How to Build a Working Digital Computer Out of Paperclips (Evil Mad Scientist) — from a 1967 popular science book showing how to build everything from parts that you might find at a hardware store: items like paper clips, little light bulbs, thread spools, wire, screws, and switches (that can optionally be made from paper clips).
Moloch (Github) — an open source, large scale IPv4 packet capturing (PCAP), indexing and database system with a simple web GUI.
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