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9.11. Defining DNS Queries

To resolve hostnames within the DNS domain, a DNS client issues a query to the DNS name server. For some security contexts or for performance, it may be advisable to restrict what clients can query DNS records in the zone.
DNS queries can be configured when the zone is created or when it is modified by using the --allow-query option to set a list of clients which are allowed to issue queries.
For example:
[jsmith@server ~]$ ipa dnszone-mod --allow-query=;; example-zone
The default is any, which allows the zone to be queried by any client.