--- a/usr/lib/univention-install/97univention-s4-connector.inst	2011-12-01 17:14:05.000000000 +0100
+++ b/usr/lib/univention-install/97univention-s4-connector.inst	2012-01-31 16:02:09.000000000 +0100
@@ -50,7 +50,9 @@
 	connector/s4/ldap/protocol?ldapi \
 	connector/s4/ldap/socket?/var/lib/samba/private/ldap_priv/ldapi
 
-s4connectorservicehost_dns="$(univention-directory-manager computers/computer list "$@" --filter "(&(univentionService=${NAME})(!(cn=$hostname)))" | sed -ne 's|^DN: ||p')"
+if ! is_ucr_true 'connector/s4/allow/secondary'; then
+	s4connectorservicehost_dns="$(univention-directory-manager computers/computer list "$@" --filter "(&(univentionService=${NAME})(!(cn=$hostname)))" | sed -ne 's|^DN: ||p')"
+fi
 
 if [ -n "$s4connectorservicehost_dns" ]; then	## there already is a system providing this service