Shane Kerr <shane@time-travellers.org> wrote:
DNAME could be used, but it would involve an extra lookup for resolvers, right?
Yes, and it would also require a change of name for the delegated zones which I suspect would be a bigger problem in practice :-) There's some discussion and examples of using DNAME for reverse DNS in https://tools.ietf.org/html/draft-ietf-dnsop-rfc2317bis (which expired mainly because I wasn't sure how to resolve the open questions, and I lacked feedback) Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ - I xn--zr8h punycode Thames, Dover, Wight, Portland, Plymouth: West or southwest 5 to 7, occasionally gale 8 at first. Moderate or rough. Rain at first, then showers. Moderate or good, occasionally poor at first.