diff --git a/backend/constants/register.go b/backend/constants/register.go
new file mode 100644
index 00000000..ad38e7a3
--- /dev/null
+++ b/backend/constants/register.go
@@ -0,0 +1,7 @@
+package constants
+
+const (
+	RegisterTypeMac      = "mac"
+	RegisterTypeIp       = "ip"
+	RegisterTypeHostname = "hostname"
+)
diff --git a/backend/model/node.go b/backend/model/node.go
index 88c4ed66..51cd5d7e 100644
--- a/backend/model/node.go
+++ b/backend/model/node.go
@@ -20,6 +20,7 @@ type Node struct {
 	Ip          string        `json:"ip" bson:"ip"`
 	Port        string        `json:"port" bson:"port"`
 	Mac         string        `json:"mac" bson:"mac"`
+	Hostname    string        `json:"hostname" bson:"hostname"`
 	Description string        `json:"description" bson:"description"`
 	// 用于唯一标识节点，可能是mac地址，可能是ip地址
 	Key string `json:"key" bson:"key"`
diff --git a/backend/scripts/install-java.sh b/backend/scripts/install-java.sh
old mode 100644
new mode 100755
index d01d0247..c42a2901
--- a/backend/scripts/install-java.sh
+++ b/backend/scripts/install-java.sh
@@ -4,8 +4,7 @@
 touch /tmp/install-java.lock
 
 # install java
-apt-get update
-apt-get install -y default-jdk
+apt-get update && apt-get install -y default-jdk
 ln -s /usr/bin/java /usr/local/bin/java
 
 # unlock
diff --git a/backend/services/node.go b/backend/services/node.go
index d6124205..f189ddb3 100644
--- a/backend/services/node.go
+++ b/backend/services/node.go
@@ -161,6 +161,14 @@ func UpdateNodeData() {
 		log.Errorf(err.Error())
 		return
 	}
+
+	// 获取Hostname
+	hostname, err := register.GetRegister().GetHostname()
+	if err != nil {
+		log.Errorf(err.Error())
+		return
+	}
+
 	// 获取redis的key
 	key, err := register.GetRegister().GetKey()
 	if err != nil {
diff --git a/backend/services/register/register.go b/backend/services/register/register.go
index ed4e1891..bbdec2f3 100644
--- a/backend/services/register/register.go
+++ b/backend/services/register/register.go
@@ -1,6 +1,7 @@
 package register
 
 import (
+	"crawlab/constants"
 	"github.com/apex/log"
 	"github.com/spf13/viper"
 	"net"
@@ -108,9 +109,9 @@ func GetRegister() Register {
 		}
 
 		registerType := viper.GetString("server.register.type")
-		if registerType == "mac" {
+		if registerType == constants.RegisterTypeMac {
 			register = &MacRegister{}
-		} else {
+		} else if registerType == constants.RegisterTypeIp {
 			ip := viper.GetString("server.register.ip")
 			if ip == "" {
 				log.Error("server.register.ip is empty")
@@ -120,6 +121,7 @@ func GetRegister() Register {
 			register = &IpRegister{
 				Ip: ip,
 			}
+		} else if registerType == constants.RegisterTypeHostname {
 		}
 		log.Info("register type is :" + reflect.TypeOf(register).String())