DNS 7 YXRRSET vs 8 NXRRSET
Both DNS 7 (YXRRSET) and 8 (NXRRSET) belong to the DNS Response Codes (RCODEs) category. 7 indicates that rR Set Exists when it should not. A resource record set exists that the update prerequisite says should not. Meanwhile, 8 means that rR Set that should exist does not. A required resource record set is missing from the zone.
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.
Beschreibung
RR Set that should exist does not. A required resource record set is missing from the zone.
Wann Sie es sehen
A DNS UPDATE prerequisite expected a certain RRset to exist (e.g., an MX record), but the zone does not contain it.
Wie man es behebt
Create the missing RRset in the zone before retrying the update, or change the prerequisite to not require its existence.
Wesentliche Unterschiede
DNS 7: RR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
DNS 8: RR Set that should exist does not. A required resource record set is missing from the zone.
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.
You encounter 8 when a DNS UPDATE prerequisite expected a certain RRset to exist (e.g., an MX record), but the zone does not contain it.
Wann welchen verwenden
For 7 (YXRRSET): Delete the conflicting RRset before retrying the update, or adjust your prerequisite conditions to match the actual zone state. For 8 (NXRRSET): Create the missing RRset in the zone before retrying the update, or change the prerequisite to not require its existence.