bindbackend: Document bind-supermaster-config

diff --git a/docs/backends/bind.rst b/docs/backends/bind.rst
index 04a110ebbb4772c7ab1677107dae7490067e3db3..16a8f19b529d19ebb2995df91797f6c09d09ea03 100644 (file)
--- a/docs/backends/bind.rst
+++ b/docs/backends/bind.rst
@@ -105,6 +105,28 @@ Store DNSSEC keys and metadata storage in another backend. See the
 Setting this option to ``yes`` makes PowerDNS ignore out of zone records
 when loading zone files.
 
+.. _setting-bind-supermasters:
+
+``bind-supermasters``
+~~~~~~~~~~~~~~~~~~~~~
+
+Specifies file where to read list of autoprimaries.
+BIND backend only checks IP address of primary server.
+
+The file must contain one IP and account per line, separated by whitespace.
+
+BIND backend can only read this file, not write it.
+
+
+.. _setting-bind-supermaster-config:
+
+``bind-supermaster-config``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+When a new zone is configured via the autosecondary mechanism, bindbackend *writes* a zone entry to this file.
+
+Your ``bind-config`` file should have an ``include`` statement to make sure this file is read on startup.
+
 .. _bind-operation:
 
 Operation