic configuration, to cloning, exporting, importing, and removing virtual machines. With our straightforward ...

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How to use the sudoers file to grant superuser privileges in Linux

In a Linux system there are tasks that need to be performed using administrative privileges (also known as superuser permissions) as they either impact the system as a whole (for example, managing packages or restarting services) or other users (adding or modifying user accounts, changing passwords or other users). Another example of a task requiring superuser privileges consists of changing ...

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Cloning, exporting, importing, and removing virtual machines in VirtualBox

This article is part of our Academy Course titled VirtualBox Tutorial: Virtualization Essentials. In this course, we provide a compilation of VirtualBox tutorials that will help you get started with this virtualization platform. We cover a wide range of topics, from installing the software and performing a basic configuration, to cloning, exporting, importing, and removing virtual machines. With our straightforward ...

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