diff --git a/cluster/addons/dns/coredns/coredns.yaml.base b/cluster/addons/dns/coredns/coredns.yaml.base
index b6774713e01..e190fadbbf1 100644
--- a/cluster/addons/dns/coredns/coredns.yaml.base
+++ b/cluster/addons/dns/coredns/coredns.yaml.base
@@ -112,7 +112,7 @@ spec:
         imagePullPolicy: IfNotPresent
         resources:
           limits:
-            memory: 170Mi
+            memory: 1000Mi
           requests:
             cpu: 100m
             memory: 70Mi
diff --git a/cluster/addons/dns/coredns/coredns.yaml.in b/cluster/addons/dns/coredns/coredns.yaml.in
index 7beb3769c3d..355dac35c9e 100644
--- a/cluster/addons/dns/coredns/coredns.yaml.in
+++ b/cluster/addons/dns/coredns/coredns.yaml.in
@@ -112,7 +112,7 @@ spec:
         imagePullPolicy: IfNotPresent
         resources:
           limits:
-            memory: 170Mi
+            memory: 1000Mi
           requests:
             cpu: 100m
             memory: 70Mi
diff --git a/cluster/addons/dns/coredns/coredns.yaml.sed b/cluster/addons/dns/coredns/coredns.yaml.sed
index 4f0dc10a10e..eefecf83055 100644
--- a/cluster/addons/dns/coredns/coredns.yaml.sed
+++ b/cluster/addons/dns/coredns/coredns.yaml.sed
@@ -112,7 +112,7 @@ spec:
         imagePullPolicy: IfNotPresent
         resources:
           limits:
-            memory: 170Mi
+            memory: 1000Mi
           requests:
             cpu: 100m
             memory: 70Mi
diff --git a/cluster/gce/config-default.sh b/cluster/gce/config-default.sh
index 867fc1c86e0..ebb9b9d23c1 100755
--- a/cluster/gce/config-default.sh
+++ b/cluster/gce/config-default.sh
@@ -259,7 +259,7 @@ fi
 
 # Optional: Install cluster DNS.
 # Set CLUSTER_DNS_CORE_DNS to 'true' to install CoreDNS instead of kube-dns.
-CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-false}"
+CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-true}"
 ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
 DNS_SERVER_IP="${KUBE_DNS_SERVER_IP:-10.0.0.10}"
 DNS_DOMAIN="${KUBE_DNS_DOMAIN:-cluster.local}"
diff --git a/cluster/gce/config-test.sh b/cluster/gce/config-test.sh
index 4766afa5701..b2c6f980461 100755
--- a/cluster/gce/config-test.sh
+++ b/cluster/gce/config-test.sh
@@ -266,7 +266,7 @@ fi
 
 # Optional: Install cluster DNS.
 # Set CLUSTER_DNS_CORE_DNS to 'true' to install CoreDNS instead of kube-dns.
-CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-false}"
+CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-true}"
 ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
 DNS_SERVER_IP="10.0.0.10"
 DNS_DOMAIN="cluster.local"