This post is an introduction to the general concept of virtualization. Virtualization is the overarching concept of creating virtual versions of computing resources, such as servers, storage devices, or networks. It abstracts physical hardware and allows multiple virtual instances to…
This post summarizes the most common Virtual Private Network (VPN) protocols. VPN Protocols VPN (Virtual Private Network) protocols: RADIUS AAA protocol can also establish a VPN. PPTP Deprecated Point to Point Tunneling Protocol (PPTP) is a legacy solution, and it…
This post explains some aspects of application virtualization. This is part of a series of article about virtualization. Application Virtualization Software Products Software Virtualization Software Products: Citrix Virtual Apps Citrix Virtual Apps, formerly known as Citrix XenApp, allows users to…
This post explains the most relevant concepts about the software needed to run and/or compile Java on a device. It also clarifies the differences between concepts like JVM, JRE, JDK, OpenJDK or Java SE. Java Platforms A Java platform is…
Types of network segments According to its privacy, there are different types of network segments: The internet is publicly available for any user. An intranet hosts information privately only for users within an organization. The services are placed on internal…
There are different virtual machines available for Linux/Ubuntu, but in this tutorial we are using Oracle VM VirtualBox. VirtualBox is a free and open source virtualization software from Oracle. This post was written on November 2018, so instructions may vary…
Before the current OS for Apple systems (MacOS X), there were earliest OS versions that were simply know as MacOS. MacOS and MacOS X are not that compatible, so if you need to run old MacOS programs or files then…