WEBVTT 00:00.600 --> 00:04.680 It's really easy for us to think that there's only three operating systems out there. 00:04.860 --> 00:11.430 There's Microsoft Windows there's the Mac OS and then there's Linux but in reality there's a lot more 00:11.430 --> 00:12.090 than that. 00:12.150 --> 00:19.000 And in this episode what I want to concentrate on is the concept of what I'm calling secure OS types. 00:19.000 --> 00:23.790 Now before we dive into this too much what I want to make sure you understand is that these different 00:23.790 --> 00:28.620 types I'm about to tell you this isn't some official law or list. 00:28.620 --> 00:34.260 This is just compt his opinion in fact what they're doing is they're giving you examples of different 00:34.260 --> 00:38.790 situations with operating systems that they're probably going to be asking questions on. 00:38.790 --> 00:44.160 So while I'll say that there is server OS and workstation OS a kiosk so as we'll talk about Isle's at 00:44.170 --> 00:50.020 the moment the reality is that these are not laws of physics either simply cop to his opinions on things. 00:50.040 --> 00:57.750 So let's go through these different types of secure OS is now first of all to me all o s's are for the 00:57.750 --> 00:59.500 most part secure. 00:59.850 --> 01:05.850 What we're talking about here is what type of operating system do I use in a particular situation. 01:05.850 --> 01:11.760 Now the other thing I want to mention real quick is that in this list come to mention something very 01:11.760 --> 01:12.640 strange. 01:12.750 --> 01:17.440 They say a network secure operating system. 01:17.430 --> 01:18.390 There's no such thing. 01:18.400 --> 01:24.240 The last time we had something like that was in the early 90s when we had stuff with names like Netware 01:24.240 --> 01:25.740 and Banyan Vines. 01:25.740 --> 01:29.850 So I'm going to skip that particular one hope that I'm right. 01:29.850 --> 01:30.960 Let me know on the test. 01:30.960 --> 01:31.580 OK. 01:31.830 --> 01:33.060 So let's go and get started. 01:33.060 --> 01:39.000 The first one I want to talk about is a server operating system a server operating system is going to 01:39.000 --> 01:42.940 be an operating system version that's designed to support servers. 01:42.960 --> 01:47.070 Now you can take pretty much any operating system and put a web server on it. 01:47.190 --> 01:52.500 But what we're talking about custom designed server operating systems we're talking about for example 01:52.680 --> 01:59.250 the famous Windows server which has extra functionality built in built in DNS built in DHC the much 01:59.310 --> 02:05.460 stronger hardware support it can support more C-p use it has built in raid support for lots and lots 02:05.460 --> 02:07.490 of hard drives. 02:07.550 --> 02:14.790 Windows Server can support lots more instantaneous connections so you can have more than 20 which is 02:14.880 --> 02:16.280 a big deal for servers. 02:16.320 --> 02:19.190 So there's a lot of features like that that come into play. 02:19.200 --> 02:21.300 Certainly Windows doesn't have a lock on this. 02:21.300 --> 02:25.380 Even Linux pretty much every distribution has Serba versions. 02:25.380 --> 02:29.890 And again there are customized to work with stronger more robust hardware. 02:29.970 --> 02:37.080 They're designed to be able to support lots of lots of different server applications and they often 02:37.080 --> 02:42.630 skip a lot of things that you would see in other ones you're not going to see very many games in a Redhat 02:42.630 --> 02:47.910 Linux Enterprise Edition server because servers don't play games. 02:48.150 --> 02:53.620 After that is workstations now Conti's the workstation. 02:53.670 --> 02:57.780 But to me this is going to be the desktop version of things. 02:57.780 --> 03:06.810 So Windows 10 or Mac OS or Ubuntu Linux desktop these are designed to be the workhorse systems are going 03:06.810 --> 03:08.600 to have good network functionality. 03:08.760 --> 03:14.100 They're going to have reasonably good support for hardware but like for example Windows 10 out of the 03:14.100 --> 03:16.990 box does not support full blown raid. 03:17.010 --> 03:20.730 So little things like that that can make a difference. 03:21.710 --> 03:26.210 After that are going to be what I'm going to call embedded systems. 03:26.210 --> 03:32.130 I'm talking about everything from routers to refrigerators to cameras. 03:32.180 --> 03:36.440 These are individual devices that you don't really you can't add to it. 03:36.440 --> 03:37.880 Not really. 