WEBVTT 00:00.990 --> 00:08.970 If you want, uh, to, uh, remove the configuration files at the same time as the package, you can 00:08.970 --> 00:11.670 use purge option here. 00:12.510 --> 00:19.320 So in previous lecture, we used to remove here, but remove is just remote application, but we will 00:19.320 --> 00:25.860 now, uh, remove the configuration, file a civil with powered, uh, command here. 00:26.340 --> 00:33.390 Sudo apt get purge here and our application names small. 00:35.350 --> 00:40.060 And type your password, color and operating system password here. 00:40.420 --> 00:42.250 And if if you want. 00:43.270 --> 00:48.820 You will see the task being in real time and you will be asked whether you want continue or not, so 00:48.820 --> 00:55.930 you can enter E to, uh, when you install per your application and then enter. 00:56.590 --> 01:03.040 Um, so as you can see here, there is, uh, our application is perched there. 01:03.040 --> 01:10.870 So you may have noticed along the line the following packages were automatically installed and are no 01:10.870 --> 01:12.050 longer required. 01:12.700 --> 01:13.570 Um. 01:14.540 --> 01:22.430 And no longer required in the article terminals or to keep things simple and modular, many Linux packages 01:22.430 --> 01:27.920 are broken into the software unit that many different programs might use. 01:28.460 --> 01:35.000 When you install snort, you install several dependencies or libraries with it that's not required in 01:35.000 --> 01:35.870 order to run. 01:36.500 --> 01:43.960 So now that you are removing snort with purge dos or the libraries or dependencies are no longer required. 01:44.000 --> 01:45.590 So they are removed, too. 01:46.730 --> 01:50.240 So now I want to show you these updating packages here. 01:52.220 --> 01:59.570 Software repositories here periodically updated with new software or versions of existing software. 02:00.520 --> 02:07.500 News updates don't reach you automatically, so you have to request them in order to apply these updates 02:07.510 --> 02:09.940 to your own system. 02:10.480 --> 02:17.260 Updating isn't the same as upgrading updating the simpler updates the list of packages available for 02:17.260 --> 02:25.120 download from the repository where upgrading will upgrade the package to the latest version in the repository. 02:25.600 --> 02:30.850 You can update your individual system by entering UM. 02:32.860 --> 02:34.120 APT, get. 02:34.630 --> 02:40.090 I will just sort of hear APT get common, followed by the keyword update. 02:41.660 --> 02:42.080 So. 02:45.510 --> 02:52.230 This whole search trod all the packages on your system and checked whether updates are available. 02:52.530 --> 02:56.280 So if so, the updates are downloaded here. 02:57.060 --> 03:02.700 Uh, so the soonest available in software requests are in your system will be updated here. 03:03.120 --> 03:06.150 So it might take, uh, nine. 03:06.220 --> 03:13.970 As you can see, there is a, uh, how many kilobytes per second is downloading and how many packages 03:14.010 --> 03:15.340 need to normalize here. 03:15.370 --> 03:15.850 And so. 03:17.840 --> 03:19.250 It's downloading now. 03:32.440 --> 03:41.800 It might take five seconds, so I want to show you what you will say after successful off the updating, 03:41.800 --> 03:48.250 so if the update is successful, your terminal will start reading package lists. 03:48.490 --> 03:50.740 Done, as you can see here. 03:50.950 --> 03:52.690 Not at the name of the repository. 03:52.690 --> 03:57.250 And the volume is time, size and so on might be different than your system here. 03:58.520 --> 04:06.350 Uh, so now I want to show you upgrading packages, so to upgrade the existing packages on your system, 04:06.350 --> 04:17.090 use a p t, uh, a P to get up grade because upgrading your packages may make changes to your software. 04:17.450 --> 04:26.780 You must logged in as root or used a pseudo here pseudo command before entering APT get upgrade. 