1 00:00:04,860 --> 00:00:06,090 One of them I got one. 2 00:00:06,090 --> 00:00:09,560 Now we're talking about the process and the application layer. 3 00:00:09,560 --> 00:00:11,710 Same thing goes elsewhere. 4 00:00:11,850 --> 00:00:14,190 Well the process has been within the application layer. 5 00:00:14,190 --> 00:00:21,520 The TZP IP model right now one of the things is we breaking down the protocols as we go. 6 00:00:21,630 --> 00:00:23,890 I like telnet. 7 00:00:23,970 --> 00:00:27,420 This is the first standard developing 1969. 8 00:00:27,990 --> 00:00:33,980 It's a chameleon because it's not only our you know it's a port 23 but it's a protocol because what 9 00:00:33,990 --> 00:00:39,290 it allows you to do is to create this terminal session to another computer nobody knows you're there. 10 00:00:39,360 --> 00:00:42,860 So you're chameleon easing there but you're able to do things. 11 00:00:42,870 --> 00:00:49,680 Ok you able to go inside somebody on a remote device your own computer your own router or somebody else's 12 00:00:49,680 --> 00:00:54,680 router and make configurations malicious configurations. 13 00:00:54,840 --> 00:01:00,390 But going in there and check things high they're going if you need to put something in or take something 14 00:01:00,390 --> 00:01:02,550 out or the case may be found. 15 00:01:02,560 --> 00:01:06,460 Well the first thing the bad thing about all that is it is not secure. 16 00:01:06,510 --> 00:01:07,980 It is plain text. 17 00:01:08,220 --> 00:01:16,170 This is where S-sh comes in and that's why now Cisco went in there and U.S. CNA there really. 18 00:01:16,210 --> 00:01:23,830 And even their He and other sort of occasions they look at S-sh everybody out there has as a say. 19 00:01:23,850 --> 00:01:24,720 Why. 20 00:01:24,720 --> 00:01:26,410 Because it's like Telma. 21 00:01:26,700 --> 00:01:35,910 But you now have the capability of the password username and password and you have encryption that's 22 00:01:35,910 --> 00:01:37,100 involved as well. 23 00:01:37,260 --> 00:01:41,100 So there's a lot more secure than telnet. 24 00:01:41,100 --> 00:01:46,920 So we prefer again when we talk about port no emergency this will be port number 22 and we use these 25 00:01:46,950 --> 00:01:53,580 but these are applications and they're like chameleon's because really nobody knows that you've gone 26 00:01:53,580 --> 00:01:57,750 in there unless they have some sort of software that they've installed that they shouldn't have because 27 00:01:57,750 --> 00:01:58,800 they shouldn't have that privilege. 28 00:01:58,800 --> 00:02:04,920 But what about now is the drudgery when they're logged into their domain right while you're line them 29 00:02:04,920 --> 00:02:11,670 to do on that computer that you should they should not be able to write software that will detect case 30 00:02:11,670 --> 00:02:15,640 somebody tell me into your device Hey somebody is one at this age session. 31 00:02:15,720 --> 00:02:17,540 It's your device so you shouldn't do that. 32 00:02:17,730 --> 00:02:22,750 But this protocol is part of the TZP IP. 33 00:02:22,770 --> 00:02:27,380 OK I totally 1969 was a long time ago. 34 00:02:27,530 --> 00:02:28,920 Now we also have STPI. 35 00:02:28,940 --> 00:02:32,530 Everybody has used STPI with FCP. 36 00:02:32,540 --> 00:02:34,020 You do have the capability. 37 00:02:34,200 --> 00:02:37,520 That's what the file transfer protocol you transfer files back and forth. 38 00:02:37,700 --> 00:02:40,400 Very quick very low overhead. 39 00:02:40,460 --> 00:02:47,570 You have security you can go through browsers hours at software upon software upon applications out 40 00:02:47,570 --> 00:02:48,110 there. 41 00:02:48,170 --> 00:02:54,880 They use S2P to transfer things back and forth which makes it a lot easier than doing it through H. 42 00:02:54,930 --> 00:02:55,820 TTP. 43 00:02:55,900 --> 00:02:56,110 Right. 44 00:02:56,170 --> 00:03:04,490 Because they TPD of the hypertext transfer protocol which allow which is for web pages actually. 45 00:03:04,490 --> 00:03:10,850 So there's more there's more programming it's a more coding behind that than there is with FCP. 46 00:03:14,000 --> 00:03:14,920 What a sore throat. 47 00:03:15,080 --> 00:03:19,640 Oh I have to be right thing to do both directories and files that are OK and it has nothing to gain. 48 00:03:19,640 --> 00:03:21,420 So I told you all this stuff. 49 00:03:21,470 --> 00:03:26,600 So this is what I have to be does and you know we do use this we do we really do I. 50 00:03:26,790 --> 00:03:31,050 If you want to have the security part of it if you want to be quick about it. 51 00:03:31,070 --> 00:03:35,380 TFT P will be a broken down version of that right. 52 00:03:35,390 --> 00:03:36,500 It has a lot of laughs. 53 00:03:36,500 --> 00:03:38,770 There's no security there is no browsing. 54 00:03:39,050 --> 00:03:45,020 Once you set up a TV server on particular in a folder or PC or whatever it is where are you going to 55 00:03:45,020 --> 00:03:45,660 plug it. 56 00:03:45,710 --> 00:03:48,470 That's where it's going period. 57 00:03:49,440 --> 00:03:55,470 Some of the servers actually nowadays depends who you are using by the viewers. 58 00:03:55,470 --> 00:04:03,360 So when you have the capability of having that person long in but other than that the fee is not like 59 00:04:03,360 --> 00:04:09,640 that because it is really the one we use when we're backing up our routers or switches and all that 60 00:04:09,650 --> 00:04:16,300 we use Kavi start to have to be wired because this quick has no overhead on here. 61 00:04:16,340 --> 00:04:21,070 But again no drudgery running abilities meaning that they can only send and receive files. 62 00:04:21,310 --> 00:04:26,010 You know you want a wall let you go from here to there and you see which folder I want to put it in. 63 00:04:26,060 --> 00:04:27,360 That doesn't happen. 64 00:04:27,410 --> 00:04:31,470 I asked an MP simple Magsman network protocol. 65 00:04:31,520 --> 00:04:32,260 OK. 66 00:04:32,510 --> 00:04:40,550 As it says right there it collects and manipulates valuable network information or by polling to a network 67 00:04:40,550 --> 00:04:41,940 management station. 68 00:04:42,020 --> 00:04:43,310 We use SMP. 69 00:04:43,410 --> 00:04:51,490 So we can create all these get acquire all of the information from the devices there on our network. 70 00:04:51,520 --> 00:04:54,150 This is what SMP does. 71 00:04:54,310 --> 00:05:01,620 And there are three versions of who you are or have taken the CCMA and CC MP. 72 00:05:01,690 --> 00:05:05,690 They talk about SMP because the system is empty. 73 00:05:05,710 --> 00:05:08,550 That is they talk about SMP. 74 00:05:08,590 --> 00:05:16,030 What is useful to create all these different to what Choire to acquire information by pulling are devices 75 00:05:16,030 --> 00:05:17,110 to see what's going on. 76 00:05:17,110 --> 00:05:20,530 And again you're going to really do it. 77 00:05:20,560 --> 00:05:23,870 I mean you could do your routers with switches. 78 00:05:23,940 --> 00:05:30,160 What have you your PCs and all that you're going to use third party saw which can be nice views and 79 00:05:30,160 --> 00:05:32,190 charts look at. 80 00:05:32,590 --> 00:05:39,070 Again I go back to sort of once was there one number one out there OK for you to acquire all the information. 81 00:05:39,100 --> 00:05:46,600 So but all these articles are on the TCAP IP model and the application there here we know what we know 82 00:05:46,600 --> 00:05:47,740 what a CD is. 83 00:05:47,780 --> 00:05:54,510 This is you know Web sites comprising I mean a lot of our goals were the launch of graphics type graphics 84 00:05:54,520 --> 00:05:56,910 text links and so on. 85 00:05:56,920 --> 00:06:02,710 So in order to for your website to come out it has to be age compatible. 86 00:06:02,790 --> 00:06:03,560 Right. 87 00:06:03,700 --> 00:06:07,380 All communication between web browsers and web servers opens the right source. 88 00:06:07,390 --> 00:06:12,660 When you click a link I was the way you create your hypertext. 89 00:06:12,960 --> 00:06:18,160 It was called hypertext reference sleekly a hyper reference. 90 00:06:18,160 --> 00:06:20,920 Later on I forgot one time and I said no. 91 00:06:21,340 --> 00:06:22,060 That's old 92 00:06:24,990 --> 00:06:26,640 when you put on those lanes. 93 00:06:26,650 --> 00:06:32,550 They're actually opening up on communication to get to another hypertext a TDP page. 94 00:06:32,620 --> 00:06:38,880 Ok this is what makes you able to see all the different web pages. 95 00:06:38,910 --> 00:06:46,620 Now you see HTP down here 80 to be not secure not secure whatsoever. 