Virtual Machines

So what is a virtual machine?

A virtual machine is a computer file, typically called an image, that behaves like a real computer. What this means is that it will act and look like a real computer. You will be able to run applications on it as if it were your machine. However, it has a separate memory so what you do in your VM it is not saved in your computer's memory.

Are all virtual machines the same?

No. There are different types of virtual machines: a system virtual machine and a process virtual machine.

What is the difference between the two types?

System virtual machines which are like substitutes for an entire computer. You can execute entire operating systems on this type. While process virtual machines are designed to execute computer programs in an independent environment.

How does the VM's sepearate memory work?

In a particular VM, the guest OS is stored on a virtual hard drive—a big, multi-gigabyte file stored on your real hard drive.

VPN

What are VPNs?

VPN stands for virtual private network and It allows you to connect to a private network by extending it over a public network

What do VPNs do that a regular connection wouldnt?

When using a VPN your data gets encrypted and sent to the VPN server and then it gets forwarded to your online “destination”.

Why would I use one?

VPNs forward your network traffic to the network you would like to be connected to. This can allow you use certain benefits you might not have access to e.g. JMU Resources.