python3实现telnet查看IP地址段端口开放情况

1、python3实现IP地址段打印

#!/usr/bin/python3
#-*- coding:utf-8 -*-

#编写环境  windows 7 x64 + Python3.7.0
#python3实现IP地址段打印

#ip转换方法
def ip2num(ip):
    ip=[int(x) for x in ip.split('.')]
    return ip[0] <<24 | ip[1]<<16 | ip[2]<<8 |ip[3]
def num2ip(num):
    return '%s.%s.%s.%s' %( (num & 0xff000000) >>24,
                            (num & 0x00ff0000) >>16,
                            (num & 0x0000ff00) >>8,
                            num & 0x000000ff )

#把输入的ip范围组合成一个list形式
def get_ip(ip):
    start,end = [ip2num(x) for x in ip.split('-') ]
    return [ num2ip(num) for num in range(start,end+1) if num & 0xff ]
    
    
if __name__ == '__main__':
    iplist = get_ip('10.10.10.1-10.10.10.10')
    print(iplist)

2、python3多线程实现telnet查看IP地址段端口开放情况

#!/usr/bin/python3
#-*- coding:utf-8 -*-

#编写环境  windows 7 x64 + Python3.7.0
#python3实现telnet查看IP地址段端口开放情况

import telnetlib
import threading
import time

#ip转换方法
def ip2num(ip):
    ip=[int(x) for x in ip.split('.')]
    return ip[0] <<24 | ip[1]<<16 | ip[2]<<8 |ip[3]
def num2ip(num):
    return '%s.%s.%s.%s' %( (num & 0xff000000) >>24,
                            (num & 0x00ff0000) >>16,
                            (num & 0x0000ff00) >>8,
                            num & 0x000000ff )

#把输入的ip范围组合成一个list形式
def get_ip(ip):
    start,end = [ip2num(x) for x in ip.split('-') ]
    return [ num2ip(num) for num in range(start,end+1) if num & 0xff ]
    

def scan(ip,port):
    
    try:
        #server = telnetlib.Telnet(ip, port, timeout=10)
        server = telnetlib.Telnet() # 创建一个Telnet对象
        
        server.open(ip,port)         # 利用Telnet对象的open方法来创建TCP连接测试端口是否开放
        
        #a表示以追加的形式将端口开放的ip列出来
        file = open('thefile.txt', 'a')
        file.write(ip+" "+port+"
")
        file.close()
        print('{0} port {1} is open'.format(ip, port))
    except Exception as e:
        print('{0} port {1} is off'.format(ip, port))
        print(e)

 
if __name__ == '__main__':
    iplist = get_ip('10.10.10.1-10.10.10.10')
    print(iplist)
    
    starttime = time.time()
    portlist=['22','80']
    threads = []
    for port in portlist:
        for ip in iplist:
            t = threading.Thread(target=scan,args=(ip,port))
            t.start()
            threads.append(t)
    
    for t in threads:
        t.join()
    endtime = time.time()
    print('一共运行了{0}秒'.format((endtime-starttime)))

3、python3协程实现telnet查看IP地址段端口开放情况

#!/usr/bin/python3
#-*- coding:utf-8 -*-

#编写环境  windows 7 x64 + Python3.7.0
#python3实现telnet查看IP地址段端口开放情况

import telnetlib
import gevent
import time

#ip转换方法
def ip2num(ip):
    ip=[int(x) for x in ip.split('.')]
    return ip[0] <<24 | ip[1]<<16 | ip[2]<<8 |ip[3]
def num2ip(num):
    return '%s.%s.%s.%s' %( (num & 0xff000000) >>24,
                            (num & 0x00ff0000) >>16,
                            (num & 0x0000ff00) >>8,
                            num & 0x000000ff )

#把输入的ip范围组合成一个list形式
def get_ip(ip):
    start,end = [ip2num(x) for x in ip.split('-') ]
    return [ num2ip(num) for num in range(start,end+1) if num & 0xff ]
    
    
def scan(ip,port):
    
    try:
        #server = telnetlib.Telnet(ip, port, timeout=10)
        server = telnetlib.Telnet() # 创建一个Telnet对象
        
        server.open(ip,port)         # 利用Telnet对象的open方法来创建TCP连接测试端口是否开放
        
        #a表示以追加的形式将端口开放的ip列出来
        file = open('thefile.txt', 'a')
        file.write(ip+" "+port+"
")
        file.close()
        print('{0} port {1} is open'.format(ip, port))
    except Exception as e:
        print('{0} port {1} is off'.format(ip, port))
        print(e)
    
    
if __name__ == '__main__':
    iplist = get_ip('10.10.10.1-10.10.10.10')
    print(iplist)
    
    portlist=['22','80']
    starttime = time.time()
    
    #单线程模式
    '''
    for port in portlist:
        for ip in iplist:
            print(scan(ip,port))
    '''
    
    #协程模式，多并发
    #下面这句的意思就是循环portlist列表里面的port,循环iplist列表里面的ip，全部加到协程(gevent)里面，一起并发启动执行
    threads = [gevent.spawn(scan, ip,port) for ip in iplist for port in portlist]
    gevent.joinall(threads)
    
    endtime = time.time()
    print('一共运行了{0}秒'.format((endtime-starttime)))

4、参考

python批量Telnet远程主机查看端口开放情况

https://blog.51cto.com/mapengfei/1926039?cid=695986

python实现指定ip端口扫描

https://blog.csdn.net/qq_38228830/article/details/81432715