Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:00,650 --> 00:00:12,530 Scanning specific ports within map and map P ports and target IP so you don't want to scan just the 2 00:00:12,590 --> 00:00:23,630 top 20 the top 100 or the top 1000 ports within map instead we can set the ports that we want to scan. 3 00:00:23,670 --> 00:00:31,200 This way we can scan faster and way more specifically unless otherwise stated Our scans will be valid 4 00:00:31,200 --> 00:00:37,510 for the E DCP ports if we want to perform a UDP port scan. 5 00:00:37,720 --> 00:00:39,640 We'll need to specify it on the command line. 6 00:00:40,700 --> 00:00:48,380 Remember in our previous lesson we saw how to do it so to perform a UDP port scan we need to use the 7 00:00:48,500 --> 00:00:51,290 S U parameter and the command line. 8 00:00:51,410 --> 00:00:57,560 For example let's scan some of the DCP and UDP ports on our meter spoil the gems that we've already 9 00:00:57,560 --> 00:00:58,110 set up. 10 00:00:59,220 --> 00:01:08,050 So we can perform the most commonly used ECPAT edge TGP port and DCP for 4 3 HD UDP s port and UDP fifty 11 00:01:08,050 --> 00:01:12,000 three which is the DNS port scans in sequence. 12 00:01:12,180 --> 00:01:23,430 Okay so one virtual box of Kelly Linux open meadows portable and log in accounting Linux Ms open terminal 13 00:01:24,120 --> 00:01:34,020 and write the command and map 10 dot 0 dot to dot for P fifty three eighty four for three presenter 14 00:01:35,920 --> 00:01:40,840 and this scan results appear so let's have a look. 15 00:01:40,870 --> 00:01:49,750 So it shows the DP eighty and four four three boards now since we didn't enter the UDP parameter the 16 00:01:49,750 --> 00:01:56,770 UDP port did not scan so let's do a UDP port scan and have a look. 17 00:01:57,870 --> 00:02:09,320 And map as you P fifty three eighty four four three press enter and here you can see DCP does not show 18 00:02:09,320 --> 00:02:18,570 ports eighty and four for three since we enter the UDP parameter only the UDP port shows up as a skinny 19 00:02:18,640 --> 00:02:26,790 result now both DCP and UDP port scanning can be performed at the same time. 20 00:02:26,970 --> 00:02:36,060 So when you want to do that you write this into the command line and map SD as you e fifty three eighty 21 00:02:36,570 --> 00:02:46,450 four four three and press enter and there you have it both DCP and UDP ports show up in the port scan 22 00:02:46,690 --> 00:02:47,380 results 23 00:02:50,410 --> 00:03:02,080 scanning a specific port range within map now what was the port before so we learned what is used for. 24 00:03:02,190 --> 00:03:08,030 Well there are sixty five thousand five hundred and thirty five port numbers in most computer systems 25 00:03:09,140 --> 00:03:10,190 with any map. 26 00:03:10,190 --> 00:03:11,330 We can scan. 27 00:03:11,820 --> 00:03:13,510 Well a wide range of ports. 28 00:03:13,520 --> 00:03:14,270 Right. 29 00:03:14,360 --> 00:03:22,110 So this method can be used if this scan results based on the default port numbers are negative so this 30 00:03:22,110 --> 00:03:25,580 means a well-known services are always targeted. 31 00:03:25,830 --> 00:03:34,070 Actors often give priority to scanning these ports like the SO in this case by changing the number of 32 00:03:34,070 --> 00:03:43,310 these ports maybe an attack can be prevented because many hackers use ready made attack systems they're 33 00:03:43,330 --> 00:03:51,190 always going to scan the default for so for this reason the security level can be increased just by 34 00:03:51,190 --> 00:03:55,710 changing the port number of a service used within the application. 35 00:03:55,870 --> 00:04:02,690 For example port number four for three HDTV ask can be changed to 14 for four 3. 36 00:04:03,030 --> 00:04:06,950 In this case attacks to the age DDP service will be prevented. 37 00:04:07,030 --> 00:04:13,630 That map also allows you to scan specific port ranges for these such situation. 38 00:04:13,670 --> 00:04:24,890 So over this and map port P port number port number and press Enter now please make a note that unless 39 00:04:24,890 --> 00:04:30,990 you specify otherwise our scans will be valid for the DCP ports. 40 00:04:31,250 --> 00:04:38,340 And if we want to perform a UDP port scan we just need to specify it on the command line in our previous 41 00:04:38,340 --> 00:04:39,040 session. 42 00:04:39,060 --> 00:04:44,490 I believe we saw how to do this to perform a UDP port scan. 43 00:04:44,490 --> 00:04:54,000 We just need to use the SMU parameter in the command line so let's do an example will scan for specific 44 00:04:54,000 --> 00:04:56,670 DCP and UDP ports on the meds. 45 00:04:56,670 --> 00:05:06,250 Floyd will the MS that we've already set up so open up virtual box open in Linux open meadows portable 46 00:05:07,520 --> 00:05:17,820 and log in to the Kelly Linux VM open terminal and write this command and map 10 dot 0 dot to dot for 47 00:05:18,570 --> 00:05:27,790 P 1000 dash 2000 right center and this year end results come up. 48 00:05:28,180 --> 00:05:38,240 So here you can see it scan the DCP 1000 a DCP 2000 port range and it shows the results now both DCP 49 00:05:38,240 --> 00:05:42,540 and UDP scanning of course can be performed at the same time when you want to do that. 50 00:05:42,560 --> 00:05:52,700 You just put this on the command line and map SD as you p 1000 to 2000 and press enter and there you 51 00:05:52,700 --> 00:06:00,410 have the scan results of the TTP and UDP ports between 1000 and 2000. 5982