Python learning-python-nmap for efficient port scanners

Python's third-party module, PYTHON-NMAP for efficient port scanning.

First, the preparatory work

Yum-y Install nmap #安装nmap工具pip install python-nmap==0.4.0 #python2.7 Environment using PIP installation 0.4.0 version of the third-party module

Ii. description of common methods of modules

Here we mainly accept the Python-nmap module of the two common classes, one is the Portscanner () class, implementation of a NMAP tool port scanning function encapsulation, and the other for the Portscannerhostdict () class, to achieve storage and access to host scan results

1, Portscanner () class common methods

1-1. Scan () method
Scan (self, hosts= ' 127.0.0.1 ', Ports=none, arguments= '-SV ') method for scanning of specified host, port, and Namp command-line parameters. The parameter hosts is a string type, which indicates the host address of the scan, and the format can be expressed as "scanme.nmap.org", "192.116.0-255.1-127", "216.163.128.20/20"; The parameter ports is a string type that represents the scanned port, which can be represented by "22,53,110,143-4564", and the parameter Namp command-line arguments in the form "-SU-SX-SC", for example:

NM = Nmap. Portscanner () Nm.scan (' 192.168.209.121-122 ', ' 22,80 ')

1-2. Command_line () method
The Command_line (self) method, the returned scan method maps to the specific NMAP command line, such as:

>>> nm.command_line () u ' Nmap-ox-P 22,80-sv 192.168.209.121-122 '

1-3. Scaninfo () method
The Scaninfo (self) method returns NMAP scan information in the form of a dictionary type, such as:

>>>nm.scanninfo () {' TCP ': {' services ': ' 22,80 ', ' method ': ' Syn '}}

1-4. All_hosts () method
The All_hosts (self) method returns the list of hosts scanned by Nmap, in the form of a listing type, for example:

[' 192.168.209.121 ', ' 192.168.209.122 ']

2, Portscannerhostdict () class common methods

2-1. Hostname () method
The hostname (self) method, which returns the host name of the scanned object, such as:

>>> nm[' 192.168.209.121 '].hostname () ' Liuyazhuang '

2-2. State () method
The State (self) method, which returns the status of the scanned object, including the status of 4 (up, down, unknown, skipped), such as:

>>> nm[' 192.168.209.121 '].state () ' Up '

2-3. All_protocols () method
The All_protocols (self) method, which returns the scanned protocol, such as:

>>> nm[' 192.168.209.121 '].all_protocols () [' TCP ']

2-4. All_tcp () method
The All_tcp (self) method, which returns the port that the TCP protocol scans, such as:

>>> nm[' 192.168.209.121 '].all_tcp () [22,80]

2-5. TCP () method
The TCP (self, port) method, which returns information that scans the TCP protocol port (port), such as:

>>> nm[' 192.168.209.121 '].tcp (+) {' state ': ' Open ', ' reason ': ' Syn-ack ', ' name ': ' SSH '}

Third, code example

#!/usr/bin/python#coding=utf-8import sysimport nmap scan_row=[]input_data = raw_input (' please input hosts and port:  ')    #输入主机和端口scan_row  = input_ Data.split (" ")       #分割空格if  len (scan_row)!=2: #判断输入的字符长度不等于2      print  "input errors,example \" 192.168.1.0/24 80,443,22\ "   #输出   Input error     sys.exit (0) hosts=scan_row[0]     #接收用户输入的主机port =scan_row[1]      #接收用户输入的端口try:     nm = nmap. Portscanner ()      #创建端口扫描对象except  nmap. Portscannererror:    print (' Nmap not found ',  sys.exc_info () [0])      sys.exit (0) Except:    print ("Unexpected error:",  sys.exc_info () [0])     sys.exit (0) Try:    nm.scan (hosts=hosts, arguments='  -v -sS -p  ' +port)      #调用扫描方法, parameters specify scan host hosts, Nmap Scan command-line arguments argumentsexcept exception,e:    print  "Scan erro:" +str (e)      for host in nm.all_hosts ():     #遍历扫描主机      print ('----------------------------------------------------')     print (' host :  %s  (%s) '  %  (Host, nm[host].hostname ()))      #输出主机及主机名      print (' state : %s '  % nm[host].state ())      #输出主机状态 such as up and down     for proto in nm[host].all_protocols ():     #遍历扫描协议, such as TCP, Udp        print ('----------')          print (' protocol : %s '  % proto)      #输入协议名          lport&nbSp;= nm[host][proto].keys ()      #获取协议的所有扫描端口          lport.sort ()      #端口列表排序         for port  in lport:     #遍历端口及输出端口与状态              print (' port : %s\tstate : %s '  %  (port, nm[host][ proto][port][' state '))

The results are as follows:

Python learning-python-nmap for efficient port scanners