Re:US passes emergency waiver over fuel pipeline cyber-attack
by mikewarot on Tuesday May 11, 2021 @11:40AM
(#27119448)
A data diode doesn't have to be just a one way ethernet port, it can include a pair of dedicated servers.
The inside (isolated) server would poll everything, store it into a buffer, and send that buffer (plus error correction) out through an optoisolator to other server.
The outside (internet facing) server would then keep up with the ring buffer, and serve requests, and do any outbound push of data via any protocol required.
A system to do this could be made with a pair of raspberry pi computers and a little bit of discrete components for less than $150 in hardware costs.
The inside (isolated) server would poll everything, store it into a buffer, and send that buffer (plus error correction) out through an optoisolator to other server.
The outside (internet facing) server would then keep up with the ring buffer, and serve requests, and do any outbound push of data via any protocol required.
A system to do this could be made with a pair of raspberry pi computers and a little bit of discrete components for less than $150 in hardware costs.