Reverse telnet

Reverse telnet is a specialized application of telnet, where the server side of the connection reads and writes data to a computer terminal line, rather than providing a command shell to the host device. Typically, reverse telnet is implemented on an embedded device, which has an Ethernet network interface and serial port(s). Through the use of reverse telnet on such a device, IP-networked users can use telnet to access serially-connected devices.

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