DNS 3 NXDOMAIN vs 7 YXRRSET
Both DNS 3 (NXDOMAIN) and 7 (YXRRSET) belong to the DNS Response Codes (RCODEs) category. 3 indicates that non-Existent Domain. The queried domain name does not exist in the DNS namespace. Meanwhile, 7 means that rR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
Beschreibung
Non-Existent Domain. The queried domain name does not exist in the DNS namespace.
Wann Sie es sehen
The domain has no DNS records at all — either it was never registered, has expired, or you have a typo in the hostname.
Wie man es behebt
Double-check the domain spelling. If you own the domain, verify your registrar settings and ensure the nameservers are correctly delegated.
Beschreibung
RR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
Wann Sie es sehen
A DNS UPDATE failed because a specific RRset (e.g., an A record) already exists when the prerequisite required it to be absent.
Wie man es behebt
Delete the conflicting RRset before retrying the update, or adjust your prerequisite conditions to match the actual zone state.
Wesentliche Unterschiede
DNS 3: Non-Existent Domain. The queried domain name does not exist in the DNS namespace.
DNS 7: RR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
You encounter 3 when the domain has no DNS records at all — either it was never registered, has expired, or you have a typo in the hostname.
You encounter 7 when a DNS UPDATE failed because a specific RRset (e.g., an A record) already exists when the prerequisite required it to be absent.
Wann welchen verwenden
For 3 (NXDOMAIN): Double-check the domain spelling. If you own the domain, verify your registrar settings and ensure the nameservers are correctly delegated. For 7 (YXRRSET): Delete the conflicting RRset before retrying the update, or adjust your prerequisite conditions to match the actual zone state.