root@kali:~# nmap 192.168.41.136
Starting Nmap 6.40 at 2014-04-19 16:21 CST
Nmap scan report for www.benet.com (192.168.41.136)
Host is up (0.00022s latency).
Not shown: 996 closed ports
PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
23/tcp open telnet
25/tcp opne smtp
53/tcp open domain
80/tcp open bios-ssn
445/tcp open microsoft-ds
512/tcp open exec
513/tcp open login
514/tcp open shell
1099/tcp open rmiregistry
1524/tcp open ingreslock
2049/tcp open nfs
2121/tcp open ccproxy-ftp
3306/tcp open mysql
5432/tcp open postgresql
5900/tcp open vnc
6000/tcp open X11
6667/tcp open irc
8009/tcp open ajp13
8180/tcp open unknown
MAC Address: 00:0C:29:31:02:17 (VMware)
Nmap done: 1 IP address (1 host up) scanned in 0.28 seconds
輸出的信息顯示了主機192.168.41.136上開放的所有端口，如22、53、80和111等。