tcp服务器

#TCP服务器端

import socket



#server=socket.socket(socket.AF_INET,socket.SOCK_STREAM)

server=socket.socket()

server.bind(("localhost",6666))

print("服务器已启动，等待连接")

server.listen(1)

conn,add=server.accept()



while 1:

    recv=conn.recv(1024).decode("utf-8")

    print("来自客户端的数据:",recv)

    if recv=="N":

        break

    sendMes=input("发送数据:")

    conn.send(sendMes.encode("utf-8"))

    if sendMes=="N":

        break

import socket

client= socket.socket()

client.connect(("127.0.0.1",6666))



while 1:

    sendMes=input("发送数据到服务器:")

    client.send(sendMes.encode("utf-8"))

    if sendMes=="N":

        break

    recv=client.recv(1024).decode("utf-8")

    print("来自服务端的数据:",recv)

    if recv=="N":

        break

UDP服务器

#UDP协议

import socket



server=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)

server.bind(("localhost",8888))

while 1:

    data,addr=server.recvfrom(1024)

    data=data.decode("utf-8")

    print("收到数据:",data)

    if data=="N":

        break

    send_msg=input("请输入数据:")

    server.sendto(send_msg.encode("utf-8"),addr)

    if send_msg=="N":

        break

UDP客户端

#UDP协议

import socket



server=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)

#server.bind(("localhost",8888))

while 1:

    send_msg=input("请输入数据:")

    server.sendto(send_msg.encode("utf-8"),("localhost",8888))

    if send_msg=="N":

        break

    data,addr=server.recvfrom(1024)

    data = data.decode("utf-8")

    print("收到数据:",data)

    if data=="N":

        break

抓包

from scapy.all import *



print(conf.ifaces)

#lists=[]

a=PcapWriter("cap2.cap",append=True)

def callback(p):

#    lists.append(p)

#    a.write(p)

    wrpcap("cap3.cap",p,append=True)

sniff(filter="",

      iface="Intel(R) Wi-Fi 6 AX200 160MHz",

      prn=callback,

      count=30

      )

# wrpcap("cap1.cap",lists)