nc [options] [target host] [port] Or with Ncat:
nc -l -p 443
ncat -l -p 8080 --keep-open --sh-exec "type index.html" Then visit http://localhost:8080 in your browser. This is the most famous (and dangerous) use case. Use only on machines you own or have explicit permission to test. netcat windows
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:
If you’ve spent any time in Linux or macOS penetration testing or network debugging, you’ve likely heard the legendary praise for Netcat ( nc ). Often called the "Swiss Army knife of networking," it allows you to read, write, and relay data across network connections using the TCP or UDP protocol. nc [options] [target host] [port] Or with Ncat:
nc -h 1. Test if a Port is Open (Port Scanning) Unlike Linux, Windows doesn’t have a native nc -zv . But you can do this:
nc -l -p 4444 On Machine B (Client):
nc -l -p 5555 > received_file.txt On Client: