Linux 系统/网络管理员的 29 个 NMAP 命令实用示例
Nmap 又名 Network Mapper 是一款开源且非常通用的 Linux 系统/网络管理员工具。 Nmap用于探索网络、执行安全扫描、网络审核和查找开放端口在远程机器上。它扫描远程主机上运行的实时主机、操作系统、数据包过滤器和开放端口。
我将在两个不同的部分中介绍大部分 NMAP 用法,这是 nmap 的第一部分。在此设置中,我使用了两台没有防火墙的服务器来测试 Nmap 命令的工作情况。
- 192.168.0.100 – server1.howtoing.com
- 192.168.0.101 – server2.howtoing.com
Nmap命令用法
nmap [Scan Type(s)] [Options] {target specification}
如何在 Linux 中安装 NMAP
当今的大多数 Linux 发行版,例如 Red Hat、CentOS、Fedoro、Debian 和 Ubuntu 已将 Nmap 包含在其名为 Yum 和 APT 的默认包管理存储库中。这两个工具都用于安装和管理软件包和更新。要在特定发行版上安装Nmap,请使用以下命令。
yum install nmap [on Red Hat based systems]
sudo apt-get install nmap [on Debian based systems]
安装最新的 nmap 应用程序后,您可以按照本文中提供的示例说明进行操作。
1. 使用主机名和 IP 地址扫描系统
Nmap 工具提供了多种扫描系统的方法。在此示例中,我使用主机名 server2.howtoing.com 执行扫描,以找出系统上所有开放的端口、服务和 MAC 地址。
使用主机名扫描
[root@server1 ~]# nmap server2.linux-console.net
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 15:42 EST
Interesting ports on server2.linux-console.net (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 地址扫描
[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.linux-console.net (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.使用“-v”选项扫描
您可以看到以下带有“-v”选项的命令提供了有关远程计算机的更多详细信息。
[root@server1 ~]# nmap -v server2.linux-console.net
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.linux-console.net (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.linux-console.net (192.168.0.101) appears to be up ... good.
Interesting ports on server2.linux-console.net (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)
扫描多个主机
您只需使用 Nmap 写入 IP 地址或主机名即可扫描多个主机。
[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.linux-console.net (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. 扫描整个子网
您可以通过提供*通配符来使用Nmap扫描整个子网或IP范围。
[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.linux-console.net (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.linux-console.net (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
在上面的输出中,您可以看到 nmap 扫描了整个子网,并提供了有关网络中Up的主机的信息。
5. 使用 IP 地址的最后八位字节扫描多个服务器
您可以通过简单指定 IP 地址的最后一个八位字节来对多个 IP 地址执行扫描。例如,这里我对 IP 地址 192.168.0.101、192.168.0.102 和 192.168.0.103 执行扫描。
[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.linux-console.net (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. 从文件中扫描主机列表
如果您有更多主机需要扫描,并且所有主机详细信息都写入一个文件中,您可以直接要求 nmap 读取该文件并执行扫描。让我们看看如何做到这一点。
创建一个名为“nmaptest.txt”的文本文件,并定义要进行扫描的服务器的所有 IP 地址或主机名。
[root@server1 ~]# cat > nmaptest.txt
localhost
server2.linux-console.net
192.168.0.101
接下来,使用 nmap 命令运行带有“iL”选项的以下命令来扫描文件中列出的所有 IP 地址。
[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.linux-console.net (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.linux-console.net (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. 扫描IP地址范围
您可以在使用 Nmap 执行扫描时指定 IP 范围。
[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.linux-console.net (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. 扫描网络,排除远程主机
您可以在执行完整网络扫描时或使用“-排除”选项使用通配符进行扫描时排除某些主机。
[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.linux-console.net (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. 扫描操作系统信息和Traceroute
使用 Nmap,您可以检测远程主机上正在运行的操作系统和版本。要启用操作系统和版本检测、脚本扫描和跟踪路由,我们可以在 NMAP 中使用“-A”选项。
[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.linux-console.net (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
You have new mail in /var/spool/mail/root
在上面的输出中,您可以看到 nmap 提供了远程主机上运行的 OS 的 TCP/IP 指纹,并且更具体远程主机上运行的端口和服务。
10. 使用 Nmap 启用操作系统检测
使用选项“-O”和“-osscan-guess”也有助于发现操作系统信息。
[root@server1 ~]# nmap -O server2.linux-console.net
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:40 EST
Interesting ports on server2.linux-console.net (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. 扫描主机以检测防火墙
以下命令将在远程主机上执行扫描,以检测主机是否使用任何数据包过滤器或防火墙。
[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.linux-console.net (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. 扫描主机以检查其受防火墙保护
扫描主机是否受到任何数据包过滤软件或防火墙的保护。
[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.linux-console.net (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. 找出网络中的实时主机
借助“-sP”选项,我们可以简单地检查网络中哪些主机处于活动状态,使用此选项 nmap 会跳过端口检测和其他操作。
[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.linux-console.net (192.168.0.100) appears to be up.
Host server2.linux-console.net (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. 执行快速扫描
您可以使用“-F”选项执行快速扫描,扫描 nmap-services 文件中列出的端口并保留所有其他端口。
[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.linux-console.net (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.查找Nmap版本
您可以使用“-V”选项找到您机器上运行的Nmap版本。
[root@server1 ~]# nmap -V
Nmap version 4.11 ( http://www.insecure.org/nmap/ )
You have new mail in /var/spool/mail/root
16. 连续扫描端口
使用“-r”标志不随机化。
[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.linux-console.net (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. 打印主机接口和路由
您可以使用“–iflist”选项使用nmap查找主机接口和路由信息。
[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
在上面的输出中,您可以看到地图列出了连接到您的系统的接口及其各自的路由。
18. 扫描特定端口
有多种选项可以使用 Nmap 发现远程计算机上的端口。您可以使用“-p”选项指定希望nmap扫描的端口,默认情况下nmap仅扫描TCP端口。
[root@server1 ~]# nmap -p 80 server2.linux-console.net
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:12 EST
Interesting ports on server2.linux-console.net (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. 扫描 TCP 端口
您还可以使用 nmap 指定要扫描的特定端口类型和编号。
[root@server1 ~]# nmap -p T:8888,80 server2.linux-console.net
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:15 EST
Interesting ports on server2.linux-console.net (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. 扫描UDP端口
[root@server1 ~]# nmap -sU 53 server2.linux-console.net
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-11-11 17:15 EST
Interesting ports on server2.linux-console.net (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. 扫描多个端口
您还可以使用选项“-p”扫描多个端口。
[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.linux-console.net (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. 按网络范围扫描端口
您可以使用表达式扫描具有范围的端口。
[root@server1 ~]# nmap -p 80-160 192.168.0.101
23.查找主机服务版本号
我们可以使用“-sV”选项找到远程主机上运行的服务版本。
[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.linux-console.net (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) 扫描远程主机
有时包过滤防火墙会阻止标准的ICMP ping请求,在这种情况下,我们可以使用TCP ACK和TCP Syn方法来扫描远程主机。
[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.linux-console.net (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 扫描远程主机的特定端口
[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.linux-console.net (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 扫描远程主机的特定端口
[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.linux-console.net (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. 执行秘密扫描
[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.linux-console.net (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 检查最常用的端口
[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.linux-console.net (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. 执行 tcp null 扫描来欺骗防火墙
[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.linux-console.net (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
现在 NMAP 就这样了,我将在本系列的第二部分中提出 NMAP 的更多创意选项。在此之前,请继续关注我们,不要忘记分享您的宝贵意见。