1 00:00:01,270 --> 00:00:07,050 ‫We will set up a virtual network structure for the applications we will do in the training. 2 00:00:07,060 --> 00:00:12,220 ‫In this way, we will prevent damage to real systems and other devices connected to the network. 3 00:00:12,220 --> 00:00:14,020 ‫While making applications. 4 00:00:14,110 --> 00:00:20,890 ‫It is necessary to set up a virtual network in the VMware program, because during the course, we will 5 00:00:20,890 --> 00:00:25,090 ‫ensure that all the virtual machines we will use are in the same virtual network. 6 00:00:25,210 --> 00:00:30,700 ‫A network is the ability of multiple devices to communicate with each other, wired or wirelessly. 7 00:00:30,790 --> 00:00:33,360 ‫It is used for connection to a network device. 8 00:00:33,370 --> 00:00:39,220 ‫Usually we will configure a Nat network so that all virtual machines are on the same network. 9 00:00:39,310 --> 00:00:45,760 ‫When we create a Nat network, the virtualization program will automatically assign IP to all computers 10 00:00:45,760 --> 00:00:46,750 ‫on this network. 11 00:00:46,990 --> 00:00:51,960 ‫YP is the address required for a computer to communicate with other computers over the network. 12 00:00:51,970 --> 00:00:54,430 ‫Each computer must have a different IP. 13 00:00:54,550 --> 00:00:58,420 ‫Every computer connected to the internet has an IP address. 14 00:00:58,750 --> 00:01:00,580 ‫It stands for address for computers. 15 00:01:00,580 --> 00:01:03,040 ‫Each computer must have a different address. 16 00:01:03,160 --> 00:01:07,870 ‫There are two different versions of the IP address IPv4 and IPv6. 17 00:01:07,900 --> 00:01:11,200 ‫The commonly used IPv4 is 32 bits long. 18 00:01:11,200 --> 00:01:14,940 ‫It consists of four eight bit numbers, each separated by dots. 19 00:01:15,250 --> 00:01:20,830 ‫Example 192.168 1.1. 20 00:01:20,920 --> 00:01:26,050 ‫Each group of numbers can have a value between zero 255. 21 00:01:26,140 --> 00:01:31,120 ‫If there are two computers with the same IP, there will be IP conflicts on the network. 22 00:01:31,150 --> 00:01:35,740 ‫Dhcp, the anemic host configuration protocol is used to prevent this. 23 00:01:35,890 --> 00:01:39,730 ‫Dhcp assigns a different IP to each computer. 24 00:01:39,760 --> 00:01:41,890 ‫This does not cause conflict. 25 00:01:42,130 --> 00:01:46,120 ‫VMware Nat network created to set up a Nat network. 26 00:01:46,270 --> 00:01:52,360 ‫When a virtual computer is installed on VMware Workstation player, it is created in Nat network by 27 00:01:52,360 --> 00:01:53,110 ‫default. 28 00:01:53,140 --> 00:01:59,470 ‫To see that the virtual computer you set up is in the Nat network, open the VMware Workstation Player 29 00:01:59,470 --> 00:02:00,190 ‫program. 30 00:02:00,340 --> 00:02:04,180 ‫Click on the virtual computer and click Edit Virtual Machine setting. 31 00:02:04,180 --> 00:02:08,650 ‫On the right side of the screen, the Virtual Machine settings screen will appear. 32 00:02:08,740 --> 00:02:12,160 ‫You can see that Nat is written in the network adapter section. 33 00:02:12,190 --> 00:02:16,210 ‫Do the same for other virtual computers and complete your checks. 34 00:02:40,540 --> 00:02:41,560 ‫Connection test. 35 00:02:41,710 --> 00:02:46,090 ‫Testing that the installed virtual machines can communicate with each other. 36 00:02:46,210 --> 00:02:51,610 ‫For this test, we need to check that each virtual computer can communicate with each other. 37 00:02:51,700 --> 00:02:56,860 ‫For this, it is enough to check whether the virtual computers are on the same network and ping each 38 00:02:56,860 --> 00:02:57,490 ‫other. 39 00:02:57,580 --> 00:03:03,220 ‫Now let's test that the Kali Linux virtual system can communicate with other virtual systems over the 40 00:03:03,220 --> 00:03:03,820 ‫network. 41 00:03:03,940 --> 00:03:06,220 ‫For this Open Kali Linux. 42 00:03:06,370 --> 00:03:11,350 ‫Click on terminal being the IP address of the Metasploitable computer. 43 00:03:11,440 --> 00:03:16,390 ‫To do this type ping Metasploit IP value and press enter. 44 00:03:16,480 --> 00:03:19,480 ‫The screen will show that the ping packets are going. 