WEBVTT 0:00:07.620000 --> 0:00:13.760000 Hello and welcome to this course from INE titled Jumping into Wi-Fi security. 0:00:13.760000 --> 0:00:17.280000 My name is Keith Bogart and I'll be your instructor for the duration of 0:00:17.280000 --> 0:00:20.800000 this course. If any time during this course you have any questions that 0:00:20.800000 --> 0:00:24.240000 are not answered by the content of the course itself, I have provided 0:00:24.240000 --> 0:00:26.240000 my contact information right here. 0:00:26.240000 --> 0:00:29.760000 So feel free to reach out to me with any questions you have and I'll do 0:00:29.760000 --> 0:00:32.260000 my best to answer those questions. 0:00:32.260000 --> 0:00:35.900000 So let's first of all talk real quickly about what the course prerequisites 0:00:35.900000 --> 0:00:39.820000 are. You do have to know a little bit to understand the concepts I'm going 0:00:39.820000 --> 0:00:41.380000 to talk about here. 0:00:41.380000 --> 0:00:43.540000 So really just two basic things. 0:00:43.540000 --> 0:00:46.980000 Number one, I want you to have a basic understanding of security principles 0:00:46.980000 --> 0:00:50.120000 such as encryption and authentication. 0:00:50.120000 --> 0:00:51.060000 What do I mean by that? 0:00:51.060000 --> 0:00:54.820000 Well, what I simply mean by that is those words themselves, encryption 0:00:54.820000 --> 0:00:58.420000 and authentication, should not be foreign to you. 0:00:58.420000 --> 0:01:02.000000 When I say the word encryption, you might not know all the encryption 0:01:02.000000 --> 0:01:04.860000 protocols out there and how they work, but you should have a high level 0:01:04.860000 --> 0:01:09.520000 understanding of what encryption does and why it's a good thing, why people 0:01:09.520000 --> 0:01:12.380000 use it. And similarly, you should have a similar level of understanding 0:01:12.380000 --> 0:01:14.000000 for the word authentication. 0:01:14.000000 --> 0:01:18.880000 You should also have a familiarity with wireless LAN basic concepts such 0:01:18.880000 --> 0:01:22.260000 as SSID, APs and controllers. 0:01:22.260000 --> 0:01:25.380000 Same type of thing, those words should not be foreign to you. 0:01:25.380000 --> 0:01:28.880000 You should know what an SSID is and where you would see it in a wireless 0:01:28.880000 --> 0:01:33.080000 LAN, why it's important that you know what the SSID is. 0:01:33.080000 --> 0:01:37.440000 You should know that an AP is an access point and what the job or role 0:01:37.440000 --> 0:01:39.900000 is of an access point in a wireless LAN. 0:01:39.900000 --> 0:01:44.040000 And similarly, you should know what a controller is and why you might 0:01:44.040000 --> 0:01:47.060000 want to have a controller in a wireless LAN network and what some of the 0:01:47.060000 --> 0:01:50.220000 benefits are. Don't have to go any deeper than that. 0:01:50.220000 --> 0:01:53.240000 So let's talk a little bit about what the objectives are of this course. 0:01:53.240000 --> 0:01:57.040000 What am I going to cover and what am I trying to convey to you? 0:01:57.040000 --> 0:02:02.660000 So number one, I want to summarize why wireless LAN security is important. 0:02:02.660000 --> 0:02:07.480000 So I'm assuming that you as a learner coming into this course have very 0:02:07.480000 --> 0:02:11.360000 little Wi-Fi experience or knowledge. 0:02:11.360000 --> 0:02:15.040000 So you're coming into this wanting to learn more about Wi-Fi, either for 0:02:15.040000 --> 0:02:18.520000 your just own personal edification or maybe because you're studying for 0:02:18.520000 --> 0:02:22.780000 some sort of certification exam that requires a little bit of Wi-Fi knowledge. 0:02:22.780000 --> 0:02:27.180000 So part of that is understanding why wireless LAN security is important. 0:02:27.180000 --> 0:02:30.440000 Just like why would we need security in a wired network? 