linux tcp 被关闭

import socket

server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.bind(('0.0.0.0', 12345))
server_socket.listen(5)

while True:
    client_socket, addr = server_socket.accept()
    print(f"Connection from {addr}")
    try:
        while True:
            data = client_socket.recv(1024)
            if not data:
                break
            client_socket.sendall(data)
    except ConnectionResetError:
        print(f"Connection from {addr} was reset.")
    finally:
        client_socket.close()

import socket

client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client_socket.connect(('服务器IP地址', 12345))

try:
    while True:
        message = input("Enter message to send: ")
        client_socket.sendall(message.encode())
        response = client_socket.recv(1024)
        print(f"Received: {response.decode()}")
except KeyboardInterrupt:
    pass
finally:
    client_socket.close()