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My network provider sent me a CSV export of records for my domain, which has several dozen server/site names. Some of the names are listed as "A Record" while others are "Host Address". When I use dig, both of those display as IN A records. The file also contains a mix of "CNAME Record" and "Host Alias" entries, both of which correspond to IN CNAME.

A previous question here says this indicates a DDI system. The results are indistinguishable from the DNS consumer's point of view (e.g. me, my users). So my question is, what is the difference from the DNS provider's point of view? Why should they choose one vs the other?

FWIW, I could not see a pattern behind which names had which type of record (e.g. site vs server, standalone vs shared, linux vs windows). For example, one of our bigger servers has multiple As and multiple HOSTs (plus some CNAMEs).

marked as duplicate by dawud, MadHatter, womble Jun 6 '16 at 0:29

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    I realized you cited this question, but your title and question are answered already; Why your provider chose that system is a question best asked of them – pete Jun 4 '16 at 15:54
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    DNS nerd here. Pete is correct, and without example DNS record names (unredacted) we can't tell you if there is any consistent pattern to why they're calling them something other than A records. There is a difference in terminology between a DNS records and hostnames, but there is no DNS record called a hostname or host address. – Andrew B Jun 4 '16 at 17:00
  • The benefit for the provider of "host" records (which are a concept, not an actual DNS record type) is the aggregation of information (A record, PTR record, MAC address etc) in a single object. You perhaps wouldn't use them for, say, a DNS round-robin. – Andy Jun 6 '16 at 14:38