WEBVTT 00:00.920 --> 00:06.470 If you are coming from we know some white woman, the way that Lennox represents the major storage devices 00:06.480 --> 00:07.730 will look rather different to you. 00:08.210 --> 00:13.490 So you won't know the scene that defines them has no physical representation of the drive. 00:13.970 --> 00:24.230 Like C, D or E system in windows, but rather has a file with structure starts with sludge at the top 00:24.800 --> 00:28.220 here, uh, or the root here of it. 00:29.150 --> 00:35.120 So this chapter takes a look at how Linux represents two rookie devices, such as hard drives, flash 00:35.120 --> 00:36.890 drives and other storage devices. 00:38.350 --> 00:45.130 But first, look how far additional drivers, drought and other storage devices are mounted upon the 00:45.250 --> 00:54.310 fire system leading up to the root here and root directory monitoring in its context, simply meaning 00:54.310 --> 00:57.610 attaching drives or disk to the fire system. 00:58.550 --> 01:04.090 You know, to make them accessible to the operating system, so for you as a hacker, it's necessary 01:04.090 --> 01:10.500 to understand the finance through the waste management system, but you own your own system and often 01:10.510 --> 01:12.100 the system of your target. 01:13.270 --> 01:19.750 So hackers commonly used external media to load data, hacking tools or even their operating system. 01:20.140 --> 01:24.220 Once you are on your target system, you need to understand what you are working with. 01:24.730 --> 01:31.480 Where to find confidential or other critical files after Mount to drive to the target, and whether 01:31.480 --> 01:34.300 and where you can put those files on your system. 01:35.330 --> 01:43.300 So we will cover all of these topics, so players have to manage and monitor three devices in this lecture. 01:43.310 --> 01:50.180 So actually, I think this lecture will be one or two lectures or no more than two lecture series and 01:50.690 --> 01:52.070 in five system about Linux. 01:52.640 --> 01:59.030 So, yeah, actually, I want to show you an image from internet here. 01:59.510 --> 02:06.740 So we begin with directory known as Dave here DuckDuckGo. 02:10.970 --> 02:11.360 Here. 02:13.250 --> 02:20.600 So we begin with the director known as Dave, which you probably already noticed in the directory structure. 02:20.840 --> 02:28.460 So there is short for device and every device in Linux is represented by its own file within the directory. 02:28.790 --> 02:30.500 So let's start by working with them. 02:30.500 --> 02:33.680 But I firstly, I want to show you the Linux file structure. 02:34.040 --> 02:37.160 Linux fast true here. 02:40.450 --> 02:42.340 Can you see my screen, actually? 02:42.490 --> 02:42.940 Yes, right? 02:43.030 --> 02:43.300 Yes. 02:44.230 --> 02:52.030 So here I want to show you a little representation for presentation for better understanding here. 02:55.480 --> 02:55.810 It. 03:02.580 --> 03:04.200 Actually, it's good to hear. 03:04.500 --> 03:08.310 So I choose two pictures for you here. 03:09.260 --> 03:11.330 So it's opening this film here. 03:14.600 --> 03:23.870 So here, as you can see here, we have the root directory, all of this and all of these folders here. 03:24.230 --> 03:25.310 And we have both. 03:25.810 --> 03:31.110 So as I said to you earlier, all things your Linux is fire. 03:31.220 --> 03:34.770 So we have food directory being there. 03:34.910 --> 03:45.920 It see home leap lost fund media Mont OpEd Spin Serve TNP, we have user, which is the usernames of 03:45.920 --> 03:52.340 our users and we have another local here as well, and we have one here. 03:53.060 --> 04:00.740 So but as written here, what is a system files including kernel being, is binary for Gouzer. 04:01.220 --> 04:01.880 There is. 04:02.450 --> 04:04.400 There is device files and drivers. 04:04.790 --> 04:08.630 Etsy here is host specific configuration. 04:08.630 --> 04:11.680 File Home is user home directories. 04:12.050 --> 04:14.900 Lib is shared libraries kernel modules here. 04:16.240 --> 04:19.870 Our lowest fund is unknown files, so media is here. 04:20.140 --> 04:25.630 Man points for removable media, Monte Mount point for temporary file systems. 04:25.840 --> 04:26.650 We have helped. 04:26.740 --> 04:28.840 Here is optional software packages. 04:29.670 --> 04:36.910 Espin here, name system binaries, etc. We hear data for services provided by the system here. 04:36.940 --> 04:40.480 A temp temporary storage space. 04:40.810 --> 04:46.030 User user applications like source code, images and etc. We have in user. 04:46.030 --> 04:50.050 We have local respin bin and live folders inside. 04:50.240 --> 04:51.340 It did so. 04:51.340 --> 04:53.710 Local is the installer for local users. 04:53.710 --> 04:57.490 Share is config files graphics for user applications. 04:57.820 --> 05:07.480 It's been essential system applications that for user, uh, here and we have been user commands and 05:07.480 --> 05:09.490 lib is shared libraries by user. 05:10.150 --> 05:10.720 So we have. 05:10.780 --> 05:13.690 Lastly, I one title that you is what here. 05:13.750 --> 05:16.780 What we have are run local log tap here. 05:17.320 --> 05:18.760 So we are here. 05:18.760 --> 05:23.130 Valuable data used by the system run is info about current position. 