Nmap即網路對映器對Linux系統/網路管理員來說是一個開源且非常通用的工具。Nmap用於在遠端機器上探測網路，執行安全掃描，網路審計和搜尋開放埠。它會掃描遠端線上主機，該主機的作業系統，包過濾器和開放的埠。
我將用兩個不同的部分來涵蓋大部分NMAP的使用方法，這是nmap關鍵的第一部分。在下面的設定中，我使用兩臺已關閉防火牆的伺服器來測試Nmap命令的工作情況。
- 192.168.0.100 – server1.tecmint.com
- 192.168.0.101 – server2.tecmint.com
NMAP命令用法
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# nmap [Scan Type(s)] [Options] {target specification} |
如何在Linux下安裝NMAP
現在大部分Linux的發行版本像Red Hat，CentOS，Fedoro，Debian和Ubuntu在其預設的軟體包管理庫（即Yum 和 APT）中都自帶了Nmap，這兩種工具都用於安裝和管理軟體包和更新。在發行版上安裝Nmap具體使用如下命令。
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# yum install nmap [on Red Hat based systems] $ sudo apt-get install nmap [on Debian based systems] |
一旦你安裝了最新的nmap應用程式，你就可以按照本文中提供的示例說明來操作。
1. 用主機名和IP地址掃描系統
Nmap工具提供各種方法來掃描系統。在這個例子中，我使用server2.tecmint.com主機名來掃描系統找出該系統上所有開放的埠，服務和MAC地址。
使用主機名掃描
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[root@server1 ~]# nmap server2.tecmint.com Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 15:42 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.415 seconds You have new mail in /var/spool/mail/root |
使用IP地址掃描
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[root@server1 ~]# nmap 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 11:04 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 958/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.465 seconds You have new mail in /var/spool/mail/root |
2.掃描使用“-v”選項
你可以看到下面的命令使用“ –v “選項後給出了遠端機器更詳細的資訊。
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[root@server1 ~]# nmap -v server2.tecmint.com Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 15:43 EST Initiating ARP Ping Scan against 192.168.0.101 [1 port] at 15:43 The ARP Ping Scan took 0.01s to scan 1 total hosts. Initiating SYN Stealth Scan against server2.tecmint.com (192.168.0.101) [1680 ports] at 15:43 Discovered open port 22/tcp on 192.168.0.101 Discovered open port 80/tcp on 192.168.0.101 Discovered open port 8888/tcp on 192.168.0.101 Discovered open port 111/tcp on 192.168.0.101 Discovered open port 3306/tcp on 192.168.0.101 Discovered open port 957/tcp on 192.168.0.101 The SYN Stealth Scan took 0.30s to scan 1680 total ports. Host server2.tecmint.com (192.168.0.101) appears to be up ... good. Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.485 seconds Raw packets sent: 1681 (73.962KB) | Rcvd: 1681 (77.322KB) |
3.掃描多臺主機
你可以簡單的在Nmap命令後加上多個IP地址或主機名來掃描多臺主機。
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[root@server1 ~]# nmap 192.168.0.101 192.168.0.102 192.168.0.103 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:06 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 3 IP addresses (1 host up) scanned in 0.580 seconds |
4.掃描整個子網
你可以使用*萬用字元來掃描整個子網或某個範圍的IP地址。
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[root@server1 ~]# nmap 192.168.0.* Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:11 EST Interesting ports on server1.tecmint.com (192.168.0.100): Not shown: 1677 closed ports PORT STATE SERVICE 22/tcp open ssh 111/tcp open rpcbind 851/tcp open unknown Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 256 IP addresses (2 hosts up) scanned in 5.550 seconds You have new mail in /var/spool/mail/root |
從上面的輸出可以看到，nmap掃描了整個子網，給出了網路中當前網路中線上主機的資訊。
5.使用IP地址的最後一個位元組掃描多臺伺服器
你可以簡單的指定IP地址的最後一個位元組來對多個IP地址進行掃描。例如，我在下面執行中掃描了IP地址192.168.0.101，192.168.0.102和192.168.0.103。
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[root@server1 ~]# nmap 192.168.0.101,102,103 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:09 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 3 IP addresses (1 host up) scanned in 0.552 seconds You have new mail in /var/spool/mail/root |
6. 從一個檔案中掃描主機列表
如果你有多臺主機需要掃描且所有主機資訊都寫在一個檔案中，那麼你可以直接讓nmap讀取該檔案來執行掃描，讓我們來看看如何做到這一點。
建立一個名為“nmaptest.txt ”的文字檔案，並定義所有你想要掃描的伺服器IP地址或主機名。
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[root@server1 ~]# cat > nmaptest.txt localhost server2.tecmint.com 192.168.0.101 |
接下來執行帶“iL” 選項的nmap命令來掃描檔案中列出的所有IP地址。
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[root@server1 ~]# nmap -iL nmaptest.txt Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 10:58 EST Interesting ports on localhost.localdomain (127.0.0.1): Not shown: 1675 closed ports PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp 111/tcp open rpcbind 631/tcp open ipp 857/tcp open unknown Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 958/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 958/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 3 IP addresses (3 hosts up) scanned in 2.047 seconds |
7.掃描一個IP地址範圍
你可以在nmap執行掃描時指定IP範圍。
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[root@server1 ~]# nmap 192.168.0.101-110 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:09 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 10 IP addresses (1 host up) scanned in 0.542 seconds |
8.排除一些遠端主機後再掃描
