knock... knock...

Yet another port knock client.

Installing

$ pip install knocker

Running

$ knocker your.server.domain 8001 8002 8003
knock... knock...

Getting help

$ knocker -h           
usage: knocker [-h] [-d DELAY] host ports [ports ...]

Knock host and port using tcp connection

positional arguments:
  host                  Hostname or IP address of the host
  ports                 Ports to knock

optional arguments:
  -h, --help            show this help message and exit
  -d DELAY, --delay DELAY
                        Milliseconds between each knock

Example server

The example_server.py is just a socket server that listen 3 different ports and print a message after receive a ping on it.

$ python example_server.py
Listening ports: 49485 38749 42846