python检测主机存活端口

监测主机存活的端口

#!/usr/bin/env python
# coding-utf8
import argparse
import socket
import sys

#author: wolf_ribble

def scan_ports(host,start_port,end_port):
    """Scan remote hosts"""
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    except socket.error,error_msg:
        print ‘Socket creation failed.Error code:‘ + str(error_msg[0]) + ‘Erroe message:‘ + error_msg[1]
        sys.exit()

    try:
        remote_ip = socket.gethostbyname(host)
    except socket.error,error_msg:
        print error_msg
        sys.exit()

    end_port +=1
    for port in range(start_port,end_port):
        try:
            sock.connect((remote_ip,port))
            print ‘Port‘ + str(port) + ‘is ipen‘

            sock.close()
            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        except socket.error,error_msg:
            #print error_msg
            pass

if __name__ == ‘__main__‘:
    parser = argparse.ArgumentParser(description=‘remote port scaner‘)
    parser.add_argument(‘--host‘,action="store",dest="host",default=‘www.wealink.com‘)
    parser.add_argument(‘--start-port‘,action="store",dest="start_port",default=‘1‘,type=int)
    parser.add_argument(‘--end-port‘,action="store",dest="end_port",default=‘100‘,type=int)
    given_args = parser.parse_args()
    host, start_port ,end_start = given_args.host , given_args.start_port,given_args.end_port

    scan_ports(host,start_port,end_start)