On Sat, 2004-08-14 at 19:26 +0300, Pekka Savola wrote: > On Sat, 14 Aug 2004, Daniel Roesen wrote: > > Ideally, glibc should do: > > > > - nibble format in ip6.arpa > > if that doesn't succeed: > > - nibble format in ip6.int > > Or even just forgo ip6.int altogether. If ip6.int doesn't work > properly (causing delays), and isn't needed anymore, we shouldn't even > bother trying it. > > But I don't have strong objections either way, as long as ip6.arpa is > tried first. ip6.arpa _is_ tried first, and when we get NXDomain we fall back to ip6.int. Some seconds later, ip6.arpa eventually fails too.. 12:47:16.775500 IP 192.168.0.4.1035 > 192.168.0.1.domain: 9506+ PTR? 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.2.a.9.2.9.5.d.2.0.0.2.ip6.arpa. (90) 12:47:16.775879 IP 192.168.0.1.domain > 192.168.0.4.1035: 9506 NXDomain 0/1/0 (151) 12:47:16.776241 IP 192.168.0.4.1035 > 192.168.0.1.domain: 9507+ PTR? 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.2.a.9.2.9.5.d.2.0.0.2.ip6.int. (89) 12:47:21.776076 IP 192.168.0.4.1035 > 192.168.0.1.domain: 9507+ PTR? 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.2.a.9.2.9.5.d.2.0.0.2.ip6.int. (89) 12:47:24.310993 IP 192.168.0.1.domain > 192.168.0.4.1035: 9507 ServFail 0/0/0 (89) 12:47:24.311068 IP 192.168.0.1.domain > 192.168.0.4.1035: 9507 ServFail 0/0/0 (89) Since ip6.int is has been deprecated for three years and since it actually appears to be _dead_ I suspect we gain little by disabling its use. We could, perhaps, have an option in resolv.conf to _enable_ the fallback to ip6.int, rather than the current option which _disables_ such? -- dwmw2
