Talk:POP before SMTP

Latest comment: 13 years ago by Damian Yerrick in topic Compare to port knocking

Compare to port knocking

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How is this different from port knocking? In each, the user of a service connects on one port and then is authorized to connect on another port within a short time frame. --Damian Yerrick (talk | stalk) 16:07, 29 June 2011 (UTC)Reply