A classic is dd over nc https://www.ndchost.com/wiki/server-administration/netcat-over-ssh https://www.ndchost.com/wiki/server-administration/netcat-ov... The

A classic is dd over nc https://www.ndchost.com/wiki/server-administration/netcat-over-ssh https://www.ndchost.com/wiki/server-administration/netcat-ov... The main trick is to do it over UDP to get speed like Aspera: https://www.ibm.com/products/aspera https://www.ibm.com/products/aspera