[dns-operations] Beware of the cosmic rays

[Stephane Bortzmeyer]

http://dinaburg.org/bitsquatting.html

Bitsquatting refers to the registration of a domain names one bit
different than a popular domain. [...] Bitsquatting frequently
resolved domain names makes it possible to exploit computer hardware
errors via DNS. [...] The causes of these errors range from
manufacturing defects to environmental factors such as cosmic rays and
overheating.