Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:00,570 --> 00:00:02,370 And map no port scan. 2 00:00:04,350 --> 00:00:08,160 Of course and map is a program that's used to perform active scans. 3 00:00:09,610 --> 00:00:16,080 And the discovery of the results will help you set your goals for what your pen test will be. 4 00:00:16,090 --> 00:00:22,660 It's gonna be unnecessary to scan all the ports for each IP especially when scanning large networks 5 00:00:23,300 --> 00:00:24,540 instead. 6 00:00:24,790 --> 00:00:30,820 Wouldn't it be quick and logical to detect open computers as first step and then only scan for ports 7 00:00:31,360 --> 00:00:33,640 on those computers Yeah. 8 00:00:33,660 --> 00:00:41,840 So let's do this then and map can perform a ping scan just to detect the computers that are turned on 9 00:00:43,250 --> 00:00:55,450 so scanning with S N consists of an ICMP echo request DCP send to port 443 DCP back to port 80 and then 10 00:00:55,460 --> 00:01:04,950 ICMP timestamp request by default only send packets are sent to Port eighty and four for three on the 11 00:01:04,950 --> 00:01:11,250 destination by a non privileged user so let's uh let me show you an example. 12 00:01:11,270 --> 00:01:17,630 So let's make an active discovery on the network where the virtual computers are that we have established 13 00:01:19,140 --> 00:01:27,240 so over this let's open all of the virtual computers that we have install open virtual box open Kelly 14 00:01:27,240 --> 00:01:39,600 Linux 10 0 dot to dot 1 5 open meadows plausible 10 dot 0 dot to dot for open in 1 to 10 0 down to that 15 00:01:39,600 --> 00:01:51,870 7 open windows 7 10 dot zero dot dude at six now log into Kelly Linux VM user name root password tour 16 00:01:53,060 --> 00:02:03,550 open up terminal and write this command and map as in ten down zero dot to dot zero slash to four and 17 00:02:03,550 --> 00:02:05,940 press enter okay. 18 00:02:05,980 --> 00:02:10,840 So here the scan results and we can see the computers that are open here. 2156