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To view/create/delete extensible attributes from Infoblox GUI: Administration → Extensible Attributes:
Example This applies to versions 4.6 or earlier. As an example of creating "Operating System" extensible attribute:
curl -k -u infoadmin:infopass -X POST 'https://172.16.42.113/wapi/v2.11/extensibleattributedef' -H "Content-Type: application/json" -d '{"name":"Operating System", "type":"STRING"}'
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