1 00:00:00,920 --> 00:00:06,470 If you are coming from we know some white woman, the way that Lennox represents the major storage devices 2 00:00:06,480 --> 00:00:07,730 will look rather different to you. 3 00:00:08,210 --> 00:00:13,490 So you won't know the scene that defines them has no physical representation of the drive. 4 00:00:13,970 --> 00:00:24,230 Like C, D or E system in windows, but rather has a file with structure starts with sludge at the top 5 00:00:24,800 --> 00:00:28,220 here, uh, or the root here of it. 6 00:00:29,150 --> 00:00:35,120 So this chapter takes a look at how Linux represents two rookie devices, such as hard drives, flash 7 00:00:35,120 --> 00:00:36,890 drives and other storage devices. 8 00:00:38,350 --> 00:00:45,130 But first, look how far additional drivers, drought and other storage devices are mounted upon the 9 00:00:45,250 --> 00:00:54,310 fire system leading up to the root here and root directory monitoring in its context, simply meaning 10 00:00:54,310 --> 00:00:57,610 attaching drives or disk to the fire system. 11 00:00:58,550 --> 00:01:04,090 You know, to make them accessible to the operating system, so for you as a hacker, it's necessary 12 00:01:04,090 --> 00:01:10,500 to understand the finance through the waste management system, but you own your own system and often 13 00:01:10,510 --> 00:01:12,100 the system of your target. 14 00:01:13,270 --> 00:01:19,750 So hackers commonly used external media to load data, hacking tools or even their operating system. 15 00:01:20,140 --> 00:01:24,220 Once you are on your target system, you need to understand what you are working with. 16 00:01:24,730 --> 00:01:31,480 Where to find confidential or other critical files after Mount to drive to the target, and whether 17 00:01:31,480 --> 00:01:34,300 and where you can put those files on your system. 18 00:01:35,330 --> 00:01:43,300 So we will cover all of these topics, so players have to manage and monitor three devices in this lecture. 19 00:01:43,310 --> 00:01:50,180 So actually, I think this lecture will be one or two lectures or no more than two lecture series and 20 00:01:50,690 --> 00:01:52,070 in five system about Linux. 21 00:01:52,640 --> 00:01:59,030 So, yeah, actually, I want to show you an image from internet here. 22 00:01:59,510 --> 00:02:06,740 So we begin with directory known as Dave here DuckDuckGo. 23 00:02:10,970 --> 00:02:11,360 Here. 24 00:02:13,250 --> 00:02:20,600 So we begin with the director known as Dave, which you probably already noticed in the directory structure. 25 00:02:20,840 --> 00:02:28,460 So there is short for device and every device in Linux is represented by its own file within the directory. 26 00:02:28,790 --> 00:02:30,500 So let's start by working with them. 27 00:02:30,500 --> 00:02:33,680 But I firstly, I want to show you the Linux file structure. 28 00:02:34,040 --> 00:02:37,160 Linux fast true here. 29 00:02:40,450 --> 00:02:42,340 Can you see my screen, actually? 30 00:02:42,490 --> 00:02:42,940 Yes, right? 31 00:02:43,030 --> 00:02:43,300 Yes. 32 00:02:44,230 --> 00:02:52,030 So here I want to show you a little representation for presentation for better understanding here. 33 00:02:55,480 --> 00:02:55,810 It. 34 00:03:02,580 --> 00:03:04,200 Actually, it's good to hear. 35 00:03:04,500 --> 00:03:08,310 So I choose two pictures for you here. 36 00:03:09,260 --> 00:03:11,330 So it's opening this film here. 37 00:03:14,600 --> 00:03:23,870 So here, as you can see here, we have the root directory, all of this and all of these folders here. 38 00:03:24,230 --> 00:03:25,310 And we have both. 39 00:03:25,810 --> 00:03:31,110 So as I said to you earlier, all things your Linux is fire. 40 00:03:31,220 --> 00:03:34,770 So we have food directory being there. 41 00:03:34,910 --> 00:03:45,920 It see home leap lost fund media Mont OpEd Spin Serve TNP, we have user, which is the usernames of 42 00:03:45,920 --> 00:03:52,340 our users and we have another local here as well, and we have one here. 43 00:03:53,060 --> 00:04:00,740 So but as written here, what is a system files including kernel being, is binary for Gouzer. 