http://www.ietf.org/rfc/rfc1035.txt
RFC 1035 sec 4.1.1 里说
RCODE=3 (i.e. NXDOMAIN) 指的是
Name Error - Meaningful only for responses
from an authoritative name server.
那么如果一个 RCODE=3 的 DNS response 是从一个 non-authoritative
name server 返回的,又代表什么呢?
n**********l 发帖数: 271
2
RFC 1035 is updated by RFC 2308 Negative Caching of DNS Queries (DNS NCACHE)
V*********r 发帖数: 666
3
Forgot to say thank you!
【在 n**********l 的大作中提到】 : RFC 1035 is updated by RFC 2308 Negative Caching of DNS Queries (DNS NCACHE)