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The Storage nodes may need to resolve names for outside resources, such as Elasticsearch or Syslog. Configure the DNS server on the Platform Server to communicate with outside domains to perform this.
Option 1:
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Forwarding
A Slave/Backup DNS zone is a read-only copy of the DNS records; it receives updates from the Master zone of the DNS server.
If you have no DNS master/slave relationships configured, you can do simple forwarding by having the domain managed by the Platform server forward all lookups to outside domains:
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