WEBVTT 00:01.080 --> 00:05.360 Okay, now the program is working. 00:05.360 --> 00:05.760 Okay. 00:06.560 --> 00:08.600 I am listening on this port. 00:09.240 --> 00:12.520 Let's execute this again. 00:13.600 --> 00:16.200 I am coming back to my Kali machine. 00:16.200 --> 00:19.520 It is in connection established here. 00:19.520 --> 00:22.840 If I use dir, it is showing me. 00:23.040 --> 00:24.600 What if I use city? 00:25.240 --> 00:27.200 While I use city and hit enter. 00:28.400 --> 00:31.240 You see, it is showing me this now again. 00:31.240 --> 00:34.720 If I use dir still in this location. 00:34.720 --> 00:37.280 If I use city to this top. 00:39.640 --> 00:44.680 Okay, this pop, you see it is not working okay? 00:44.720 --> 00:47.920 And that is because we are using netcat right now. 00:48.080 --> 00:48.480 Okay. 00:48.960 --> 00:56.760 So we are using the netcat program here to establish the connection or to as a listener actually. 00:59.080 --> 00:59.640 And. 00:59.720 --> 01:00.160 It. 01:01.760 --> 01:05.800 Uh, when I come back here, you see, it gives me the city desk that is not working. 01:05.800 --> 01:07.880 Returned non-zero exit status one. 01:08.640 --> 01:10.520 The good way is to. 01:11.920 --> 01:18.440 Inside the column machine, you need to create your own listener by using socket. 01:18.440 --> 01:21.600 So let's go and create our own listener here. 01:25.840 --> 01:28.840 Okay I have the listener file here. 01:29.480 --> 01:34.080 And now let's use this file to create a listener okay. 01:34.120 --> 01:37.920 In Kali Linux machine instead of using netcat here. 01:38.640 --> 01:43.720 So here again we are going to use socket library. 01:43.720 --> 01:47.440 So you need to import socket okay. 01:47.440 --> 01:52.880 Here let's create a listener object I'm going to create listener. 01:56.080 --> 01:57.040 This is equal to. 01:57.280 --> 02:01.120 We have the socket dot Socket. 02:03.160 --> 02:05.880 Okay, here we have two things. 02:05.880 --> 02:06.160 Okay. 02:06.200 --> 02:08.520 One of them is socket. 02:11.280 --> 02:11.800 Dot. 02:13.880 --> 02:18.040 Uh, a f underscore. 02:22.760 --> 02:31.880 In it, and also we have another thing which is socket dot f underscore. 02:33.440 --> 02:34.120 Not really. 02:34.160 --> 02:45.920 If it was is for xk underscore uh string that is here okay. 02:45.960 --> 02:49.160 Now we have our object which is the listener object. 02:49.400 --> 02:54.240 Now I can use these um, to listen. 02:54.280 --> 02:54.680 Okay. 02:55.440 --> 02:56.520 So let's use it. 02:56.640 --> 03:07.910 We have And listener dot asset socket option. 03:08.510 --> 03:14.070 Here we need to give the socket dot. 03:16.390 --> 03:20.430 Esol underscore. 03:20.590 --> 03:22.110 It is not giving me suggestion. 03:22.110 --> 03:23.830 It is giving me very slowly. 03:24.710 --> 03:29.190 And this is going to be socket which is the last one here. 03:30.710 --> 03:31.710 This one okay. 03:32.350 --> 03:34.870 And the next one is we have another option. 03:34.870 --> 03:36.790 And that is socket. 03:39.550 --> 03:44.430 Uh socket dot is or. 03:46.590 --> 03:52.870 Underscore r e use adder or something like that. 03:55.310 --> 03:55.830 This one. 03:55.870 --> 03:56.270 Okay. 03:56.670 --> 03:59.430 So now we have the socket option. 03:59.750 --> 04:05.790 And we have one more thing here that is to set it to number one. 04:06.510 --> 04:07.110 Okay. 04:07.150 --> 04:16.030 If you go to um socket documentation you will find all this thing there. 04:16.030 --> 04:18.870 And also we need to build the connection. 04:19.190 --> 04:25.990 So let's use again listener dot bind okay. 04:26.030 --> 04:28.310 Which is going to be a connection. 04:28.590 --> 04:32.390 So here we need to give the IP address for the listener. 04:32.390 --> 04:34.310 So the listener is called Linux. 