04:27.170 --> 04:35.000 So this command will upgrade every package in your system that apt norms meaning only do stored in a 04:35.000 --> 04:36.510 repository here. 04:36.530 --> 04:42.200 Upgrading can be time consuming, so you might not be able to use your system for a while. 04:43.340 --> 04:45.410 As you can see, I just need. 04:46.720 --> 04:47.320 Uh. 04:49.670 --> 04:53.180 Ten megabyte of something downloading here. 04:53.660 --> 04:56.120 So let's continue here. 05:04.500 --> 05:14.580 So if your system is old, so I mean, uh, if you don't know that the um old version of Linux and uh, 05:14.580 --> 05:23.010 you might have uh and very good, uh, sort of ish applications to update here, but in my case, it's 05:23.340 --> 05:23.760 uh. 05:26.470 --> 05:36.220 Good do so for now, I will close here, so for closing, just press controlled plus the shortcuts or 05:36.220 --> 05:44.800 see sort of shortcuts in one time so we can add the repositories to source that list file. 05:45.970 --> 05:53.720 So the servers that hold the software for particular distribution of Linux are known as very poor seed 05:53.720 --> 05:56.190 Tor for use here. 05:56.860 --> 06:03.970 So nearly every distribution has its own repositories of software developed and configured for that 06:03.970 --> 06:04.930 distribution. 06:05.110 --> 06:11.590 So that might not work well or at all with other distributions altered, and these researchers often 06:11.590 --> 06:14.970 contain the same or similar software. 06:14.980 --> 06:20.890 They are identical, and they sometimes have different versions of the same software or entirely different 06:20.890 --> 06:21.430 software. 06:21.970 --> 06:26.980 You will, of course, be using the Colina repository, which has a large amount of security and hacking 06:26.980 --> 06:27.580 software. 06:27.910 --> 06:35.320 But because they specialize in schools and hacking, it doesn't include some special software and tools 06:35.320 --> 06:38.530 and even some run of the mill software. 06:38.890 --> 06:47.950 It's worth adding a backup ripper story or tool that your system can kind of research fraud in case 06:47.950 --> 06:52.330 it doesn't find its specific software in the repository. 06:53.230 --> 07:00.490 So the repositories your system will search for software are stored in the sources that list file, 07:01.300 --> 07:07.210 and you can alter this file to to define from whichever source you want to download software. 07:08.670 --> 07:16.830 Uh, so, yeah, I often want repositories after the Kali repositories in my sources that at least file 07:17.220 --> 07:21.120 that way, then I request to download the new software package. 07:21.480 --> 07:27.840 My system will first look in the color of history, and if the software package isn't there, it will 07:27.840 --> 07:30.210 look in the Ubuntu repository. 07:30.570 --> 07:40.860 You can find the sources that this file in, uh, eighty eighty eight sources. 07:40.870 --> 07:48.840 The list here, as you can see here, I have some additional software. 07:48.900 --> 07:49.350 See it. 07:53.580 --> 07:57.390 And let's open it up with Moshpit. 08:03.440 --> 08:08.090 So mouse pads, I'm sorry, uh, mouse pad. 08:08.470 --> 08:13.430 It is a police source that list. 08:14.910 --> 08:20.190 As you can see here, we have so text while here and then to. 08:22.410 --> 08:27.240 So after entering this command, you shall see in this window, um. 08:28.360 --> 08:32.950 Many Linux distributions divide repositories into separate categories. 08:33.370 --> 08:41.590 For instance, you want to break up breaks out, it's sort of categories like Main Universe, Multiverse, 08:41.590 --> 08:43.390 restricted break points, you. 08:44.810 --> 08:51.030 So I don't recommend using testing experimental or unstable repositories on your sources. 08:51.050 --> 08:52.040 Not this file. 08:52.610 --> 08:59.150 So because they can download problematic software to your system, the software that isn't fully tested 08:59.150 --> 09:01.010 might break your system as well. 09:01.460 --> 09:06.410 So I will open this file shouldn't because it's read only on this system file. 09:06.420 --> 09:11.060 So I supposed to open this file with sudo command here. 09:13.580 --> 09:13.970 So. 09:15.680 --> 09:25.220 When you ask the Donald and you sort of package the system logs sequential at, you're a store is listed 09:25.220 --> 09:29.870 in sauces that list and stops when it finds the desired package. 