Simple data transfer via netcat
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Some simple commands to transfer text or files via netcat from one host to another using netcat over TCP (in plaintext).
Recipient
The recipient listens on a port for TCP traffic.
# -l Listen for incoming connections
# -p <listen port> The port to listen on
nc -l -p <listen port>Sender
The sender sends a message to the recipient via TCP and closing the connection once the message is completed.
# <recipient-ip> The IP address of the recipient
# <recipient-port> The port the recipient is listening on
# -q <seconds> Optional, the number of seconds to wait before closing the connection after EOF.
# Should be > 0
nc <recipient address> <recipient port> -q <seconds>Examples
Sending a simple input
# Recipient
nc -l -p 7777
# Sender
echo "Hello World" | nc -u 127.0.0.1 7777 -q 1Sending a file
# Recipient
nc -l -p 7777 > out.file
# Sender
nc 127.0.0.1 7777 -q 1 < in.file