Importer and UI reports false duplicates about nictool HOT 2 OPEN

It could be argued that the second record is a typo but it can not be sad that it is a duplicate. Technically they are not equal.

Aye, true enough.

If this is a precaution to avoid possibly unwanted entries in a zone, this feature should be configurable.

They are almost certainly unwanted entries, and it often confuses humans who create such records and then can't figure out why their DNS record doesn't resolve. Also, duplicate records will cause some picky nameservers to reject loading a zone. NicTool is designed to avoid human induced errors in zones, therefore we don't allow users to add records that can cause their DNS to fail. Unless there's compelling reasons not to, we adhere tightly to the DNS RFCs.

from nictool.

Unless there's compelling reasons not to, we adhere tightly to the DNS RFCs.

From that point of view the validation would not work correctly. But I agree, this specific behavior made us realize as well that we have some unwanted entries in our bind zone files.

from nictool.