32C3 2015 eng deu How the Great Firewall discovers hidden circumvention servers
▶32C3 2015 eng deu How the Great Firewall discovers hidden circumvention servers — a 2015 All Hacking Cons (community re-uploads) security conference talk on network (59:24 min). Watch the full video, indexed free on the Breach Arc Archive.
▶ Watch video on YouTube