在執行全網掃描或用萬用字元掃描時你可以使用“-exclude”選項來排除某些你不想要掃描的主機。
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[root@server1 ~]# nmap 192.168.0.* --exclude 192.168.0.100 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:16 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 255 IP addresses (1 host up) scanned in 5.313 seconds You have new mail in /var/spool/mail/root |
9.掃描作業系統資訊和路由跟蹤
使用Nmap，你可以檢測遠端主機上執行的作業系統和版本。為了啟用作業系統和版本檢測，指令碼掃描和路由跟蹤功能，我們可以使用NMAP的“-A“選項。
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[root@server1 ~]# nmap -A 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:25 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 80/tcp open http Apache httpd 2.2.3 ((CentOS)) 111/tcp open rpcbind 2 (rpc #100000) 957/tcp open status 1 (rpc #100024) 3306/tcp open mysql MySQL (unauthorized) 8888/tcp open http lighttpd 1.4.32 MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) No exact OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi). TCP/IP fingerprint: SInfo(V=4.11%P=i686-redhat-linux-gnu%D=11/11%Tm=52814B66%O=22%C=1%M=080027) TSeq(Class=TR%IPID=Z%TS=1000HZ) T1(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T2(Resp=N) T3(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T4(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T5(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) T6(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T7(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) PU(Resp=Y%DF=N%TOS=C0%IPLEN=164%RIPTL=148%RID=E%RIPCK=E%UCK=E%ULEN=134%DAT=E) Uptime 0.169 days (since Mon Nov 11 12:22:15 2013) Nmap finished: 1 IP address (1 host up) scanned in 22.271 seconds |
從上面的輸出你可以看到，Nmap顯示出了遠端主機作業系統的TCP / IP協議指紋，並且更加具體的顯示出遠端主機上的埠和服務。
10.啟用Nmap的作業系統探測功能
使用選項“-O”和“-osscan-guess”也幫助探測作業系統資訊。
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[root@server1 ~]# nmap -O server2.tecmint.com Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:40 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) No exact OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi). TCP/IP fingerprint: SInfo(V=4.11%P=i686-redhat-linux-gnu%D=11/11%Tm=52815CF4%O=22%C=1%M=080027) TSeq(Class=TR%IPID=Z%TS=1000HZ) T1(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T2(Resp=N) T3(Resp=Y%DF=Y%W=16A0%ACK=S++%Flags=AS%Ops=MNNTNW) T4(Resp=Y%DF=Y%W=0%ACK=O%Flags=Option -O and -osscan-guess also helps to discover OS R%Ops=) T5(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) T6(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=) T7(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=) PU(Resp=Y%DF=N%TOS=C0%IPLEN=164%RIPTL=148%RID=E%RIPCK=E%UCK=E%ULEN=134%DAT=E) Uptime 0.221 days (since Mon Nov 11 12:22:16 2013) Nmap finished: 1 IP address (1 host up) scanned in 11.064 seconds You have new mail in /var/spool/mail/root |
11.掃描主機偵測防火牆
下面的命令將掃描遠端主機以探測該主機是否使用了包過濾器或防火牆。
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[root@server1 ~]# nmap -sA 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:27 EST All 1680 scanned ports on server2.tecmint.com (192.168.0.101) are UNfiltered MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.382 seconds You have new mail in /var/spool/mail/root |
12.掃描主機檢測是否有防火牆保護
掃描主機檢測其是否受到資料包過濾軟體或防火牆的保護。
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[root@server1 ~]# nmap -PN 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:30 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.399 seconds |
13.找出網路中的線上主機
使用“-sP”選項，我們可以簡單的檢測網路中有哪些線上主機，該選項會跳過埠掃描和其他一些檢測。
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[root@server1 ~]# nmap -sP 192.168.0.* Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 11:01 EST Host server1.tecmint.com (192.168.0.100) appears to be up. Host server2.tecmint.com (192.168.0.101) appears to be up. MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 256 IP addresses (2 hosts up) scanned in 5.109 seconds |
14.執行快速掃描
你可以使用“-F”選項執行一次快速掃描，僅掃描列在nmap-services檔案中的埠而避開所有其它的埠。
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[root@server1 ~]# nmap -F 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:47 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1234 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.322 seconds |
15.檢視Nmap的版本
你可以使用“-V”選項來檢測你機子上Nmap的版本。
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[root@server1 ~]# nmap -V Nmap version 4.11 ( http://www.insecure.org/nmap/ ) You have new mail in /var/spool/mail/root |
16.順序掃描埠
使用“–r”選項表示不會隨機的選擇埠掃描。
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[root@server1 ~]# nmap -r 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 16:52 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.363 seconds |
17.列印主機介面和路由
你可以使用nmap的“–iflist”選項檢測主機介面和路由資訊。
