diff --git a/dist/images/install.sh b/dist/images/install.sh
index b3fcedbad42..a8f924d5ee4 100755
--- a/dist/images/install.sh
+++ b/dist/images/install.sh
@@ -42,7 +42,7 @@ POD_GATEWAY="10.16.0.1"
 SVC_CIDR="10.96.0.0/12"                # Do NOT overlap with NODE/POD/JOIN CIDR
 JOIN_CIDR="100.64.0.0/16"              # Do NOT overlap with NODE/POD/SVC CIDR
 PINGER_EXTERNAL_ADDRESS="114.114.114.114"  # Pinger check external ip probe
-PINGER_EXTERNAL_DOMAIN="alauda.cn"         # Pinger check external domain probe
+PINGER_EXTERNAL_DOMAIN="alauda.cn."         # Pinger check external domain probe
 SVC_YAML_IPFAMILYPOLICY=""
 if [ "$IPV6" = "true" ]; then
   POD_CIDR="fd00:10:16::/64"                # Do NOT overlap with NODE/SVC/JOIN CIDR
@@ -50,7 +50,7 @@ if [ "$IPV6" = "true" ]; then
   SVC_CIDR="fd00:10:96::/112"               # Do NOT overlap with NODE/POD/JOIN CIDR
   JOIN_CIDR="fd00:100:64::/64"              # Do NOT overlap with NODE/POD/SVC CIDR
   PINGER_EXTERNAL_ADDRESS="2400:3200::1"
-  PINGER_EXTERNAL_DOMAIN="google.com"
+  PINGER_EXTERNAL_DOMAIN="google.com."
 fi
 if [ "$DUAL_STACK" = "true" ]; then
   POD_CIDR="10.16.0.0/16,fd00:10:16::/64"                # Do NOT overlap with NODE/SVC/JOIN CIDR
@@ -58,7 +58,7 @@ if [ "$DUAL_STACK" = "true" ]; then
   SVC_CIDR="10.96.0.0/12,fd00:10:96::/112"               # Do NOT overlap with NODE/POD/JOIN CIDR
   JOIN_CIDR="100.64.0.0/16,fd00:100:64::/64"             # Do NOT overlap with NODE/POD/SVC CIDR
   PINGER_EXTERNAL_ADDRESS="114.114.114.114,2400:3200::1"
-  PINGER_EXTERNAL_DOMAIN="google.com"
+  PINGER_EXTERNAL_DOMAIN="google.com."
   SVC_YAML_IPFAMILYPOLICY="ipFamilyPolicy: PreferDualStack"
 fi
 
diff --git a/yamls/kube-ovn-dual-stack.yaml b/yamls/kube-ovn-dual-stack.yaml
index addaf640b44..873ce04de82 100644
--- a/yamls/kube-ovn-dual-stack.yaml
+++ b/yamls/kube-ovn-dual-stack.yaml
@@ -288,7 +288,7 @@ spec:
           command:
             - /kube-ovn/kube-ovn-pinger
             - --external-address=114.114.114.114,2400:3200::1
-            - --external-dns=alauda.cn
+            - --external-dns=google.com.
           imagePullPolicy: IfNotPresent
           securityContext:
             runAsUser: 0
diff --git a/yamls/kube-ovn-ipv6.yaml b/yamls/kube-ovn-ipv6.yaml
index 86a96fdd2f2..ef49fbfc564 100644
--- a/yamls/kube-ovn-ipv6.yaml
+++ b/yamls/kube-ovn-ipv6.yaml
@@ -265,7 +265,7 @@ spec:
           command:
             - /kube-ovn/kube-ovn-pinger
             - --external-address=2400:3200::1
-            - --external-dns=alauda.cn
+            - --external-dns=google.com.
           imagePullPolicy: IfNotPresent
           securityContext:
             runAsUser: 0
diff --git a/yamls/kube-ovn.yaml b/yamls/kube-ovn.yaml
index 442c28205bf..168b178aeb1 100644
--- a/yamls/kube-ovn.yaml
+++ b/yamls/kube-ovn.yaml
@@ -311,7 +311,7 @@ spec:
           command:
             - /kube-ovn/kube-ovn-pinger
             - --external-address=114.114.114.114
-            - --external-dns=alauda.cn
+            - --external-dns=alauda.cn.
           imagePullPolicy: IfNotPresent
           securityContext:
             runAsUser: 0