diff --git a/internal/db/models/node_cluster_dao.go b/internal/db/models/node_cluster_dao.go
index 22265f3c..d329b215 100644
--- a/internal/db/models/node_cluster_dao.go
+++ b/internal/db/models/node_cluster_dao.go
@@ -142,10 +142,11 @@ func (this *NodeClusterDAO) CreateCluster(tx *dbs.Tx, adminId int64, name string
 	// DNS设置
 	op.DnsDomainId = dnsDomainId
 	op.DnsName = dnsName
-	dnsConfig := &dnsconfigs.ClusterDNSConfig{
+	var dnsConfig = &dnsconfigs.ClusterDNSConfig{
 		NodesAutoSync:   true,
 		ServersAutoSync: true,
 		CNameRecords:    []string{},
+		CNameAsDomain:   true,
 		TTL:             0,
 	}
 	dnsJSON, err := json.Marshal(dnsConfig)
@@ -463,7 +464,7 @@ func (this *NodeClusterDAO) ExistClusterDNSName(tx *dbs.Tx, dnsName string, excl
 }
 
 // UpdateClusterDNS 修改集群DNS相关信息
-func (this *NodeClusterDAO) UpdateClusterDNS(tx *dbs.Tx, clusterId int64, dnsName string, dnsDomainId int64, nodesAutoSync bool, serversAutoSync bool, cnameRecords []string, ttl int32) error {
+func (this *NodeClusterDAO) UpdateClusterDNS(tx *dbs.Tx, clusterId int64, dnsName string, dnsDomainId int64, nodesAutoSync bool, serversAutoSync bool, cnameRecords []string, ttl int32, cnameAsDomain bool) error {
 	if clusterId <= 0 {
 		return errors.New("invalid clusterId")
 	}
@@ -503,6 +504,7 @@ func (this *NodeClusterDAO) UpdateClusterDNS(tx *dbs.Tx, clusterId int64, dnsNam
 		ServersAutoSync: serversAutoSync,
 		CNameRecords:    cnameRecords,
 		TTL:             ttl,
+		CNameAsDomain:   cnameAsDomain,
 	}
 	dnsJSON, err := json.Marshal(dnsConfig)
 	if err != nil {
diff --git a/internal/db/models/node_cluster_model_ext.go b/internal/db/models/node_cluster_model_ext.go
index e4a3b930..2bae1f91 100644
--- a/internal/db/models/node_cluster_model_ext.go
+++ b/internal/db/models/node_cluster_model_ext.go
@@ -13,9 +13,12 @@ func (this *NodeCluster) DecodeDNSConfig() (*dnsconfigs.ClusterDNSConfig, error)
 		return &dnsconfigs.ClusterDNSConfig{
 			NodesAutoSync:   false,
 			ServersAutoSync: false,
+			CNameAsDomain:   true,
 		}, nil
 	}
-	dnsConfig := &dnsconfigs.ClusterDNSConfig{}
+	var dnsConfig = &dnsconfigs.ClusterDNSConfig{
+		CNameAsDomain: true,
+	}
 	err := json.Unmarshal(this.Dns, &dnsConfig)
 	if err != nil {
 		return nil, err
diff --git a/internal/db/models/server_dao.go b/internal/db/models/server_dao.go
index a799b23c..77a332d9 100644
--- a/internal/db/models/server_dao.go
+++ b/internal/db/models/server_dao.go
@@ -1080,13 +1080,19 @@ func (this *ServerDAO) ComposeServerConfig(tx *dbs.Tx, server *Server, cacheMap
 			return nil, err
 		}
 		if clusterDNS != nil && clusterDNS.DnsDomainId > 0 {
-			domain, err := dns.SharedDNSDomainDAO.FindEnabledDNSDomain(tx, int64(clusterDNS.DnsDomainId), cacheMap)
+			clusterDNSConfig, err := clusterDNS.DecodeDNSConfig()
 			if err != nil {
 				return nil, err
 			}
-			if domain != nil {
-				cname := server.DnsName + "." + domain.Name
-				config.AliasServerNames = append(config.AliasServerNames, cname)
+			if clusterDNSConfig.CNameAsDomain {
+				domain, err := dns.SharedDNSDomainDAO.FindEnabledDNSDomain(tx, int64(clusterDNS.DnsDomainId), cacheMap)
+				if err != nil {
+					return nil, err
+				}
+				if domain != nil {
+					var cname = server.DnsName + "." + domain.Name
+					config.AliasServerNames = append(config.AliasServerNames, cname)
+				}
 			}
 		}
 	}
diff --git a/internal/rpc/services/service_node_cluster.go b/internal/rpc/services/service_node_cluster.go
index a6f65e95..ef50e7a6 100644
--- a/internal/rpc/services/service_node_cluster.go
+++ b/internal/rpc/services/service_node_cluster.go
@@ -429,7 +429,7 @@ func (this *NodeClusterService) FindEnabledNodeClusterDNS(ctx context.Context, r
 		return nil, err
 	}
 
