What exactly do you mean by "all DNS domains"? If you want all the DNS zones that your Infoblox system manages, do a GET operation for zone_auth objects (requires at least WAPI version 1.1):
curl --tlsv1 --insecure --user 'admin:infoblox' 'https://gm.example.com/wapi/v1.1/zone_auth'
The fqdn field in the returned objects will contain the fully-qualified domain names of forward-mapping zones (e.g., "example.com") or for reverse-mapping zones the associated network in CIDR format (e.g., "192.168.0.0/24").
If you want all the domain names your Infoblox system has defined with the various zones, then do multiple GET operations to return the host records:
curl --tlsv1 --insecure --user 'admin:infoblox' 'https://gm.example.com/wapi/v1.0/record:host'
and the A records:
curl --tlsv1 --insecure --user 'admin:infoblox' 'https://gm.example.com/wapi/v1.0/record:a'
In the returned objects the name field will contain the fully-qualified domain name.
