root@ubuntu:~# nmap -F -n -sS 192.168.22.25 Starting Nmap 7.60 ( https://nmap.org ) at 2018-05-30 23:15 CEST Nmap scan report for 192.168.22.25 Host is up (0.077s latency). Not shown: 94 closed ports PORT STATE SERVICE 7/tcp filtered echo 80/tcp open http 444/tcp filtered snpp 1026/tcp filtered LSA-or-nterm 1900/tcp open upnp 49156/tcp filtered unknown MAC Address: 00:30:BD:B2:11:E4 (Belkin Components) Nmap done: 1 IP address (1 host up) scanned in 1.70 seconds
Scan servers listen on port 22
root@ubuntu:~# nmap -Pn -p22 -n 172.16.120.0/24 --open -oG - | awk '/22\/open/{ print $2 }' 172.16.120.185 172.16.120.188 172.16.120.161