96 00:06:46,700 --> 00:06:50,100 It can say a million things on a web page that it's secure or whatever. 97 00:06:50,130 --> 00:06:51,240 No no no. 98 00:06:51,240 --> 00:06:57,300 If you don't see the ass behind the HTP it's not going to be secure. 99 00:06:57,300 --> 00:07:05,310 Also if you go to the extremes of going to an actual third party person say hey listen I a sign or something 100 00:07:05,310 --> 00:07:10,200 like that I say hey I need you to you know verify that my website is secure Please check for any security 101 00:07:10,200 --> 00:07:16,680 holes whatever that you can validate that my site is secure because if you are doing the say donations 102 00:07:17,040 --> 00:07:22,770 or you're doing all selling solve whatever the case may be they have to do some sort of transaction 103 00:07:23,010 --> 00:07:26,710 especially if you're a bank and we know banks get have anyway. 104 00:07:27,210 --> 00:07:31,160 You need to make sure that you have some measure of security. 105 00:07:31,290 --> 00:07:35,100 So definitely you do want to use h t t p s. 106 00:07:35,160 --> 00:07:37,210 OK. 107 00:07:37,620 --> 00:07:46,620 Now of course DNS Nacho resolves resolves or translates it made that. 108 00:07:46,770 --> 00:07:57,780 But when it resolves resolves host who resolves domain names I lose all domain names to IP addresses 109 00:07:58,260 --> 00:07:59,070 and vice versa. 110 00:07:59,250 --> 00:07:59,870 OK. 111 00:08:01,300 --> 00:08:04,240 Well story goes you get an answer. 112 00:08:04,250 --> 00:08:10,530 Now you really don't need to time domain or web site to get to or you could always the public IP. 113 00:08:10,610 --> 00:08:11,770 We are human beings. 114 00:08:11,880 --> 00:08:13,390 Some of us are OK. 115 00:08:14,500 --> 00:08:18,920 We're not going to remember every IP address other known to mankind. 116 00:08:18,920 --> 00:08:19,690 All right. 117 00:08:19,930 --> 00:08:25,790 So there's 4.2 something billion rounds off to 4.3 billion addresses. 118 00:08:25,870 --> 00:08:26,660 OK. 119 00:08:26,690 --> 00:08:27,700 You know I don't remember that. 120 00:08:27,820 --> 00:08:33,490 But you remember Microsoft that you remember Facebook dot com remember snatch back on and remember all 121 00:08:33,490 --> 00:08:34,200 these Web sites. 122 00:08:34,210 --> 00:08:35,560 Google.com. 123 00:08:35,560 --> 00:08:36,250 All right. 124 00:08:36,270 --> 00:08:41,880 Remember all these different Web sites and when you tell your buddies you know hey this is this website 125 00:08:41,930 --> 00:08:42,700 and to go to. 126 00:08:42,950 --> 00:08:45,350 I'll give you a little example. 127 00:08:45,460 --> 00:08:53,530 I used to work for a county I want to mention which one a county that when I went to work I like to 128 00:08:53,530 --> 00:08:55,210 listen to the radio. 129 00:08:55,210 --> 00:08:58,120 So there's a radio station there was really cool zones online. 130 00:08:58,120 --> 00:08:58,660 All right. 131 00:08:58,750 --> 00:09:01,070 So I knew that you are all right. 132 00:09:01,060 --> 00:09:02,470 So I typed in the URL. 133 00:09:02,500 --> 00:09:04,240 This is just the domain name of the euro. 134 00:09:04,240 --> 00:09:06,460 The euro will consist of the H. 135 00:09:06,460 --> 00:09:07,440 The protocol as well. 136 00:09:07,450 --> 00:09:08,540 A CVP. 137 00:09:08,760 --> 00:09:09,280 OK. 138 00:09:09,340 --> 00:09:10,470 So I will type it in. 139 00:09:10,510 --> 00:09:13,620 I just hadn't a domain name I remember what it was now. 140 00:09:13,960 --> 00:09:20,740 And I was into my writing but one day came in and I had this as cannot whatever some securities think 141 00:09:20,760 --> 00:09:23,140 so that I can do it I say really. 142 00:09:23,140 --> 00:09:28,680 So I went into the command prompt which I shouldn't have been able to administrators. 143 00:09:29,030 --> 00:09:29,480 OK. 144 00:09:29,500 --> 00:09:37,540 Because I was a user I painted the website I got the IP address. 145 00:09:37,810 --> 00:09:42,910 Then I put the IP address on the browser and I thought was able to listen to my radio. 146 00:09:43,180 --> 00:09:43,720 All right. 147 00:09:43,780 --> 00:09:51,520 That is what I'm telling you that if you don't do your due diligence you know that doesn't take a genius 148 00:09:51,520 --> 00:09:52,680 to do what I did. 149 00:09:52,960 --> 00:09:53,600 OK. 150 00:09:53,680 --> 00:09:59,560 And your faith and knowledge you know hey this is attached to an IP address. 