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Reverse DNS
===========
Get PTR record
--------------
PTR records refer to a parent device: either a Cloud Server or a Cloud
Load Balancer with a public virtual IP address. You must supply a fully
formed resource object in order to retrieve either one's PTR record:
.. code:: php
/** @param $parent OpenCloud\DNS\Resource\HasPtrRecordsInterface */
$ptr = $service->ptrRecord(array(
'parent' => $parent
));
So, in the above example, the ``$parent`` object could be an instance of
``OpenCloud\Compute\Resource\Server`` or
``OpenCloud\LoadBalancer\Resource\LoadBalancer`` - because they both
implement ``OpenCloud\DNS\Resource\HadPtrRecordsInterface``. Please
consult the `server documentation <../compute>`__ and `load
balancer documentation <../load-balancer>`__ for more
detailed usage instructions.
List PTR records
----------------
.. code:: php
/** @param $parent OpenCloud\DNS\Resource\HasPtrRecordsInterface */
$ptrRecords = $service->ptrRecordList($parent);
foreach ($ptrRecords as $ptrRecord) {
}
Add PTR record
--------------
.. code:: php
$parent = $computeService->server('foo-server-id');
$ptr = $dnsService->ptrRecord(array(
'parent' => $parent,
'ttl' => 3600,
'name' => 'example.com',
'type' => 'PTR',
'data' => '192.0.2.7'
));
$ptr->create();
Here is a table that explains the above attributes:
+-----------+------------------------------------------------------------------------------------+------------+
| Name | Description | Required |
+===========+====================================================================================+============+
| type | Specifies the record type as "PTR". | Yes |
+-----------+------------------------------------------------------------------------------------+------------+
| name | Specifies the name for the domain or subdomain. Must be a valid domain name. | Yes |
+-----------+------------------------------------------------------------------------------------+------------+
| data | The data field for PTR records must be a valid IPv4 or IPv6 IP address. | Yes |
+-----------+------------------------------------------------------------------------------------+------------+
| ttl | If specified, must be greater than 300. Defaults to 3600 if no TTL is specified. | No |
+-----------+------------------------------------------------------------------------------------+------------+
| comment | If included, its length must be less than or equal to 160 characters. | No |
+-----------+------------------------------------------------------------------------------------+------------+
Modify PTR record
-----------------
.. code:: php
$ptr->update(array(
'ttl' => $ptr->ttl * 2
));
Delete PTR record
-----------------
.. code:: php
$ptr->delete();