Looks like the libc resolver does not support the DNAME RR. Does anybody know if it's being implemented somewhere?
Sep 5 19:00:42 attila telnet: gethostby*.getanswer: asked for "e.7.0.b.3.c.e.f.f.f.b.2.0.0.a.0.d.0.0.0.1.0.0.0.8.f.4.0.1.0.0.2.ip6.int IN PTR", got type "39" ;; ANSWER SECTION: 8.f.4.0.1.0.0.2.ip6.int. 7200 IN DNAME 8.f.4.0.1.0.0.2.ip6.arpa. e.7.0.b.3.c.e.f.f.f.b.2.0.0.a.0.d.0.0.0.1.0.0.0.8.f.4.0.1.0.0.2.ip6.int. 0 IN CNAME e.7.0.b.3.c.e.f.f.f.b.2.0.0.a.0.d.0.0.0.1.0.0.0.8.f.4.0.1.0.0.2.ip6.arpa. e.7.0.b.3.c.e.f.f.f.b.2.0.0.a.0.d.0.0.0.1.0.0.0.8.f.4.0.1.0.0.2.ip6.arpa. 7200 IN PTR isrv4.isc.org. -- ciao, Marco

