DNS record used for reverse lookups, resolving an IP address back to a name. Private DNS zone autoregistration does not create these.
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Each book explains PTR record in context, with comparison tables and the common traps.
Terms in this definition
- DNS
The system that turns names into addresses. In Azure, private endpoints depend on private DNS zones, which are queried through 168.63.129.16.
- Private DNS zone
A zone in Azure DNS for private records (A records, for example), linked to VNets. Because only 168.63.129.16 resolves it, clients on-premises must go through a DNS forwarder or Azure DNS Private Resolver.
- Autoregistration
When enabled on a private DNS zone's virtual network link, VMs in that VNet get A records created automatically, kept in step as their IPs change and removed when they are deleted. A VNet may autoregister into only one private zone.
- CRUD
Shorthand for create, read, update and delete, the four basic things you do with data. Data-plane roles in Azure Cosmos DB, for instance, authorise those operations on items.