cryptcat — Cryptcat is netcat with encryption capabilities. More information: <https://manned.org/cryptcat>.

[l]isten on a specified [p]ort and print any data received

cryptcat -k {{password}} -l -p {{port}}

Connect to a certain port

cryptcat -k {{password}} {{ip_address}} {{port}}

Specify the timeout ([w])

cryptcat -k {{password}} -w {{timeout_in_seconds}} {{ip_address}} {{port}}

Scan ([z]) the open ports of a specified host

cryptcat -v -z {{ip_address}} {{port}}

Act as proxy and forward data from a local TCP port to the given remote host

cryptcat -k {{password}} -l -p {{local_port}} | cryptcat -k {{password}} {{hostname}} {{remote_port}}