05:23.620 --> 05:25.870 Lock his log files log. 05:25.960 --> 05:30.970 He's log fires and temp long term or large temporary files here. 05:31.390 --> 05:36.710 So we have another representation here as well that I want to show you is a boot. 05:37.510 --> 05:43.810 Here we talk about them and as you can see, we have these shaheem here. 05:43.810 --> 05:44.140 So. 05:45.230 --> 05:48.920 First, I want to talk about this Active Directory here. 05:49.220 --> 05:56.540 So Linux has a special directory that contains file files actually representing each attached to each 05:56.540 --> 06:01.460 attached device, so the appropriate name is the directory here. 06:01.880 --> 06:03.340 So actually lists it. 06:03.350 --> 06:08.920 So we are the top of all file system here, as as we discussed earlier, been built there. 06:08.930 --> 06:13.400 ATC Home Leap like media M.A. Root Run. 06:13.400 --> 06:19.010 If you are using not using Kali or Ubuntu or another system, you yeah, these folders might different 06:19.010 --> 06:20.000 on your system here. 06:20.390 --> 06:28.040 So as as your first introduction navigated the directory, see the view here and elsewhere. 06:28.250 --> 06:33.190 So as you can see here, we have so many folders in it, so I will explain all of this here. 06:33.710 --> 06:37.400 So, um yeah, you should see something like that. 06:37.640 --> 06:41.090 Or let's else L.A. here as we can all in this. 06:41.510 --> 06:43.610 Uh, actually, this is OK. 06:44.270 --> 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, 06:52.190 --> 06:53.990 uh, PC Alex here. 06:54.290 --> 06:56.330 So I will talk about all of them. 06:56.600 --> 07:01.460 So the devices are displayed in alphabetical order by default. 07:02.120 --> 07:06.440 So you may recognize some of the devices such as c d rom here. 07:06.440 --> 07:08.630 Uh, see the ROM here. 07:12.580 --> 07:17.080 See the room here and we have keep you here as well. 07:18.460 --> 07:25.760 Uh, cause, uh, here, see, Putin may let in Latin see here, so. 07:27.110 --> 07:32.660 Mothers have read in cryptic names here, so each device on your system is represented by a file in 07:32.790 --> 07:34.250 the directory here. 07:34.520 --> 07:40.680 We have brokenhearted, so including devices you have probably never used or even realized and not realized 07:40.680 --> 07:41.540 they exist up to you. 07:41.930 --> 07:44.000 So now they're offering you too. 07:44.510 --> 07:48.650 So there is a device file waiting to be used for it. 07:48.860 --> 07:55.610 So if you scroll down the screen image, you should see more listings of the words of particular interest. 07:56.060 --> 07:59.720 Are the devices starters, SD or SD? 07:59.720 --> 08:00.230 Be here? 08:00.560 --> 08:05.720 Is it like SD, a SDB and other here? 08:06.200 --> 08:12.590 As you consider SD one is to SD 162 SD A1 five actually. 08:12.860 --> 08:17.510 So SD, a SD, A1, SD, A2 and a five. 08:17.930 --> 08:22.760 So which are the hard drive and protections used and used? 08:22.760 --> 08:25.630 B flash drive and special partitions here. 08:27.320 --> 08:32.270 So I am I have not attached was b drive to the system. 08:32.270 --> 08:40.160 So if you attached and use B system, um, I think it will show you SD b here. 08:40.190 --> 08:41.960 So is TB one or two c v two? 08:43.350 --> 08:43.680 So. 08:46.380 --> 08:53.100 How learning sort of since storage devices, so Linux user theological labels for drives that are then 08:53.100 --> 08:54.600 mounted on the file system. 08:55.140 --> 09:03.290 So these logical labels will vary depending on where the drives are monitored, meaning the same hard 09:03.300 --> 09:10.070 drive might have different labels at different times, depending on where and when it's mounted or generally 09:10.080 --> 09:13.140 in Linux represents on a floppy drives. 09:13.290 --> 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 09:22.590 --> 09:23.850 see these drives. 09:24.690 --> 09:31.050 Representational legacy a Linux system But today, most prolific drives are gone, and thank goodness. 09:31.740 --> 09:32.900 And even so on. 09:32.910 --> 09:41.040 The legacy that hard drives that use the idea or idea is interface are still represented in the form 09:41.040 --> 09:42.210 of the A. 09:42.540 --> 09:51.750 So a new serial ATA or SATA interface drives and small computer system interface is CSI. 09:52.500 --> 09:55.860 Hard drives are represented, as is the AAA here. 09:56.490 --> 10:02.820 So drivers are sometimes split up into section known as partitions, which are represented in the labeling 10:02.820 --> 10:05.910 system with numbers, as you will see here. 10:06.600 --> 10:13.320 So when systems are more than one hard drive, Linux simply names them cellular by incrementing the 10:13.320 --> 10:15.840 last letter in alphabetical order. 10:16.080 --> 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. 10:21.750 --> 10:29.340 So and the second driver's SDB, if you have, um, UCB and or drivers, STC and so on. 10:29.920 --> 10:35.000 So the serial letter after SD is often referred to as the merger. 10:35.010 --> 10:35.580 No. 10:36.980 --> 10:40.190 So we have the right politicians here as well. 10:40.460 --> 10:42.190 Now let's look at actually. 10:42.500 --> 10:44.360 So I will stop with you here. 10:44.830 --> 10:47.510 Uh, so I'm rating you in this lecture.