Single Packet Authorisation Using FWKNOP Sep 23, 2008, 18 :31 UTC (0 Talkback[s]) (2571 reads) (Other stories by tel0s)
"The developers of this system decided that it still was not secure enough, as an attacker logging connections to the server could detect the port knocking sequence, and get access anyway, so they developed a wonderful package called FWKNOP, which uses a slightly different method of port knocking, called Single Packet Authorisation."
