On Mon, 2006-01-02 at 10:22, Maciej Żenczykowski wrote: > we could decide that bind is screwed anyway and DNS servers and cache's > are two fundamentally different animals and shouldn't be mixed anyway (ie. > no DNS server should ever be a cache and vice versa) Except that decision doen't make a lot of sense. > The reason why CNAME's are used for reverse delegation is because > administrators are lazy and BIND makes the proper non-CNAME using solution > tiresome to implement. It's a breeze with tinydns/djbdns (once you get to > know the program, but that's normal). If there is some advantage to delegating NS's for individual addresses instead of using CNAME's I think you forgot to mention it. CNAME's inherit the robustness of the referenced domain. If you do it by delegation, you'll have to provide multiple NS records for every address, and the admin of the delegating zone must track any changes. The point of using CNAMEs is for the delegating zone to not need to track anything about the real names - if they did they could just supply the correct PTR address in the first place. -- Les Mikesell lesmikesell at gmail.com