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[root@server1 ~]# nmap --iflist Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:07 EST ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MAC lo (lo) 127.0.0.1/8 loopback up eth0 (eth0) 192.168.0.100/24 ethernet up 08:00:27:11:C7:89 **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.0.0/0 eth0 169.254.0.0/0 eth0 |
從上面的輸出你可以看到，nmap列舉出了你係統上的介面以及它們各自的路由資訊。
18.掃描特定的埠
使用Nmap掃描遠端機器的埠有各種選項，你可以使用“-P”選項指定你想要掃描的埠，預設情況下nmap只掃描TCP埠。
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[root@server1 ~]# nmap -p 80 server2.tecmint.com Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:12 EST Interesting ports on server2.tecmint.com (192.168.0.101): PORT STATE SERVICE 80/tcp open http MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) sca |
19.掃描TCP埠
你可以指定具體的埠型別和埠號來讓nmap掃描。
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[root@server1 ~]# nmap -p T:8888,80 server2.tecmint.com Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:15 EST Interesting ports on server2.tecmint.com (192.168.0.101): PORT STATE SERVICE 80/tcp open http 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.157 seconds |
20.掃描UDP埠
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[root@server1 ~]# nmap -sU 53 server2.tecmint.com Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:15 EST Interesting ports on server2.tecmint.com (192.168.0.101): PORT STATE SERVICE 53/udp open http 8888/udp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.157 seconds |
21.掃描多個埠
你還可以使用選項“-P”來掃描多個埠。
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[root@server1 ~]# nmap -p 80,443 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-18 10:56 EST Interesting ports on server2.tecmint.com (192.168.0.101): PORT STATE SERVICE 80/tcp open http 443/tcp closed https MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.190 seconds |
22.掃描指定範圍內的埠
您可以使用表示式來掃描某個範圍內的埠。
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[root@server1 ~]# nmap -p 80-160 192.168.0.101 |
23.查詢主機服務版本號
我們可以使用“-sV”選項找出遠端主機上執行的服務版本。
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[root@server1 ~]# nmap -sV 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:48 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 4.3 (protocol 2.0) 80/tcp open http Apache httpd 2.2.3 ((CentOS)) 111/tcp open rpcbind 2 (rpc #100000) 957/tcp open status 1 (rpc #100024) 3306/tcp open mysql MySQL (unauthorized) 8888/tcp open http lighttpd 1.4.32 MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 12.624 seconds |
24.使用TCP ACK (PA)和TCP Syn (PS)掃描遠端主機
有時候包過濾防火牆會阻斷標準的ICMP ping請求，在這種情況下，我們可以使用TCP ACK和TCP Syn方法來掃描遠端主機。
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[root@server1 ~]# nmap -PS 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:51 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.360 seconds You have new mail in /var/spool/mail/root |
25.使用TCP ACK掃描遠端主機上特定的埠
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[root@server1 ~]# nmap -PA -p 22,80 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:02 EST Interesting ports on server2.tecmint.com (192.168.0.101): PORT STATE SERVICE 22/tcp open ssh 80/tcp open http MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.166 seconds You have new mail in /var/spool/mail/root |
26. 使用TCP Syn掃描遠端主機上特定的埠
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[root@server1 ~]# nmap -PS -p 22,80 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:08 EST Interesting ports on server2.tecmint.com (192.168.0.101): PORT STATE SERVICE 22/tcp open ssh 80/tcp open http MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.165 seconds You have new mail in /var/spool/mail/root |
27.執行一次隱蔽的掃描
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[root@server1 ~]# nmap -sS 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:10 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.383 seconds You have new mail in /var/spool/mail/root |
28.使用TCP Syn掃描最常用的埠
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[root@server1 ~]# nmap -sT 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 18:12 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 111/tcp open rpcbind 957/tcp open unknown 3306/tcp open mysql 8888/tcp open sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 0.406 seconds You have new mail in /var/spool/mail/root |
29.執行TCP空掃描以騙過防火牆
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[root@server1 ~]# nmap -sN 192.168.0.101 Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 19:01 EST Interesting ports on server2.tecmint.com (192.168.0.101): Not shown: 1674 closed ports PORT STATE SERVICE 22/tcp open|filtered ssh 80/tcp open|filtered http 111/tcp open|filtered rpcbind 957/tcp open|filtered unknown 3306/tcp open|filtered mysql 8888/tcp open|filtered sun-answerbook MAC Address: 08:00:27:D9:8E:D7 (Cadmus Computer Systems) Nmap finished: 1 IP address (1 host up) scanned in 1.584 seconds You have new mail in /var/spool/mail/root |
以上就是NMAP的基本使用，我會在第二部分帶來NMAP更多的創意選項。至此，敬請關注我們，不要忘記分享您的寶貴意見。