a simple implementation of Port Knocking
Make sure Go compiler is installed on your machine
git clone https://github.com/pooladkhay/knocklock.git
cd knocklock
go run .
Program wil start listening on four ports which are hard-coded.
Expected knocking sequence is:
2002, 6006, 3003, 1001
Open a new terminal window and try connecting using ssh:
ssh [email protected] -p 2002
or netcat:
nc 127.0.0.1 2002
Try different sequences and see the results.
I have also added some comments to explain the code inside main.go