我經(jīng)常用它來檢測(cè)遠(yuǎn)程的 Windows服務(wù)器的ip地址，因?yàn)椴皇枪潭╥p地址，該服務(wù)器的ip地址會(huì)經(jīng)常變化，但是有個(gè)規(guī)律，只在一個(gè)網(wǎng)段內(nèi)變化，這樣就給ip地址的確定帶來 了方便。

1. 如果沒有安裝nmap，就安裝

 yum install -y nmap

2. 掃描指定網(wǎng)段的遠(yuǎn)程桌面連接端口

nmap -sT -p3389 218.206.112.0/24

3. 如果覺得輸出太多，可以用 grep 命令過濾

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

下面是操作的消息記錄，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]#