151 00:09:59,560 --> 00:10:04,220 Finally a few address I can put it on their computers and on theaters that are no domain names. 152 00:10:04,240 --> 00:10:04,870 OK. 153 00:10:05,080 --> 00:10:10,660 That's why when you create this host record because a domain name is right here lies dot com. 154 00:10:10,750 --> 00:10:18,350 This is actually to hold a record that we attach the IP address to. 155 00:10:18,380 --> 00:10:24,700 So if I know the ACARS polling that it didn't get to it and I did or because they didn't block the IP 156 00:10:24,700 --> 00:10:29,040 address they did they just blocked the name the domain name. 157 00:10:29,120 --> 00:10:32,790 This very ominous blog this being this person that was in order. 158 00:10:32,860 --> 00:10:34,360 And they do their due diligence. 159 00:10:34,370 --> 00:10:36,520 OK either way. 160 00:10:36,650 --> 00:10:38,950 And like I said here it's not recommended. 161 00:10:39,010 --> 00:10:41,930 Me you know don't remember all these years is crazy. 162 00:10:42,010 --> 00:10:48,450 While the hardest ones to secure isn't what I was working at the college was mostly because my face 163 00:10:48,600 --> 00:10:59,720 bought different ranges of IP addresses within all three classes a b and c and to blunt them as proxies 164 00:10:59,720 --> 00:11:01,560 upon proxies upon proxies. 165 00:11:01,790 --> 00:11:06,610 It was hell on earth ok to block but that's why you have policies. 166 00:11:06,610 --> 00:11:09,060 Ladies and gentlemen and I'm getting off on a tangent. 167 00:11:09,310 --> 00:11:11,930 OK we are talking about the application layer. 168 00:11:12,140 --> 00:11:17,960 But again you know a little bit you know our security locations we are know about the Internet DNS name 169 00:11:17,960 --> 00:11:18,430 resolution. 170 00:11:18,440 --> 00:11:19,300 All that stuff. 171 00:11:20,620 --> 00:11:31,690 You need to create policy user policies that say you are not to use work computers for for your own 172 00:11:31,690 --> 00:11:33,080 pleasure. 173 00:11:33,080 --> 00:11:33,510 All right. 174 00:11:33,550 --> 00:11:35,260 It's not for Facebook. 175 00:11:35,410 --> 00:11:42,180 The email you're using Exchange server or whatever or just what mail you're not allowed to go into. 176 00:11:42,250 --> 00:11:43,580 Personal Web mail. 177 00:11:43,930 --> 00:11:52,800 A lot of my vacation pictures from Hawai or gay or anything else putting your personal banking information. 178 00:11:52,920 --> 00:11:54,230 Don't do it. 179 00:11:54,270 --> 00:12:03,380 The work computer is for work not to be listening to YouTube music or YouTube videos or what have you. 180 00:12:03,630 --> 00:12:04,430 OK. 181 00:12:04,440 --> 00:12:12,530 It is for work because what you're doing is opening up a hole to come into the company and get a virus. 182 00:12:12,540 --> 00:12:18,780 Keep that in mind no matter what we put in a stupid PSA members sign says we're there we're safe and 183 00:12:18,780 --> 00:12:21,700 all this stuff and we have firewalls. 184 00:12:22,380 --> 00:12:28,550 There's a matter of policies in place to let your users know. 185 00:12:28,790 --> 00:12:35,050 This is a work computer and you use it for war. 186 00:12:35,350 --> 00:12:38,820 Also that means I can read my own computer and I can do what I want I can on my myself. 187 00:12:38,840 --> 00:12:45,340 No it goes you're on my network OK. 188 00:12:45,390 --> 00:12:48,440 So whatever device that's connected to your network. 189 00:12:48,480 --> 00:12:49,060 Ms. 190 00:12:50,110 --> 00:12:53,890 Another computer a laptop cell phone. 191 00:12:54,280 --> 00:13:02,560 You're opening the door for the company to get a virus just because you want to put something on Facebook 192 00:13:02,930 --> 00:13:07,610 or you are possibly on snatcher or you want to put something on my face or whatever the case may be. 193 00:13:08,000 --> 00:13:09,260 OK. 194 00:13:09,260 --> 00:13:11,540 So policies need to be put in place. 195 00:13:11,570 --> 00:13:13,410 I'm very wonder about that. 196 00:13:13,610 --> 00:13:17,460 But these are protocols that work in his toes more. 197 00:13:17,480 --> 00:13:23,690 But again just to give you so you can understand more or less what's happening at the application where 198 00:13:24,220 --> 00:13:24,820 in the next.