09:30.380 --> 09:34.190 Check first that the repository is compatible for your system. 09:34.550 --> 09:38.630 Uh, Colleen, like is Wilton, uh, Debian. 09:38.900 --> 09:45.350 So these repositories works pretty well with each of these systems to other repository. 09:45.350 --> 09:52.520 Just edit sources that at least file by adding the name of the repository or to the list and then save 09:52.520 --> 09:53.030 the file. 09:53.510 --> 09:58.040 So say, for example, you want to install Oracle Java eight on column. 09:58.070 --> 09:59.540 No effort to package for Oracle. 09:59.540 --> 10:05.930 Java eight is available as part of the default color sources, but the Quick Search online shows that 10:05.930 --> 10:10.610 the fine folks at Webb will p the aid have created one. 10:11.240 --> 10:17.270 If you are the repository to those sources, you can then install Oracle Java eight with the APT Get 10:17.630 --> 10:20.120 Install Oracle Java eight Installer Command. 10:20.510 --> 10:27.380 At the time of this course, you will need to add the following repositories here for example. 10:28.070 --> 10:28.670 Um? 10:31.090 --> 10:36.070 They're here, much of it here. 10:38.550 --> 10:39.830 How steep? 10:40.890 --> 10:41.760 EPA. 10:43.410 --> 10:51.540 Uh, PPA, EPA, dot, launch pad, launch pad. 10:52.170 --> 10:52.710 Net. 10:54.260 --> 11:05.990 And they were all paid the team Java and one tool for us to main. 11:06.410 --> 11:10.220 And the second request that we built is saucier. 11:10.760 --> 11:11.870 Let's see. 11:13.640 --> 11:14.640 Uh, excellent. 11:15.020 --> 11:17.180 Excellent teaching to appear. 11:18.090 --> 11:20.080 A launch pad. 11:22.190 --> 11:28.940 And that meant that, uh, we all paid the eighteen. 11:30.030 --> 11:30.600 Java. 11:32.860 --> 11:36.340 We're going to criticize. 11:38.340 --> 11:39.030 And me. 11:39.930 --> 11:44.850 But let's save this file here and then. 11:45.180 --> 11:48.990 So the AP team, get off date here. 11:50.760 --> 11:52.530 As you can see here, we're updating. 11:52.860 --> 11:55.470 And now we can you install this file here? 11:55.920 --> 12:00.360 So sudo apt get install Java. 12:01.750 --> 12:06.490 Here, as you can see here, we can install Java packages here. 12:08.410 --> 12:13.990 So we have a quick, graphical user interface based installer here as well. 12:14.380 --> 12:21.790 So new versions of it no longer include a graphical user interface based software installation tool, 12:21.790 --> 12:26.440 but you can always install of one of them with a pretty good command. 12:26.860 --> 12:34.090 So these are the two most common graphical user interface based installation tools are synaptic and 12:34.090 --> 12:34.870 GDP. 12:35.230 --> 12:41.830 So let's install synaptic and, you know, use it to install our support package, so apply to sudo 12:42.400 --> 12:45.910 apt get install synaptic. 12:47.140 --> 12:48.490 And yes. 12:50.370 --> 12:52.800 Uh, and this is stunning now. 13:00.210 --> 13:04.590 Once it's nothing installed, you can start it from settings here. 13:05.610 --> 13:06.300 Umm hmm. 13:07.990 --> 13:14.740 Sitting synaptic package manager as well, you can start it here as well, but you just you can start 13:14.740 --> 13:26.250 it soon for lesson, click here, which is what I will start with the settings option here. 13:26.260 --> 13:32.230 Synaptic Package Manager and uh, paste your password here as you can see it there. 13:32.260 --> 13:34.120 So we open it. 13:35.970 --> 13:37.470 And our synaptic package file. 13:38.070 --> 13:45.960 So now you can search the search for the package you are looking for seem to click on the Search tab. 13:46.410 --> 13:47.490 Uh, here. 13:49.190 --> 13:56.090 And you will find your applications here.