Port knocking for security

[ahz]

Please implement and integrate a GUI for port knocking. PK adds a simple but effective layer of security.

http://en.wikipedia.org/wiki/Port_knocking

I imagine the PK GUI to be able to use/add/edit/delete a list of port knocking "sequences." Each sequence has one title, one host name, and then an arbitrarily-long, ordered list of port numbers and protocols (TCP or UDP). So, a sequence might be:

Title: The office LAN
Hostname: office.example.com
#1: UDP 12898
#2: TCP 62181
#3: TCP 9999