Netcat/8/en

Merely Passing With Mknod

Mknod creates special files or block type character. The following command, run on the relay machine used to create a special file First-In-First-Out (FIFO) and use it with Netcat to transit data.

$ mknod foo p
$ nc -l -p 1234 0<foo | nc 12.345.67.89 4567 1>foo

Persistent Relay

The two previously seen relays are non-persistent relay. This means that if the closing of the connection by the hacker (by CTRL + C), the process of the relay is removed. It is possible to create a relay persist in Windows, using the parameter -L (capital L).