John Levine <[email protected]> wrote: > > On the other hand, there's at least one delegated TLD that has a DNAME > at the apex. It's been around for several years, it seems to work OK.
$ dig axfr . | sed -E '/^([a-z0-9-]+)[.][ ].*/!d;s//\1/' | sort -u | while read d; do dig +noall +answer DNAME $d.; done xn--kprw13d. 86400 IN DNAME xn--kpry57d. xn--mgba3a4f16a. 1440 IN DNAME xn--mgba3a4f16a.ir. Scanning the root zone is getting slow without concurrency :-) The above takes 3 minutes from a cold cache whereas adns takes 12 seconds (though you have to hack round its lack of support for DNAME). $ dig axfr . | sed -E '/^([a-z0-9-]+)[.][ ].*/!d;s//sladjfhkjlasdhf.\1./' | sort -u | adnshost --asynch --pipe --type cname | grep CNAME sladjfhkjlasdhf.xn--kprw13d CNAME sladjfhkjlasdhf.xn--kpry57d sladjfhkjlasdhf.xn--mgba3a4f16a CNAME sladjfhkjlasdhf.xn--mgba3a4f16a.ir Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ Trafalgar: Southwesterly 4 or 5, increasing 6 or 7 in northwest. Moderate or rough. Showers. Good, occasionally moderate. _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