03:38.030 --> 03:43.820 You almost never have a dedicated screen a keyboard or a mouse or anything like that. 03:43.940 --> 03:49.880 But they are full blown computers and they are running operating systems these operating systems can 03:49.880 --> 03:54.500 vary dramatically for example on my little cameras that I use for security at the house. 03:54.500 --> 03:57.800 They're basically just running a very slim down version of Linux. 03:57.980 --> 04:04.580 If you're using a Cisco router then you'll be running the famous Cisco IOS and even things like embedded 04:04.580 --> 04:06.860 systems for plant processing. 04:06.860 --> 04:12.800 Use a very popular but not really well known operating system called VX works. 04:12.800 --> 04:17.680 So all of these different devices also come with their own operating systems. 04:17.810 --> 04:24.450 And for the test that the term appliance because that's what we see on the company objectives. 04:24.650 --> 04:31.910 Now after that is a kiosk and we've all been to a kiosk at a I was just at the Museum of Natural Science 04:31.910 --> 04:37.450 here in Houston in the big oil exhibit that they've opened up and it's got kiosks all over the place. 04:37.460 --> 04:44.780 A kiosk is going to manifest as little more than some big screen usually a touch screen with very customized 04:44.780 --> 04:48.950 interfaces to show people different things so I was able to move. 04:48.950 --> 04:55.010 Plate Tectonics just by pressing buttons at this kiosk kiosk operating systems for the most part are 04:55.040 --> 04:58.040 almost always going to be slimmed down versions of Linux. 04:58.040 --> 05:05.870 There are a few dedicated kiosk operating systems but to be honest the free price that Linux comes along 05:05.870 --> 05:10.060 with makes it very very attractive for people to use those types of things. 05:10.070 --> 05:14.420 He also sometimes will see things like the X works used within a kiosk. 05:14.420 --> 05:18.290 The most important thing is when you're at a kiosk you don't really know that you're at a computer it's 05:18.380 --> 05:22.500 just a big screen then you press buttons and you do fun stuff. 05:22.580 --> 05:27.730 Last are going to be the mobile operating systems and that really boils down to one of two camps. 05:27.860 --> 05:31.760 Either the Apple iOS or Google Android. 05:31.850 --> 05:38.300 I'm an android guy and don't try to change these types of mobile operating systems are custom designed 05:38.300 --> 05:41.750 for smart devices in particular phones and tablets. 05:41.960 --> 05:48.050 They provide very very robust experience they provide strong interfacing and a level of security that 05:48.050 --> 05:55.280 we never saw until Apple came out with iOS and then much not much later we came out with the Google 05:55.310 --> 05:56.340 Android. 05:56.360 --> 06:02.550 The level of security you have with those compared to say Windows 10 is absolutely dramatic. 06:02.550 --> 06:09.220 Now what you need to be thinking about at this point is when am I going to use these different operating 06:09.220 --> 06:09.580 systems. 06:09.580 --> 06:14.710 Well it's easy to go well I've had a kiosk so I'm going to use slimmed down version of Linux but what's 06:14.710 --> 06:17.890 more important is you think in terms of two big things. 06:17.890 --> 06:22.870 Number one least functionality whatever scenario they throw at you in the exam. 06:22.900 --> 06:28.030 Think about which one of these operating systems has the least amount of functionality but enough to 06:28.030 --> 06:30.450 do the job that it needs to do. 06:30.460 --> 06:36.810 Second are secure configurations any operating system by default has a high degree of security in it. 06:36.820 --> 06:42.340 In today's society you don't have a choice but you can actually have operating systems that are set 06:42.340 --> 06:44.390 up to be a lot more secure. 06:44.410 --> 06:48.160 For example Windows 10 is famous for its phone home telemetry. 06:48.160 --> 06:53.220 Anytime you type net stat you see all these little calls that Windows 10 is making back to Microsoft. 06:53.380 --> 06:57.080 But you can get operating systems that are much more locked down. 06:57.160 --> 06:59.050 There's a secure version of Windows. 06:59.140 --> 07:03.020 There's a secure many secure versions of Linux and even a Mac. 07:03.100 --> 07:08.980 Those are listed as a group known as trusted operating systems trusted operating system is from the 07:08.980 --> 07:10.380 secure computing group. 07:10.390 --> 07:16.330 They're the same people who work with things like TPM technology for securing hard drives and such and 07:16.330 --> 07:21.940 they certify usually for large governments trusted operating systems that are locked down as much as 07:21.940 --> 07:31.010 we possibly can.