In a past piece of research, we explored the issue of nameserver domains expiring allowing us to take over full control of a target domain. In that example we took over the domain name maris.int by buying an expired domain name which was authoritative for the domain. This previous example happened to have two broken nameservers, one being misconfigured and the other being an expired domain name. Due to this combination of issues the domain was totally inaccessible (until I bought the domain a...