44 00:04:01,220 --> 00:04:01,880 There is. 45 00:04:02,450 --> 00:04:04,400 There is device files and drivers. 46 00:04:04,790 --> 00:04:08,630 Etsy here is host specific configuration. 47 00:04:08,630 --> 00:04:11,680 File Home is user home directories. 48 00:04:12,050 --> 00:04:14,900 Lib is shared libraries kernel modules here. 49 00:04:16,240 --> 00:04:19,870 Our lowest fund is unknown files, so media is here. 50 00:04:20,140 --> 00:04:25,630 Man points for removable media, Monte Mount point for temporary file systems. 51 00:04:25,840 --> 00:04:26,650 We have helped. 52 00:04:26,740 --> 00:04:28,840 Here is optional software packages. 53 00:04:29,670 --> 00:04:36,910 Espin here, name system binaries, etc. We hear data for services provided by the system here. 54 00:04:36,940 --> 00:04:40,480 A temp temporary storage space. 55 00:04:40,810 --> 00:04:46,030 User user applications like source code, images and etc. We have in user. 56 00:04:46,030 --> 00:04:50,050 We have local respin bin and live folders inside. 57 00:04:50,240 --> 00:04:51,340 It did so. 58 00:04:51,340 --> 00:04:53,710 Local is the installer for local users. 59 00:04:53,710 --> 00:04:57,490 Share is config files graphics for user applications. 60 00:04:57,820 --> 00:05:07,480 It's been essential system applications that for user, uh, here and we have been user commands and 61 00:05:07,480 --> 00:05:09,490 lib is shared libraries by user. 62 00:05:10,150 --> 00:05:10,720 So we have. 63 00:05:10,780 --> 00:05:13,690 Lastly, I one title that you is what here. 64 00:05:13,750 --> 00:05:16,780 What we have are run local log tap here. 65 00:05:17,320 --> 00:05:18,760 So we are here. 66 00:05:18,760 --> 00:05:23,130 Valuable data used by the system run is info about current position. 67 00:05:23,620 --> 00:05:25,870 Lock his log files log. 68 00:05:25,960 --> 00:05:30,970 He's log fires and temp long term or large temporary files here. 69 00:05:31,390 --> 00:05:36,710 So we have another representation here as well that I want to show you is a boot. 70 00:05:37,510 --> 00:05:43,810 Here we talk about them and as you can see, we have these shaheem here. 71 00:05:43,810 --> 00:05:44,140 So. 72 00:05:45,230 --> 00:05:48,920 First, I want to talk about this Active Directory here. 73 00:05:49,220 --> 00:05:56,540 So Linux has a special directory that contains file files actually representing each attached to each 74 00:05:56,540 --> 00:06:01,460 attached device, so the appropriate name is the directory here. 75 00:06:01,880 --> 00:06:03,340 So actually lists it. 76 00:06:03,350 --> 00:06:08,920 So we are the top of all file system here, as as we discussed earlier, been built there. 77 00:06:08,930 --> 00:06:13,400 ATC Home Leap like media M.A. Root Run. 78 00:06:13,400 --> 00:06:19,010 If you are using not using Kali or Ubuntu or another system, you yeah, these folders might different 79 00:06:19,010 --> 00:06:20,000 on your system here. 80 00:06:20,390 --> 00:06:28,040 So as as your first introduction navigated the directory, see the view here and elsewhere. 81 00:06:28,250 --> 00:06:33,190 So as you can see here, we have so many folders in it, so I will explain all of this here. 82 00:06:33,710 --> 00:06:37,400 So, um yeah, you should see something like that. 83 00:06:37,640 --> 00:06:41,090 Or let's else L.A. here as we can all in this. 84 00:06:41,510 --> 00:06:43,610 Uh, actually, this is OK. 85 00:06:44,270 --> 00:06:52,190 So as you can see here, we have so many folders in it, Ti here we have um port here and all part port, 86 00:06:52,190 --> 00:06:53,990 uh, PC Alex here. 87 00:06:54,290 --> 00:06:56,330 So I will talk about all of them. 88 00:06:56,600 --> 00:07:01,460 So the devices are displayed in alphabetical order by default. 89 00:07:02,120 --> 00:07:06,440 So you may recognize some of the devices such as c d rom here. 90 00:07:06,440 --> 00:07:08,630 Uh, see the ROM here. 91 00:07:12,580 --> 00:07:17,080 See the room here and we have keep you here as well. 92 00:07:18,460 --> 00:07:25,760 Uh, cause, uh, here, see, Putin may let in Latin see here, so. 93 00:07:27,110 --> 00:07:32,660 Mothers have read in cryptic names here, so each device on your system is represented by a file in 94 00:07:32,790 --> 00:07:34,250 the directory here. 95 00:07:34,520 --> 00:07:40,680 We have brokenhearted, so including devices you have probably never used or even realized and not realized 96 00:07:40,680 --> 00:07:41,540 they exist up to you. 97 00:07:41,930 --> 00:07:44,000 So now they're offering you too. 98 00:07:44,510 --> 00:07:48,650 So there is a device file waiting to be used for it. 99 00:07:48,860 --> 00:07:55,610 So if you scroll down the screen image, you should see more listings of the words of particular interest. 100 00:07:56,060 --> 00:07:59,720 Are the devices starters, SD or SD? 101 00:07:59,720 --> 00:08:00,230 Be here? 102 00:08:00,560 --> 00:08:05,720 Is it like SD, a SDB and other here? 103 00:08:06,200 --> 00:08:12,590 As you consider SD one is to SD 162 SD A1 five actually. 104 00:08:12,860 --> 00:08:17,510 So SD, a SD, A1, SD, A2 and a five. 105 00:08:17,930 --> 00:08:22,760 So which are the hard drive and protections used and used? 106 00:08:22,760 --> 00:08:25,630 B flash drive and special partitions here. 107 00:08:27,320 --> 00:08:32,270 So I am I have not attached was b drive to the system. 108 00:08:32,270 --> 00:08:40,160 So if you attached and use B system, um, I think it will show you SD b here. 109 00:08:40,190 --> 00:08:41,960 So is TB one or two c v two? 110 00:08:43,350 --> 00:08:43,680 So. 111 00:08:46,380 --> 00:08:53,100 How learning sort of since storage devices, so Linux user theological labels for drives that are then 112 00:08:53,100 --> 00:08:54,600 mounted on the file system. 113 00:08:55,140 --> 00:09:03,290 So these logical labels will vary depending on where the drives are monitored, meaning the same hard 114 00:09:03,300 --> 00:09:10,070 drive might have different labels at different times, depending on where and when it's mounted or generally 115 00:09:10,080 --> 00:09:13,140 in Linux represents on a floppy drives. 116 00:09:13,290 --> 00:09:22,590 Remember, there's like it's as if the zero and hard drives as hush the A, so you will still occasionally 117 00:09:22,590 --> 00:09:23,850 see these drives. 118 00:09:24,690 --> 00:09:31,050 Representational legacy a Linux system But today, most prolific drives are gone, and thank goodness. 119 00:09:31,740 --> 00:09:32,900 And even so on. 120 00:09:32,910 --> 00:09:41,040 The legacy that hard drives that use the idea or idea is interface are still represented in the form 121 00:09:41,040 --> 00:09:42,210 of the A. 122 00:09:42,540 --> 00:09:51,750 So a new serial ATA or SATA interface drives and small computer system interface is CSI. 123 00:09:52,500 --> 00:09:55,860 Hard drives are represented, as is the AAA here. 124 00:09:56,490 --> 00:10:02,820 So drivers are sometimes split up into section known as partitions, which are represented in the labeling 125 00:10:02,820 --> 00:10:05,910 system with numbers, as you will see here. 126 00:10:06,600 --> 00:10:13,320 So when systems are more than one hard drive, Linux simply names them cellular by incrementing the 127 00:10:13,320 --> 00:10:15,840 last letter in alphabetical order. 128 00:10:16,080 --> 00:10:21,360 So the first drive is a star, so this means I have one drive because I had I don't have SDB here. 129 00:10:21,750 --> 00:10:29,340 So and the second driver's SDB, if you have, um, UCB and or drivers, STC and so on. 130 00:10:29,920 --> 00:10:35,000 So the serial letter after SD is often referred to as the merger. 131 00:10:35,010 --> 00:10:35,580 No. 132 00:10:36,980 --> 00:10:40,190 So we have the right politicians here as well. 133 00:10:40,460 --> 00:10:42,190 Now let's look at actually. 134 00:10:42,500 --> 00:10:44,360 So I will stop with you here. 135 00:10:44,830 --> 00:10:47,510 Uh, so I'm rating you in this lecture.