Denvir
Ну перевод хоть бывыложил
А вооще я щас проги стал юзать
И нашел не плохую. Вот :
Port knocking describes a method of establishing a connection to a networked computer with no open port.
Ports are opened with the use of port knock sequences: a series of connection attempts to a series of closed and logged ports. A remote user possessing the authentication secret which generates knock sequences manipulates the server's firewall rules to render specific ports open. The manipulations are mediated by a server-side port knock daemon which monitors the firewall log file for correctly
formatted knock sequences. Once the desired ports are opened, the user can establish a connection and begin their session. Another knock sequence is used to close the port.
кому не лень переведите и зацените
Ну перевод хоть бывыложил

А вооще я щас проги стал юзать

Port knocking describes a method of establishing a connection to a networked computer with no open port.
Ports are opened with the use of port knock sequences: a series of connection attempts to a series of closed and logged ports. A remote user possessing the authentication secret which generates knock sequences manipulates the server's firewall rules to render specific ports open. The manipulations are mediated by a server-side port knock daemon which monitors the firewall log file for correctly
formatted knock sequences. Once the desired ports are opened, the user can establish a connection and begin their session. Another knock sequence is used to close the port.
кому не лень переведите и зацените
