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.. _mod-synthrecord:
``synthrecord`` – Automatic forward/reverse records
===================================================
This module is able to synthesize either forward or reverse records for
a given prefix and subnet.
Records are synthesized only if the query can't be satisfied from the zone.
Both IPv4 and IPv6 are supported.
Example
-------
Automatic forward records
.........................
::
mod-synthrecord:
- id: test1
type: forward
prefix: dynamic-
ttl: 400
network: 2620:0:b61::/52
zone:
- domain: test.
file: test.zone # Must exist
module: mod-synthrecord/test1
Result:
.. code-block:: console
$ kdig AAAA dynamic-2620-0-b61-100--1.test.
...
;; QUESTION SECTION:
;; dynamic-2620-0-b61-100--1.test. IN AAAA
;; ANSWER SECTION:
dynamic-2620-0-b61-100--1.test. 400 IN AAAA 2620:0:b61:100::1
You can also have CNAME aliases to the dynamic records, which are going to be
further resolved:
.. code-block:: console
$ kdig AAAA alias.test.
...
;; QUESTION SECTION:
;; alias.test. IN AAAA
;; ANSWER SECTION:
alias.test. 3600 IN CNAME dynamic-2620-0-b61-100--2.test.
dynamic-2620-0-b61-100--2.test. 400 IN AAAA 2620:0:b61:100::2
Automatic reverse records
.........................
::
mod-synthrecord:
- id: test2
type: reverse
prefix: dynamic-
origin: test
ttl: 400
network: 2620:0:b61::/52
zone:
- domain: 1.6.b.0.0.0.0.0.0.2.6.2.ip6.arpa.
file: 1.6.b.0.0.0.0.0.0.2.6.2.ip6.arpa.zone # Must exist
module: mod-synthrecord/test2
Result:
.. code-block:: console
$ kdig -x 2620:0:b61::1
...
;; QUESTION SECTION:
;; 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.6.b.0.0.0.0.0.0.2.6.2.ip6.arpa. IN PTR
;; ANSWER SECTION:
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.6.b.0.0.0.0.0.0.2.6.2.ip6.arpa. 400 IN PTR dynamic-2620-0-b61--1.test.
Module reference
----------------
::
mod-synthrecord:
- id: STR
type: forward | reverse
prefix: STR
origin: DNAME
ttl: INT
network: ADDR[/INT] | ADDR-ADDR ...
reverse-short: BOOL
.. _mod-synthrecord_id:
id
..
A module identifier.
.. _mod-synthrecord_type:
type
....
The type of generated records.
Possible values:
- ``forward`` – Forward records
- ``reverse`` – Reverse records
*Required*
.. _mod-synthrecord_prefix:
prefix
......
A record owner prefix.
.. NOTE::
The value doesn’t allow dots, address parts in the synthetic names are
separated with a dash.
*Default:* empty
.. _mod-synthrecord_origin:
origin
......
A zone origin (only valid for the :ref:`reverse type<mod-synthrecord_type>`).
*Required*
.. _mod-synthrecord_ttl:
ttl
...
Time to live of the generated records.
*Default:* ``3600``
.. _mod-synthrecord_network:
network
.......
An IP address, a network subnet, or a network range the query must match.
*Required*
.. _mod-synthrecord_reverse-short:
reverse-short
.............
If enabled, a shortened IPv6 address can be used for reverse record rdata synthesis.
*Default:* ``on``
|
