Update modes-of-operation.rst

Clarified usage of SOA record, NS records and supermasters table.

diff --git a/docs/modes-of-operation.rst b/docs/modes-of-operation.rst
index b4f42f69d06c51c0b1f418a82ef5e20bb1f607ef..5b0d8c70c18081390d82e83eb8c946dcff099014 100644 (file)
--- a/docs/modes-of-operation.rst
+++ b/docs/modes-of-operation.rst
@@ -202,9 +202,9 @@ must be met:
 
 
 - :ref:`setting-superslave` support must be enabled
-- The supermaster must carry a SOA record for the notified domain
-- The supermaster IP must be present in the 'supermaster' table
-- The set of NS records for the domain, as retrieved by the slave from the supermaster, must include the name that goes with the IP address in the supermaster table
+- The supermaster must carry a SOA record for the notified domain corresponding with one of the NS records for that domain
+- The supermaster IP must be present in the 'supermasters' table in the database on the slave, along with the name mentioned in the SOA
+- The set of NS records for the domain, as retrieved by the slave from the supermaster, must include the name that goes with the IP address in the supermasters table
 - If your master sends signed NOTIFY it will mark that TSIG key as the TSIG key used for retrieval as well
 - If you turn off :ref:`setting-allow-unsigned-supermaster`, then your supermaster(s) are required to sign their notifications.