You can enforce a naming policy for the hostnames of A, AAAA, Host, MX, NS, and bulk host records based on
user-defined or default patterns. For MX and NS records, the hostname restrictions apply to the text in the RDATA field (right-hand side) of the resource record name.
Records that you created before you enabled the hostname checking policy need not comply with the hostname restriction that you specify.
You can select one of three preconfigured policies or define your own host naming policy with a POSIX regular expression. The policies Infoblox provides implement standard host naming restrictions according to RFC 952, DOD Internet Host Table Specification, and RFC 1123, Requirements for Internet Hosts -- Application and Support.
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You can define your own hostname restriction policy at the Grid level only. At the member and zone levels, you can select a predefined policy or a policy that was defined at the Grid level. The appliance supports IDNs for DNS zones and resource records. For more information about IDNs, see Managing Internationalized Domain Names. You can use UTF-8 characters when you configure your own hostname checking policy.
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