Hybrid Cloud Resolution

What is hybrid cloud resolution?

DNS Resolver answers DNS queries to and from your on-premises data center after your data center is connected to the cloud over Direct Connect or VPN.

Generally, on-premises data centers can access cloud resources over a Direct Connect or VPN connection. However, for security purposes, on-premises servers are not allowed to access the DNS service on the cloud directly. If your on-premises servers need to access private domain names used within VPCs, or your cloud servers use Huawei Cloud private DNS to access an on-premises domain name, you need to set up DNS on your cloud servers for forwarding DNS queries between the cloud DNS and on-premises DNS. This increases management and maintenance costs and causes reliability risks.

With Huawei Cloud DNS Resolver, on-premises servers and cloud servers can easily communicate with each other in hybrid cloud scenarios.

Figure 1 Hybrid cloud DNS resolution

DNS Resolver is now available in CN North-Ulanqab1, CN Southwest-Guiyang1, AP-Bangkok, AP-Singapore, AP-Jakarta, AP-Manila, CN-Hong Kong, AF-Cairo, LA-Sao Paulo1, TR-Istanbul, AF-Johannesburg, ME-Riyadh, and LA-Mexico City2.

Video

This video introduces the main functions of Huawei Cloud DNS Resolver and how to use DNS Resolver to set up hybrid cloud DNS.

Where to Use

• Access to a Service Domain Name on the Cloud from an On-premises Server

  To enable access, you need to create an inbound endpoint and configure forwarding rules on the on-premises DNS servers to forward the DNS queries for the cloud service domain name to the IP addresses specified in the inbound endpoint.

• Access to an On-Premises Service Domain Name from a Cloud Server

  To enable access, you need to create an outbound endpoint and configure endpoint rules to specify the on-premises domain name to be accessed and the IP addresses of the on-premises DNS servers. Huawei Cloud private DNS then forwards the DNS queries for the on-premises domain name to the on-premises DNS servers based on the endpoint rules.

Product Advantages

• Simple networking

  You do not need to worry about conflicts with IP addresses starting with 100 because DNS Resolver responds recursively to DNS queries within VPCs.

• Conditional forwarding

  DNS queries for particular domain names and for top-level domains are forwarded to specific DNS servers for resolution.

Functions

Helpful Links

For details about how to configure DNS Resolver to enable communication between on-premises servers and the cloud, see Using DNS Resolver to Enable Communication Between On-premises Servers and the Cloud.