DNS 7 YXRRSET vs 11 DSOTYPENI
Both DNS 7 (YXRRSET) and 11 (DSOTYPENI) 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, 11 means that dSO-TYPE Not Implemented. The DNS Stateful Operations (DSO) type in the request is not supported by the server.
الوصف
RR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
متى تراه
A DNS UPDATE failed because a specific RRset (e.g., an A record) already exists when the prerequisite required it to be absent.
كيفية الإصلاح
Delete the conflicting RRset before retrying the update, or adjust your prerequisite conditions to match the actual zone state.
الوصف
DSO-TYPE Not Implemented. The DNS Stateful Operations (DSO) type in the request is not supported by the server.
متى تراه
Your client attempted a DSO operation (like a keepalive or push subscription) that the server does not recognize or has not implemented.
كيفية الإصلاح
Verify that both client and server support the same DSO-TYPE. Upgrade the server software or fall back to traditional DNS queries.
الفروق الرئيسية
DNS 7: RR Set Exists when it should not. A resource record set exists that the update prerequisite says should not.
DNS 11: DSO-TYPE Not Implemented. The DNS Stateful Operations (DSO) type in the request is not supported by the server.
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 11 when your client attempted a DSO operation (like a keepalive or push subscription) that the server does not recognize or has not implemented.
متى تستخدم أيًا منهما
For 7 (YXRRSET): Delete the conflicting RRset before retrying the update, or adjust your prerequisite conditions to match the actual zone state. For 11 (DSOTYPENI): Verify that both client and server support the same DSO-TYPE. Upgrade the server software or fall back to traditional DNS queries.