Merge pull request #7910 from mind04/disable-packetcache

[thirdparty/pdns.git] / docs / settings.rst

diff --git a/docs/settings.rst b/docs/settings.rst
index 91963b5c31fd3a391fe52b1c7062ee46dc4d2ddd..3c00056cfdacafff081fc7803edc6446c87cc51b 100644 (file)
--- a/docs/settings.rst
+++ b/docs/settings.rst
@@ -180,7 +180,7 @@ Also AXFR a zone from a master with a lower serial.
 -  Integer
 -  Default: 20
 
-Seconds to store packets in the :ref:`packet-cache`.
+Seconds to store packets in the :ref:`packet-cache`. A value of 0 will disable the cache.
 
 .. _setting-carbon-instance:
 
@@ -508,6 +508,9 @@ inside a supervisor that handles logging (like systemd).
 -  Boolean
 -  Default: no
 
+.. versionchanged:: 4.2.0
+  This setting has been removed
+
 Do not listen to TCP queries. Breaks RFC compliance.
 
 .. _setting-distributor-threads:
@@ -910,7 +913,8 @@ protection measure to avoid database explosion due to long names.
 -  Integer
 -  Default: 500
 
-Limit the number of NSEC3 hash iterations
+Limit the number of NSEC3 hash iterations for zone configurations.
+For more information see :ref:`dnssec-operational-nsec-modes-params`.
 
 .. _setting-max-packet-cache-entries:
 
@@ -1455,15 +1459,20 @@ This path will also contain the pidfile for this instance of PowerDNS
 called ``pdns.pid`` by default. See :ref:`setting-config-name`
 and :doc:`Virtual Hosting <guides/virtual-instances>` how this can differ.
 
-.. _setting-supermaster:
+.. _setting-superslave:
 
-``supermaster``
+``superslave``
 ---------------
 
 -  Boolean
 -  Default: no
 
-.. versionadded:: 4.2.0
+.. versionadded:: 4.1.9
+  In versions before 4.1.9, this setting did not exist and supermaster support
+  was enabled by default.
+
+.. versionchanged:: 4.2.0
+  Before 4.2.0, the default was yes.
 
 Turn on supermaster support. See :ref:`supermaster-operation`.
 
@@ -1553,6 +1562,8 @@ IP address of incoming notification proxy
 
 ``udp-truncation-threshold``
 ----------------------------
+.. versionchanged:: 4.2.0
+  Before 4.2.0, the default was 1680
 
 -  Integer
 -  Default: 1232