upstream/bind9
1
0
Fork 0
mirror of https://github.com/isc-projects/bind9.git synced 2026-05-28 04:34:54 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

Deduplicate edns-udp-size definition in the ARM

Browse source 
(cherry picked from commit 624bbf403c)
This commit is contained in:
Petr Špaček 2022-06-16 17:03:53 +02:00
parent 40b9aa2e0b
commit 9ccadcc310
No known key found for this signature in database
GPG key ID: ABD587CDF06581AE
1 changed files with 8 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
doc/arm/reference.rst
View file

@ -4035,7 +4035,8 @@ Tuning
payload size on **reliable** networks would be 1432.
Any server-specific ``edns-udp-size`` setting has precedence over all
the above rules.
the above rules, i.e. configures a static value for a given
:namedconf:ref:`server` block.
.. namedconf:statement:: max-udp-size
@ -5154,21 +5155,6 @@ any top-level ``server`` statements are used as defaults.
use EDNS when communicating with the remote server. The default is
``yes``.
.. namedconf:statement:: edns-udp-size
The ``edns-udp-size`` option sets the EDNS UDP size that is advertised
by :iscman:`named` when querying the remote server. Valid values are 512 to
4096 bytes; values outside this range are silently adjusted to the
nearest value within it. This option is useful when
advertising a different value to this server than the value advertised
globally: for example, when there is a firewall at the remote site that
is blocking large replies. Note: currently, this sets a single UDP size
for all packets sent to the server; :iscman:`named` does not deviate from this
value. This differs from the behavior of ``edns-udp-size`` in
``options`` or ``view`` statements, where it specifies a maximum value.
The ``server`` statement behavior may be brought into conformance with
the ``options``/``view`` behavior in future releases.
.. namedconf:statement:: edns-version
The ``edns-version`` option sets the maximum EDNS VERSION that is
@ -5282,6 +5268,12 @@ any top-level ``server`` statements are used as defaults.
may determine that COOKIE is not supported by the remote server and not
add a COOKIE EDNS option to requests.
It is possible to override the following values defined in :namedconf:ref:`view`
and :namedconf:ref:`options` blocks:
- :namedconf:ref:`edns-udp-size`
.. _statschannels:
``statistics-channels`` Statement Grammar