Help Center> Domain Name Service> FAQs> DNS Overview> What Are the Private DNS Servers Provided by the HUAWEI CLOUD DNS Service?
Updated at: 2022-04-11 GMT+08:00

What Are the Private DNS Servers Provided by the HUAWEI CLOUD DNS Service?

Private DNS servers are used in VPCs to:

  • Resolve private domain names and internal domain names of cloud services.
  • Forward domain name requests to public DNS servers.

You can use private DNS servers provided by the DNS service to:

  • Resolve private domain names used in VPCs.
  • Access cloud services such as OBS and SMN.
  • Allow ECSs without EIPs to access the Internet.

Table 1 lists private DNS server addresses provided by the DNS service in different regions.

  • Set the DNS server addresses of the VPC subnet where the ECS resides to the private DNS server addresses of each region, as shown in Table 1.
  • If you set DNS Server Address to external DNS server addresses, traffic will be routed to public IP addresses when ECS accesses other cloud services, which may incur additional traffic fees.
  • When an ECS accesses a third-party domain name on the Internet, the private DNS server functions as a recursive DNS server, and the authoritative DNS server returns the final resolution result. Whether the resolution result is reliable or optimal depends on uncontrollable factors such as third-party authoritative DNS. It is recommended that ECSs access cloud services using their private domain names.
Table 1 Private DNS server addresses

Region

Private DNS Server Address

CN North-Beijing1

100.125.1.250

100.125.21.250

CN North-Beijing4

100.125.1.250

100.125.129.250

CN South-Guangzhou

100.125.1.250

100.125.136.29

CN East-Shanghai1

100.125.1.250

100.125.64.250

CN East-Shanghai2

100.125.17.29

100.125.135.29

CN-Hong Kong

100.125.1.250

100.125.3.250

AP-Bangkok

100.125.1.250

100.125.1.251

AP-Singapore

100.125.1.250

100.125.128.250

AF-Johannesburg

100.125.1.250

100.125.1.14

LA-Santiago

100.125.1.250

100.125.0.250

LA-Sao Paulo1

100.125.1.22

100.125.1.90

LA-Mexico City1

100.125.1.22

100.125.1.90

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