# ИБ1. 25.02.21. nmap, zenmap

Получаем адрес в локальной сети:

$ ifconfig | grep inet         
        inet 172.20.0.1  netmask 255.255.0.0  broadcast 172.20.255.255
        inet 172.19.0.1  netmask 255.255.0.0  broadcast 172.19.255.255
        inet 172.18.0.1  netmask 255.255.0.0  broadcast 172.18.255.255
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        inet 172.30.9.142  netmask 255.255.192.0  broadcast 172.30.63.255
        inet6 fe80::b199:9143:27ec:46a7  prefixlen 64  scopeid 0x20<link>

Сканируем сеть с типом пакета Sync:

$ sudo nmap -sS 172.30.9.1-255

Nmap scan report for 172.30.9.1
Host is up (0.0042s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.2
Host is up (0.0046s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.3
Host is up (0.0038s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.4
Host is up (0.0048s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.5
Host is up (0.0044s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.6
Host is up (0.0047s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.7
Host is up (0.0044s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.8
Host is up (0.0045s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.9
Host is up (0.0055s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.10
Host is up (0.0039s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.11
Host is up (0.0040s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.12
Host is up (0.0038s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.13
Host is up (0.0034s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.14
Host is up (0.0036s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.15
Host is up (0.0042s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.16
Host is up (0.0066s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.17
Host is up (0.0044s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.18
Host is up (0.0041s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.19
Host is up (0.0042s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.20
Host is up (0.0043s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.21
Host is up (0.0050s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.22
Host is up (0.0051s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.23
Host is up (0.0057s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.24
Host is up (0.0057s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.25
Host is up (0.0041s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.26
Host is up (0.0035s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.27
Host is up (0.0041s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.28
Host is up (0.0044s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.29
Host is up (0.010s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.30
Host is up (0.0090s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.31
Host is up (0.0076s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.32
Host is up (0.0049s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.33
Host is up (0.0043s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.34
Host is up (0.0078s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.35
Host is up (0.0038s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.36
Host is up (0.0048s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.37
Host is up (0.0044s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.38
Host is up (0.0041s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.39
Host is up (0.0046s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.40
Host is up (0.0040s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.41
Host is up (0.012s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.42
Host is up (0.0047s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.43
Host is up (0.0052s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.44
Host is up (0.0040s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.45
Host is up (0.0040s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.46
Host is up (0.0035s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.47
Host is up (0.0037s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.48
Host is up (0.0064s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.49
Host is up (0.0040s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.50
Host is up (0.0041s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.51
Host is up (0.0043s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.52
Host is up (0.0039s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.53
Host is up (0.0041s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.54
Host is up (0.0044s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.55
Host is up (0.0057s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.56
Host is up (0.0046s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.57
Host is up (0.0042s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.58
Host is up (0.0042s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.59
Host is up (0.0044s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.60
Host is up (0.0038s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.61
Host is up (0.0083s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.62
Host is up (0.0063s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.63
Host is up (0.0049s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

Nmap scan report for 172.30.9.64
Host is up (0.0062s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)

$ sudo nmap -sS 172.30.9.1-15 | grep report -c
15

$ sudo nmap -sS 172.30.9.1-15 | grep MAC
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)
MAC Address: 00:50:56:8C:E0:03 (VMware)

Ищем только открытые порты:

$ sudo nmap -sS 172.30.9.1-15 | grep open
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain
53/tcp open  domain

Ищем только закрытые порты:

$ sudo nmap -sS 172.30.9.1-15 | grep close

$ sudo nmap -sS 172.30.9.1-200 | grep close
All 1000 scanned ports on 172.30.9.142 are closed

Сканируем с определением ОС:

$ sudo nmap -sS -O 172.30.9.1-15
Starting Nmap 7.91 ( https://nmap.org ) at 2021-02-25 20:04 MSK
Stats: 0:00:20 elapsed; 0 hosts completed (15 up), 15 undergoing SYN Stealth Scan
SYN Stealth Scan Timing: About 93.53% done; ETC: 20:04 (0:00:01 remaining)
Nmap scan report for 172.30.9.1
Host is up (0.0037s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.2
Host is up (0.0036s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.3
Host is up (0.0039s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.4
Host is up (0.0037s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.5
Host is up (0.0036s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.6
Host is up (0.0035s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.7
Host is up (0.0035s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.8
Host is up (0.0034s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.9
Host is up (0.0033s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.10
Host is up (0.0048s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.11
Host is up (0.0036s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.12
Host is up (0.0042s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.13
Host is up (0.0050s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.14
Host is up (0.0060s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

Nmap scan report for 172.30.9.15
Host is up (0.0042s latency).
Not shown: 999 filtered ports
PORT   STATE SERVICE
53/tcp open  domain
MAC Address: 00:50:56:8C:E0:03 (VMware)
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running: Linux 2.6.X|3.X
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/o:linux:linux_kernel:3
OS details: Linux 2.6.32 - 3.10, Linux 2.6.32 - 3.13, Linux 3.2 - 3.16, Linux 3.4
Network Distance: 1 hop

OS detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 15 IP addresses (15 hosts up) scanned in 25.21 seconds

Результат топологии vk.com по zenmap: