Unfortunately, the blog post linked to is now a 404. Here's an archived version: https://web.archive.org/web/20180202204836/http://blog.sacaluta.com/2011/12/dn

Unfortunately, the blog post linked to is now a 404. Here's an archived version: https://web.archive.org/web/20180202204836/http://blog.sacaluta.com/2011/12/dns-domain-names-253-or-255-bytesoctets.html https://web.archive.org/web/20180202204836/http://blog.sacal...