45 00:03:19,510 --> 00:03:22,180 ‫This means that communication is taking place. 46 00:03:23,590 --> 00:03:27,310 ‫Bring the IP address of the computer to do this. 47 00:03:27,340 --> 00:03:30,400 ‫Enter ping IP value and press enter. 48 00:03:30,520 --> 00:03:33,250 ‫The display shows that ping packets are going out. 49 00:03:34,680 --> 00:03:40,440 ‫In this case, communication is taking place using the IP address of the Windows 7 computer. 50 00:03:40,560 --> 00:03:44,820 ‫For this, enter ping win7 IP value and press enter key. 51 00:03:44,940 --> 00:03:48,480 ‫The screen shows that the ping packets are going. 52 00:03:48,600 --> 00:03:51,390 ‫In this case communication is taking place. 53 00:03:51,480 --> 00:03:55,500 ‫If it is seen on the screen that ping packets do not go. 54 00:03:55,530 --> 00:03:59,070 ‫This may be because ping requests are blocked on the firewall. 55 00:03:59,100 --> 00:04:00,930 ‫On the Windows 7 computer. 56 00:04:01,020 --> 00:04:06,060 ‫In this case, you can test whether there is communication by doing the reverse operation. 57 00:04:06,150 --> 00:04:08,670 ‫Log in to the Windows 7 computer. 58 00:04:08,760 --> 00:04:10,140 ‫Click the start button. 59 00:04:10,140 --> 00:04:12,420 ‫Type cmd in the search field. 60 00:04:12,720 --> 00:04:14,100 ‫Open the command line. 61 00:04:14,220 --> 00:04:21,540 ‫Enter the IP address of the Kali Linux computer in the command line, type ping Kelly IP value and press 62 00:04:21,540 --> 00:04:22,380 ‫enter key. 63 00:04:22,500 --> 00:04:25,410 ‫It is seen on the screen that ping packets are going. 64 00:04:25,680 --> 00:04:31,500 ‫In this case communication is taking place saying the IP address of Windows 8 computer. 65 00:04:31,650 --> 00:04:37,110 ‫For this ping one eight IP value is typed and enter key is pressed. 66 00:04:37,230 --> 00:04:39,870 ‫The ping packets are shown on the screen. 67 00:04:39,870 --> 00:04:42,350 ‫In this case, communication is taking place. 68 00:04:42,360 --> 00:04:45,330 ‫If it is seen on the screen that ping packets do not go. 69 00:04:45,360 --> 00:04:49,950 ‫This may be because ping requests are blocked on the firewall on the Windows 8 computer. 70 00:04:50,070 --> 00:04:54,660 ‫In this case, you can test whether there is communication by doing the reverse operation. 71 00:04:55,080 --> 00:04:57,600 ‫Log in to the Windows 8 computer. 72 00:04:57,690 --> 00:04:59,220 ‫Click the start button. 73 00:04:59,250 --> 00:05:01,350 ‫Type cmd in the search field. 74 00:05:01,530 --> 00:05:02,910 ‫Open the command line. 75 00:05:02,910 --> 00:05:09,330 ‫Enter the IP address of the Kali Linux computer in the command line, type ping Kali IP value and press 76 00:05:09,330 --> 00:05:10,110 ‫enter key. 77 00:05:10,260 --> 00:05:13,860 ‫It is seen on the screen that ping packets are going. 78 00:05:13,860 --> 00:05:16,350 ‫In this case communication is taking place. 79 00:05:16,470 --> 00:05:22,440 ‫Connection test ping the IP address of the windows XP computer for this type. 80 00:05:22,440 --> 00:05:26,100 ‫Ping windows XP IP value and press enter key. 81 00:05:26,310 --> 00:05:28,920 ‫The ping packets are shown on the screen. 82 00:05:29,010 --> 00:05:31,830 ‫In this case, communication is taking place. 83 00:05:31,980 --> 00:05:35,340 ‫If it is seen on the screen that ping packets do not go. 84 00:05:35,370 --> 00:05:41,100 ‫This may be because ping requests are blocked on the firewall on the windows XP computer. 85 00:05:41,220 --> 00:05:46,170 ‫In this case, you can test whether there is communication by doing the reverse operation. 86 00:05:46,320 --> 00:05:48,900 ‫Log in to the windows XP computer. 87 00:05:49,020 --> 00:05:52,860 ‫Click the start button, type cmd in the search field. 88 00:05:53,160 --> 00:05:54,540 ‫Open the command line. 89 00:05:54,690 --> 00:06:02,070 ‫Enter the IP address of the Kali Linux computer in the command line, type ping Kali IP value and press 90 00:06:02,070 --> 00:06:02,820 ‫enter key. 91 00:06:03,060 --> 00:06:06,240 ‫It is seen on the screen that ping packets are going. 92 00:06:06,450 --> 00:06:09,510 ‫In this case communication is taking place. 93 00:06:09,660 --> 00:06:11,820 ‫Now our Net network is ready.