-	tx := this.NullTx()
+	var tx = this.NullTx()
 
 	dnsInfo, err := models.SharedNodeClusterDAO.FindClusterDNSInfo(tx, req.NodeClusterId, nil)
 	if err != nil {
@@ -457,6 +457,7 @@ func (this *NodeClusterService) FindEnabledNodeClusterDNS(ctx context.Context, r
 			ServersAutoSync: dnsConfig.ServersAutoSync,
 			CnameRecords:    dnsConfig.CNameRecords,
 			Ttl:             dnsConfig.TTL,
+			CnameAsDomain:   dnsConfig.CNameAsDomain,
 		}, nil
 	}
 
@@ -471,7 +472,7 @@ func (this *NodeClusterService) FindEnabledNodeClusterDNS(ctx context.Context, r
 			Provider: nil,
 		}, nil
 	}
-	pbDomain := &pb.DNSDomain{
+	var pbDomain = &pb.DNSDomain{
 		Id:   int64(domain.Id),
 		Name: domain.Name,
 		IsOn: domain.IsOn,
@@ -515,6 +516,7 @@ func (this *NodeClusterService) FindEnabledNodeClusterDNS(ctx context.Context, r
 		ServersAutoSync: dnsConfig.ServersAutoSync,
 		CnameRecords:    dnsConfig.CNameRecords,
 		Ttl:             dnsConfig.TTL,
+		CnameAsDomain:   dnsConfig.CNameAsDomain,
 		DefaultRoute:    defaultRoute,
 	}, nil
 }
@@ -527,7 +529,7 @@ func (this *NodeClusterService) CountAllEnabledNodeClustersWithDNSProviderId(ctx
 		return nil, err
 	}
 
-	tx := this.NullTx()
+	var tx = this.NullTx()
 
 	count, err := models.SharedNodeClusterDAO.CountAllEnabledClustersWithDNSProviderId(tx, req.DnsProviderId)
 	if err != nil {
@@ -544,7 +546,7 @@ func (this *NodeClusterService) CountAllEnabledNodeClustersWithDNSDomainId(ctx c
 		return nil, err
 	}
 
-	tx := this.NullTx()
+	var tx = this.NullTx()
 
 	count, err := models.SharedNodeClusterDAO.CountAllEnabledClustersWithDNSDomainId(tx, req.DnsDomainId)
 	if err != nil {
@@ -561,7 +563,7 @@ func (this *NodeClusterService) FindAllEnabledNodeClustersWithDNSDomainId(ctx co
 		return nil, err
 	}
 
-	tx := this.NullTx()
+	var tx = this.NullTx()
 
 	clusters, err := models.SharedNodeClusterDAO.FindAllEnabledClustersWithDNSDomainId(tx, req.DnsDomainId)
 	if err != nil {
@@ -589,7 +591,7 @@ func (this *NodeClusterService) CheckNodeClusterDNSName(ctx context.Context, req
 		return nil, err
 	}
 
-	tx := this.NullTx()
+	var tx = this.NullTx()
 
 	exists, err := models.SharedNodeClusterDAO.ExistClusterDNSName(tx, req.DnsName, req.NodeClusterId)
 	if err != nil {
@@ -606,9 +608,9 @@ func (this *NodeClusterService) UpdateNodeClusterDNS(ctx context.Context, req *p
 		return nil, err
 	}
 
-	tx := this.NullTx()
+	var tx = this.NullTx()
 
-	err = models.SharedNodeClusterDAO.UpdateClusterDNS(tx, req.NodeClusterId, req.DnsName, req.DnsDomainId, req.NodesAutoSync, req.ServersAutoSync, req.CnameRecords, req.Ttl)
+	err = models.SharedNodeClusterDAO.UpdateClusterDNS(tx, req.NodeClusterId, req.DnsName, req.DnsDomainId, req.NodesAutoSync, req.ServersAutoSync, req.CnameRecords, req.Ttl, req.CnameAsDomain)
 	if err != nil {
 		return nil, err
 	}