0:02:30.440000 --> 0:02:32.700000 A lot of those same reasons exist when we're talking about a wireless 0:02:32.700000 --> 0:02:33.800000 LAN network as well. 0:02:33.800000 --> 0:02:36.380000 So we're going to talk about that. 0:02:36.380000 --> 0:02:41.240000 I'm going to help you to identify secured and unsecured wireless LANs. 0:02:41.240000 --> 0:02:45.280000 So when you go into a coffee shop or your office or an airport and you 0:02:45.280000 --> 0:02:49.180000 see a listing of all the wireless LANs available on your MacBook or your 0:02:49.180000 --> 0:02:53.260000 laptop or your tablet, by the time this course is done, you'll be able 0:02:53.260000 --> 0:02:57.760000 to identify which of those wireless LANs are secured, safe for you to 0:02:57.760000 --> 0:03:01.760000 connect to and your data passing across that wireless LAN will be safe 0:03:01.760000 --> 0:03:06.580000 from eavesdropping of other people and which wireless LANs are unsecured, 0:03:06.580000 --> 0:03:09.800000 which sometimes that's your only option, but you should still be able 0:03:09.800000 --> 0:03:12.980000 to visually tell the difference between the two of those. 0:03:12.980000 --> 0:03:17.860000 I'm going to list the different methods available for wireless LAN authentication 0:03:17.860000 --> 0:03:21.000000 on unsecured network. 0:03:21.000000 --> 0:03:27.580000 So if you've done any studying on your own of wireless LAN security, then 0:03:27.580000 --> 0:03:32.120000 you're probably of the assumption that authentication and encryption go 0:03:32.120000 --> 0:03:35.480000 hand in hand. A lot of people think, oh, okay, well, when I connect to 0:03:35.480000 --> 0:03:38.680000 a wireless LAN, if there's authentication involved, if I have to type 0:03:38.680000 --> 0:03:42.420000 in a password or something, clearly my data is going to be encrypted as 0:03:42.420000 --> 0:03:45.040000 well. And that's not always the case. 0:03:45.040000 --> 0:03:48.400000 There are some wireless LANs out there, for example, at restaurants or 0:03:48.400000 --> 0:03:51.820000 coffee shops that, yes, you might have to provide some sort of username 0:03:51.820000 --> 0:03:56.020000 or password, but your data is still going to go in plain text across the 0:03:56.020000 --> 0:03:59.480000 radio frequency and anybody can sniff it if they have the appropriate 0:03:59.480000 --> 0:04:02.100000 software or hardware to do so. 0:04:02.100000 --> 0:04:05.280000 So we're going to talk about what are those authentication methods available 0:04:05.280000 --> 0:04:07.620000 in those types of situations. 0:04:07.620000 --> 0:04:10.720000 Once again, not from the standpoint of how do you configure those things, 0:04:10.720000 --> 0:04:14.820000 but just so you can walk away understanding what differences, what features 0:04:14.820000 --> 0:04:17.500000 are available to you in that situation. 0:04:17.500000 --> 0:04:24.340000 I'm also going to explain the differences between WEP, WPA, WPA2, and 0:04:24.340000 --> 0:04:29.320000 WPA3. So once again, the objectives of this course are not to go into 0:04:29.320000 --> 0:04:35.020000 the fine nitty gritty details of how WEP encryption was very different 0:04:35.020000 --> 0:04:41.540000 than WPA or WPA2, how the cipher algorithms worked, how DIFY-helman is 0:04:41.540000 --> 0:04:43.020000 involved in WPA3. 0:04:43.020000 --> 0:04:45.120000 We're not going to go into that level of detail. 0:04:45.120000 --> 0:04:49.020000 This is not a physics course, but this course is designed to have you 0:04:49.020000 --> 0:04:52.140000 walk away and understand what the differences are between these. 0:04:52.140000 --> 0:04:56.120000 So if you see a network that's offering WPA and another one that's offering 0:04:56.120000 --> 0:05:00.920000 WPA2, you should be able to conceptualize, oh, well, WPA2 is probably 0:05:00.920000 --> 0:05:05.560000 better for me to connect to for this, this, and this reason. 0:05:05.560000 --> 0:05:09.800000 Then finally, we're going to do a little bit of configuration at the end. 0:05:09.800000 --> 0:05:13.940000 I'm going to show you how to configure both autonomous access points as 0:05:13.940000 --> 0:05:19.100000 well as wireless LAN controllers to go into an existing wireless LAN that's 0:05:19.100000 --> 0:05:24.660000 already been created and add WPA2 security to that using a pre-shared 0:05:24.660000 --> 0:05:28.520000 key. So those are the objectives of this course. 0:05:28.520000 --> 0:05:31.260000 I'm glad you're with us and let's just dive right into it.