DNS 6 YXDOMAIN vs 10 NOTZONE
Both DNS 6 (YXDOMAIN) and 10 (NOTZONE) belong to the DNS Response Codes (RCODEs) category. 6 indicates that name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records. Meanwhile, 10 means that name not contained in zone. A name used in the Prerequisite or Update section is not within the zone denoted by the Zone section.
Description
Name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records.
When You See It
A DNS UPDATE prerequisite check failed because the domain name already exists when the update expected it to be absent.
How to Fix
Review your dynamic update prerequisites. If you expect to create a new name, remove the existing records first or change the prerequisite to allow existing names.
Description
Name not contained in zone. A name used in the Prerequisite or Update section is not within the zone denoted by the Zone section.
When You See It
Your dynamic update tried to modify a record that falls outside the zone specified in the update message (e.g., updating foo.example.org in the example.com zone).
How to Fix
Ensure all names in the update are within the target zone. Check for typos in the zone name or the records being updated.
Key Differences
DNS 6: Name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records.
DNS 10: Name not contained in zone. A name used in the Prerequisite or Update section is not within the zone denoted by the Zone section.
You encounter 6 when a DNS UPDATE prerequisite check failed because the domain name already exists when the update expected it to be absent.
You encounter 10 when your dynamic update tried to modify a record that falls outside the zone specified in the update message (e.g., updating foo.example.org in the example.com zone).
When to Use Which
For 6 (YXDOMAIN): Review your dynamic update prerequisites. If you expect to create a new name, remove the existing records first or change the prerequisite to allow existing names. For 10 (NOTZONE): Ensure all names in the update are within the target zone. Check for typos in the zone name or the records being updated.