diff --git a/deploy/cephfs/kubernetes/csi-cephfsplugin.yaml b/deploy/cephfs/kubernetes/csi-cephfsplugin.yaml
index 7650ce5d8..e303c517b 100644
--- a/deploy/cephfs/kubernetes/csi-cephfsplugin.yaml
+++ b/deploy/cephfs/kubernetes/csi-cephfsplugin.yaml
@@ -13,6 +13,9 @@ spec:
     spec:
       serviceAccount: csi-nodeplugin
       hostNetwork: true
+      # to use e.g. Rook orchestrated cluster, and mons' FQDN is
+      # resolved through k8s service, set dns policy to cluster first
+      dnsPolicy: ClusterFirstWithHostNet      
       containers:
         - name: driver-registrar
           image: quay.io/k8scsi/driver-registrar:v0.3.0
diff --git a/deploy/rbd/kubernetes/csi-rbdplugin.yaml b/deploy/rbd/kubernetes/csi-rbdplugin.yaml
index f0872e886..e68681f72 100644
--- a/deploy/rbd/kubernetes/csi-rbdplugin.yaml
+++ b/deploy/rbd/kubernetes/csi-rbdplugin.yaml
@@ -13,6 +13,9 @@ spec:
     spec:
       serviceAccount: csi-nodeplugin
       hostNetwork: true
+      # to use e.g. Rook orchestrated cluster, and mons' FQDN is
+      # resolved through k8s service, set dns policy to cluster first
+      dnsPolicy: ClusterFirstWithHostNet      
       containers:
         - name: driver-registrar
           image: quay.io/k8scsi/driver-registrar:v0.3.0
diff --git a/examples/cephfs/storageclass.yaml b/examples/cephfs/storageclass.yaml
index 3dd84da06..1ed336c22 100644
--- a/examples/cephfs/storageclass.yaml
+++ b/examples/cephfs/storageclass.yaml
@@ -5,6 +5,7 @@ metadata:
 provisioner: csi-cephfsplugin
 parameters:
   # Comma separated list of Ceph monitors
+  # if using FQDN, make sure csi plugin's dns policy is appropriate.  
   monitors: mon1:port,mon2:port,...
 
   # For provisionVolume: "true":
diff --git a/examples/rbd/storageclass.yaml b/examples/rbd/storageclass.yaml
index 7535e2e01..536b07095 100644
--- a/examples/rbd/storageclass.yaml
+++ b/examples/rbd/storageclass.yaml
@@ -5,6 +5,7 @@ metadata:
 provisioner: csi-rbdplugin 
 parameters:
     # Comma separated list of Ceph monitors
+    # if using FQDN, make sure csi plugin's dns policy is appropriate.
     monitors: mon1:port,mon2:port,...
 
     # Ceph pool into which the RBD image shall be created