[AETHER-1000]

Allow reverse DNS lookups to work

NOTE: requires change in syntax used to define a zone - dns_zones no
longer works, must use dns_forward_zones/dns_reverse_zones

Fix multiplatform support

Change-Id: Ibd416b2da8853bc0b25ddec1774ddf9a9e1bf898
diff --git a/tasks/OpenBSD.yml b/tasks/OpenBSD.yml
index e64f33f..e067aa9 100644
--- a/tasks/OpenBSD.yml
+++ b/tasks/OpenBSD.yml
@@ -4,4 +4,8 @@
 # SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
 # SPDX-License-Identifier: Apache-2.0
 
-# nothing to do here, OpenBSD already has NSD installed in base
+#  NSD installed in base
+
+- name: Set unbound arguments for use with service module
+  set_fact:
+    nsd_arguments: "-c /var/nsd/etc/nsd.conf"