WEBVTT 00:00.890 --> 00:01.490 Okay. 00:01.490 --> 00:04.190 Let's talk about what is virtualization. 00:04.610 --> 00:11.210 So virtualization is essentially when we take one host or computer we can run multiple or different 00:11.210 --> 00:12.830 operating systems on it. 00:14.270 --> 00:21.050 Essentially we can have say a windows host running in Linux, Chrome OS or Apple potentially. 00:21.050 --> 00:28.160 Or we could have an Apple run Windows and Chrome, Linux and so on and so forth. 00:29.150 --> 00:35.390 It allows us flexibility to run machines that are essentially a virtual machine. 00:35.390 --> 00:38.990 It's a virtual computer running off our host computer. 00:38.990 --> 00:45.350 So this comes in really handy because it allows us to have a self-contained computer outside of our 00:45.350 --> 00:46.580 main computer. 00:46.580 --> 00:55.520 So some um, programs out there that will run this is OS X, parallels, VirtualBox and VMware are some 00:55.520 --> 01:00.620 examples, and some of these are free and some of these are going to be paid VirtualBox for example, 01:00.620 --> 01:01.580 is free. 01:01.820 --> 01:07.550 And there's also the Mac uh, GitHub uh, which I'll explain in a minute. 01:09.470 --> 01:17.780 So by using our existing memory, CPU, and hard drive space on our host computer, we can run a again, 01:17.780 --> 01:18.740 a virtual computer. 01:18.740 --> 01:21.440 It's a it's its own system. 01:21.440 --> 01:25.100 It doesn't really see our host computer. 01:25.100 --> 01:26.600 It thinks this its own machine. 01:26.600 --> 01:31.070 It thinks it's actually thinks it's an actual physical hard work computer. 01:32.360 --> 01:40.220 So some reasons why we would do this is that running the virtual machine, if our computer gets blown 01:40.220 --> 01:44.480 up, our virtual machine gets blown up by virus, malware, things like that. 01:44.810 --> 01:49.760 Again, it should be self contained, meaning that it's not going to affect our host computer. 01:49.760 --> 01:56.780 There's not a lot of malware out there that will jump from a virtual machine to a host to the host computer. 01:58.100 --> 02:04.010 Uh, there are some examples of those out there, but for the most part, if you get a virus on your 02:04.010 --> 02:06.440 virtual machine, it's going to stand your virtual machine. 02:07.250 --> 02:10.910 Also, again, it allows us the flexibility to run multiple operating systems. 02:10.910 --> 02:16.460 I can be running a windows machine, or it could be running a Linux machine or OSX machine, and I could 02:16.460 --> 02:18.710 have that Linux distro. 02:18.710 --> 02:21.710 In this case it's going to be CSI Linux running on it. 02:21.860 --> 02:24.140 So that's going to be really useful. 02:25.450 --> 02:30.460 And also, if something happens to that virtual machine, we get a virus, it gets corrupted. 02:30.640 --> 02:35.020 Um, I want to have a clean machine when I start my investigation. 02:35.050 --> 02:36.400 It's really easy. 02:36.400 --> 02:41.920 I get I can revert back to a snapshot, which will take a look at when we set up a virtual machine and 02:41.920 --> 02:43.210 it's going to be a clean computer. 02:43.210 --> 02:46.120 I can have a clean computer every time I run it. 02:46.660 --> 02:51.400 Unlike if I am running an investigation, my host computer, something goes wrong. 02:51.400 --> 02:53.110 I got to wipe out my machine. 02:53.110 --> 02:57.550 I have to reload windows or reload the Mac or Linux on there. 02:57.550 --> 02:59.200 Load up all my programs again. 02:59.200 --> 02:59.620 It's going to. 02:59.620 --> 03:00.970 It's a big hassle. 03:00.970 --> 03:03.760 Whereas a virtual machine, something happens. 03:03.760 --> 03:10.270 I just revert my snapshot if I need to turn over that that computer for evidence. 03:10.270 --> 03:16.270 For example, if it's going to a court case or a police or something like that, instead of handing 03:16.270 --> 03:23.110 over my host computer, I could potentially take that virtual machine, throw it on a on a external 03:23.110 --> 03:26.890 drive and hand it over to law enforcement, hand it over to the lawyers and whatnot. 03:26.890 --> 03:28.630 And they have that machine. 03:28.630 --> 03:32.950 They can actually run it on their own host machine and take a look at everything that I've been working 03:32.950 --> 03:33.490 on. 03:33.670 --> 03:37.060 So that's another advantage of virtual machines. 03:37.060 --> 03:40.450 So in the next video we're going to actually set up VirtualBox. 03:40.450 --> 03:42.610 Thanks for watching I'll see you next video.