WEBVTT 00:02.230 --> 00:08.560 In this lecture of our course, you will learn how to install and create a network sniffer with Skype. 00:08.710 --> 00:16.480 So the first you can open a terminal and let's understand the few things first. 00:16.510 --> 00:21.820 So in Linux there are two user privileges, user and root. 00:21.820 --> 00:25.150 So and the environment for both users is different. 00:25.150 --> 00:31.050 So higher privileges are required for system level commands to send and receive packets. 00:31.060 --> 00:35.860 We will need to install Skype as a root user as well as a normal user. 00:35.860 --> 00:41.410 So we will write our program as a normal user and when we run it, we will run it as a root. 00:41.500 --> 00:45.430 So as sending packets requires higher privileges in Linux. 00:45.430 --> 00:51.670 So you can think of it as the running run as administrator equivalent in Windows. 00:51.670 --> 00:55.240 So you will see what I mean in the moment. 00:55.240 --> 01:05.780 So to install as a root user you will write sudo pip3 install scapy and here you will enter the password. 01:05.780 --> 01:09.220 And as you can see here, its requirement already satisfied. 01:09.230 --> 01:11.150 I already installed scapy. 01:11.150 --> 01:16.100 So running Pip as a root user can result in a broken permissions and conflicting behavior with the system 01:16.100 --> 01:21.110 pack age manager and it's recommended to use virtual environment instead. 01:21.110 --> 01:25.220 So it's you can just this is just a warning here, not an error. 01:25.220 --> 01:33.920 So here if you don't have installed so this code, this command will install Skype with administrator 01:33.920 --> 01:34.850 root privileges. 01:34.850 --> 01:42.320 So once this is done, open your PyCharm or Visual Studio code or your IDE for Python. 01:42.620 --> 01:46.610 And here to create a new project. 01:46.610 --> 01:48.650 This is the new project, empty project here. 01:48.650 --> 01:55.760 And keep in mind that if you face problems you will need to update your systems python with this command 01:55.760 --> 02:13.120 here sudo apt get update and sudo apt get upgrade and sudo apt get install python three where virtual 02:13.120 --> 02:19.990 env here and as you can see sudo we need to write this here firstly. 02:21.810 --> 02:25.170 There's a there's a spelling error here. 02:33.160 --> 02:39.520 In my system, the Python virtual environment is already installed, but maybe it's not up to date, 02:39.520 --> 02:41.320 so it's good. 02:42.940 --> 02:48.900 Action to check the virtual environment and the packages and operate them. 02:51.350 --> 02:54.680 And here, as you can see, it's 44.6MB. 02:55.190 --> 02:57.080 It's almost done. 03:00.820 --> 03:06.160 Fetched 65.4MB in 36 seconds. 03:07.860 --> 03:08.700 And that's it. 03:08.700 --> 03:11.760 So after the operation, you said you want to continue? 03:11.790 --> 03:12.900 Yes. 03:13.920 --> 03:17.310 As you can see, all of these plugins will update now. 04:12.090 --> 04:12.300 Here. 04:12.300 --> 04:16.110 As you can see, it's almost six minutes and 27 seconds. 04:16.110 --> 04:19.620 And I will stop the lecture here and we'll continue after done. 04:22.060 --> 04:29.590 And now, since our installation and upgrade process is done, we can go back to PyCharm to write our 04:29.590 --> 04:30.490 programs. 04:30.790 --> 04:37.930 So now here we will create a new virtual environment for this specific project. 04:38.380 --> 04:45.040 But here in PyCharm, we will we are automatically creating this virtual environment when you are creating 04:45.040 --> 04:45.760 the. 04:47.280 --> 04:48.150 New project here. 04:48.150 --> 04:55.740 And as you can see here, we are creating new environment with this here and in with PyCharm. 04:55.740 --> 04:57.950 You don't need to create that environment. 04:57.960 --> 05:06.360 So after that, we will firstly install a scapy for this project. 05:07.930 --> 05:15.010 And here we will open terminal from here and we will type pip3 install CP. 05:18.560 --> 05:21.470 And as you can see, it's downloaded and installed. 05:21.710 --> 05:27.920 So in this lecture, we have learned how to how we can install scapy in our virtual environment and 05:27.920 --> 05:31.370 how to see whether it has been installed properly. 05:31.370 --> 05:37.310 And you also keep in mind that some functionalities of scapy require the program to be run with higher 05:37.310 --> 05:40.460 privileges, otherwise they won't work. 05:40.490 --> 05:47.300 In next lecture we will learn more about how Scapy is used and how we can manipulate network packets 05:47.300 --> 05:48.230 with Scapy.