使用Scapy端口扫描程序查找侦听端口的with服务器

from scapy.all import *

def port_scan(target_ip, start_port, end_port):
    open_ports = []
    for port in range(start_port, end_port+1):
        # 构建TCP SYN数据包
        packet = IP(dst=target_ip) / TCP(dport=port, flags='S')
        response = sr1(packet, timeout=1, verbose=0)
        
        if response and response.haslayer(TCP) and response.getlayer(TCP).flags == 0x12:
            # 收到TCP SYN/ACK响应，端口开放
            open_ports.append(port)
    
    return open_ports

target_ip = '目标主机IP'
start_port = 1
end_port = 100

open_ports = port_scan(target_ip, start_port, end_port)
print("开放的端口：", open_ports)