Error. Authoritative answer for host not found

  • event
  • update
  • access_time 1 min read

Summary: Description of and steps to resolve the issue when a backup fails with error 'Authoritative answer for host not found'.

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Error message

bsock.c:237 gethostbyname() for host "XXXX" failed: ERR=Authoritative answer for host not found.

Error description

This error indicates that the IP address of the client (see in ClientsEdit) is not resolvable. By default, the Cloud Failover Appliance uses the client name as the address, and this field needs to be adjusted.

Steps to resolve

This error can be resolved in two ways:

  • Verify that the host name is resolvable via DNS, and make adjustments as needed.

  • Change the address to the IP address rather than the host name.

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