Here is a rebuttal to the "why not" argument: http://www.cipherdyne.org/blog/2013/10/port-knocking-why-you-should-give-it-another-look.html http://www.cipherdy

Here is a rebuttal to the "why not" argument: http://www.cipherdyne.org/blog/2013/10/port-knocking-why-you-should-give-it-another-look.html http://www.cipherdyne.org/blog/2013/10/port-knocking-why-you...