04:34.590 --> 04:38.190 We give it ten 0 to 4. 04:38.190 --> 04:42.190 And also the port which is going to be 444. 04:43.030 --> 04:45.390 And now this will build the connection. 04:45.430 --> 04:46.230 Okay. 04:46.230 --> 04:48.070 This will listen that. 04:48.070 --> 04:51.710 So here you need to give one more one extra parenthesis. 04:58.950 --> 04:59.230 Okay. 04:59.270 --> 05:04.670 The next thing is to accept this, okay? 05:04.710 --> 05:08.390 Accept the connection. 05:08.430 --> 05:11.430 And we are done here now. 05:11.430 --> 05:19.390 And before we accept and after we accept, we can print something, a text or a message or something. 05:19.790 --> 05:22.870 So here I need to print. 05:26.470 --> 05:27.390 For example. 05:27.550 --> 05:28.510 Waiting. 05:32.950 --> 05:38.110 Waiting for incoming connection. 05:38.150 --> 05:38.950 Okay. 05:38.950 --> 05:52.030 And also down here, after it is connected, we can have another text message like connection established 05:52.030 --> 05:52.990 or something like that. 05:52.990 --> 05:53.390 Okay. 05:54.150 --> 05:56.430 Connection established or got a connection. 05:58.110 --> 05:59.230 Got a connection. 06:02.510 --> 06:10.630 Okay, now, if I save this and go back here, let's use Python. 06:10.630 --> 06:13.190 We have listener.py. 06:14.070 --> 06:24.390 While I'm executing this it is giving me an error and that is uh waiting for incoming or waiting for 06:24.430 --> 06:25.630 incoming connection. 06:26.710 --> 06:29.870 And then it is giving me an error. 06:29.870 --> 06:30.710 What is that? 06:31.230 --> 06:33.110 Line seven okay. 06:33.150 --> 06:37.070 Listener dot accept is an error here. 06:42.950 --> 06:43.350 Okay. 06:45.430 --> 06:47.950 So the problem is with accept method. 06:47.990 --> 06:48.390 Okay. 06:49.030 --> 06:57.030 Let's go back here and see the accept method if zero here and go back here. 06:57.030 --> 07:03.340 Yea, but you re-execute this and still it gives me an error. 07:03.460 --> 07:10.420 It says that it actually takes one positional argument, but two were given before it wasn't like this. 07:10.460 --> 07:14.620 Okay, so invalid argument. 07:15.020 --> 07:16.420 Let's see what is the problem. 07:17.740 --> 07:21.740 Okay, the problem is with this. 07:21.780 --> 07:24.300 We don't need to give any argument here. 07:24.340 --> 07:24.780 Okay. 07:26.540 --> 07:31.820 And here after we try to build the connection we need to listen. 07:31.860 --> 07:35.980 Okay I forgot to give this here. 07:36.020 --> 07:38.180 Okay, listen. 07:39.780 --> 07:41.220 Now give zero here. 07:41.460 --> 07:43.860 Save it and go back to your terminal. 07:44.660 --> 07:46.420 Try to execute the program. 07:46.420 --> 07:48.460 Waiting for incoming connection. 07:48.500 --> 07:50.300 Go to your windows machine. 07:51.660 --> 07:53.900 Okay, let's execute this once again. 07:54.740 --> 07:57.820 It says that connection And receive, 07:59.020 --> 08:02.820 uh. 08:02.860 --> 08:03.100 Okay. 08:03.100 --> 08:07.100 We don't need to, uh, send anything from here. 08:07.420 --> 08:09.220 Let me remove this from here. 08:09.220 --> 08:09.500 Now. 08:13.780 --> 08:14.220 Okay. 08:19.100 --> 08:21.340 Got, uh, connection. 08:21.380 --> 08:25.300 Okay, so now you see that we got the connection here. 08:26.540 --> 08:28.540 This message, when this message is printed. 08:28.540 --> 08:37.460 So it is showing that, uh, this part, the listening listener dot accept part has been executed. 08:37.460 --> 08:48.260 So that means the connection is now between the Polly and Linux, and windows is established for a while, 08:48.260 --> 08:49.380 for a small time. 08:49.420 --> 08:50.300 Okay. 08:50.340 --> 08:52.580 And then we got this message. 08:52.980 --> 08:54.100 Got a connection. 08:54.260 --> 08:55.860 So perfect. 08:55.860 --> 08:57.500 Let's go and continue this.