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DateProviderScoreSummary
31 Aug 2026, 11:19 AMHacker News5.5 Transfer files over an Ethernet patch cable

A practical walkthrough shows how to transfer large files between two Linux machines using a plain Ethernet patch cable, IPv6 link-local addresses, and socat, hitting ~900 Mbits/s (6.7 GB/min). The author compares this favorably against cloud storage (double transfer, throttling), WiFi (unreliable speeds), and USB removable storage (host/device limitation, cable quality issues), and notes Linux now supports similar direct transfer over USB-C/Thunderbolt via /dev/tbstreamX.

Why: If you need to move a 10+ GB file between two machines a few meters apart, a single Ethernet patch cable with two ip commands and socat is faster, cheaper, and more reliable than cloud upload/download or USB drives. Worth keeping in your toolkit for offline data transfers or when bandwidth is constrained.

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