我常常用它來檢測長途的 Windows處事器的ip地點，因為不是牢靠ip地點，該處事器的ip地點會常常變革，可是有個紀律，只在一個網段內變革，這樣就給ip地點簡直定帶來 了利便。

1. 假如沒有安裝nmap，就安裝

 yum install -y nmap

2. 掃描指定網段的長途桌面毗連端口

nmap -sT -p3389 218.206.112.0/24

3. 假如以為輸出太多，九江服務器 東莞服務器，可以用 grep 呼吁過濾

nmap -sT -p3389 218.206.112.0/24 | grep -B2 open

下面是操縱的動靜記錄，備查。

.

[[email protected] opt]# nmap

-bash: nmap: command not found

[[email protected] opt]# yum install -y nmap

...

[[email protected] opt]# nmap -sT -p3389 218.206.112.0/24

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2012-10-26 15:36 CST

Interesting ports on 218.206.112.1:

PORT     STATE  SERVICE

3389/tcp closed ms-term-serv

Interesting ports on 218.206.112.11:

PORT     STATE    SERVICE

3389/tcp filtered ms-term-serv

...

[[email protected] opt]# nmap -sT -p3389 218.206.112.0/24 | grep -B2 open

Interesting ports on 218.206.112.100:

PORT     STATE SERVICE

3389/tcp open  ms-term-serv

--

Interesting ports on 218.206.112.132:

PORT     STATE SERVICE

3389/tcp open  ms-term-serv

[[email protected] opt]#