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- Infoblox DNS servers support defining a naming policy for the hostnames of A, AAAA, MX, and NS records based on user-defined or default patterns. For information, see Specifying Hostname Policies. The hostname policy applies only when records are created from Grid Manager. Resource records that originate from the Microsoft server are synchronized to the Grid member even if they do not comply with the hostname policy of the Grid member. The policy is enforced only if you edit the resource record from Grid manager.
- When you create an A or AAAA resource record on the NIOS appliance with the option to automatically create the corresponding PTR record, Grid Manager uses the deepest reverse zone that can hold the record. For example, a Grid has the following reverse zones: 10.in-addr.arpa, 0.10.in-addr.arpa, and 0.0.10.in-addr.arpa. When you create the A record www A with the IP address 10.0.0.1, Grid Manager creates a PTR record in the zone 0.0.10.in-addr.arpa. If the deepest zone does not allow the creation of the PTR record, Grid Manager creates the A record, but not the PTR record, and displays a warning.
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| title | Note |
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Note that if the Enable PTR record removal for A/AAAA records option is selected and if you try to delete the A or AAAA records in zones served by Microsoft servers, the appliance displays the Delete Confirmation (A or AAAA Record) dialog box to confirm whether you want to remove the corresponding PTR record that was automatically generated while creating the A or AAAA record. In the Delete Confirmation dialog box, select the Remove associated PTR resource record(s) checkbox and click Yes to delete the associated PTR record or click No to cancel. For information about enabling this option, see Deleting PTR Records associated with A or AAAA Records.
- You can add and edit DNAME records in a DNS zone assigned to a Microsoft server running Windows 2008 or Windows Server 2012. You cannot add or edit DNAME records in zones assigned to Microsoft servers running earlier Windows versions.
- You can disable synchronized resource records from Grid Manager. When you disable a resource record, it is removed from the Microsoft server at the next synchronization.
- If you add a resource record with invalid data from Grid Manager, such as a DNAME record with an alias name that has special characters, the invalid resource record is not synchronized to the Microsoft server and is eventually deleted from the Grid. The error is logged in the Microsoft log.
- If the zone of the resource record was created using Grid Manager, then it and all its resource records inherit their TTL values from the Grid. Note that these values might be different from those on the Microsoft server. You can change these values to match those on the Microsoft server. For information on changing these values, see Configuring DNS Service Properties.
- Grid Manager and Microsoft DNS servers display TXT records differently.
On Grid Manager, you enter the text string of TXT records as defined in RFC 1035. You can enter the following:- A contiguous set of characters without spaces. If you enclose the characters in double quotes, Grid Manager displays the character string without the double quotes. For example, if you enter "abcdef", Grid Manager displays abcdef.
- A string that contains any character, including spaces, enclosed in quotes.
- If the string contains a quote ("), you must precede it with a backslash.
- If you enter a text string with multiple spaces between each word and the string is not enclosed in double quotes, Grid Manager displays the text string with a single space between each word. For example, if you enter text string, the GUI displays text string. To preserve multiple spaces, enclose the string in double quotes.
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