nc 192.168.1.A 4444 Now type anything in either window – the other sees it instantly. Send a file from Windows Client to Windows Server:
Test-NetConnection google.com -Port 80 But for full data transfer and listening, Netcat still wins. Netcat is a double-edged sword. On one hand, it’s invaluable for debugging firewalls, testing services, and automating network tasks. On the other, it’s the go-to tool for establishing backdoors. netcat windows
nc -l -p 4444 On Machine B (Client):
ncat [options] [target host] [port] Check your version: nc 192