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-rw-r--r--ctdb/doc/ctdbd.1.xml9
1 files changed, 9 insertions, 0 deletions
diff --git a/ctdb/doc/ctdbd.1.xml b/ctdb/doc/ctdbd.1.xml
index aa51f43093..91e2f9fe81 100644
--- a/ctdb/doc/ctdbd.1.xml
+++ b/ctdb/doc/ctdbd.1.xml
@@ -900,6 +900,15 @@ CTDB_CAPABILITY_RECMASTER=no
# CTDB_NATGW_DEFAULT_GATEWAY=10.0.0.1
# CTDB_NATGW_PRIVATE_NETWORK=10.1.1.0/24
# CTDB_NATGW_NODES=/etc/ctdb/natgw_nodes
+#
+# Normally any node in the natgw group can act as the natgw master.
+# In some configurations you may have special nodes that is a part of the
+# cluster/natgw group, but where the node lacks connectivity to the
+# public network.
+# For these cases, set this variable to make these nodes not able to
+# become natgw master.
+#
+# CTDB_NATGW_SLAVE_ONLY=yes
</screen>
</refsect2>