* https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=825394#221
* https://news.ycombinator.com/item?id=11797075
* https://news.ycombinator.com/item?id=11782364
systemd and Netflix:
* https://news.ycombinator.com/item?id=14837110
* https://www.theregister.co.uk/2017/07/24/underscore_domain_n...