python检测主机存活端口

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监测主机存活的端口

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#!/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)