diff --git a/cmd/agent/main.go b/cmd/agent/main.go
index 4d92ae1..5aa7a22 100644
--- a/cmd/agent/main.go
+++ b/cmd/agent/main.go
@@ -166,6 +166,7 @@ func receiveCommand(hc pb.NezhaService_HeartbeatClient) error {
 }
 
 func reportState() {
+	var lastReportHostInfo time.Time
 	var err error
 	defer log.Printf("reportState exit %v => %v", time.Now(), err)
 	for {
@@ -176,6 +177,10 @@ func reportState() {
 				log.Printf("reportState error %v", err)
 				time.Sleep(delayWhenError)
 			}
+			if lastReportHostInfo.Before(time.Now().Add(-10 * time.Minute)) {
+				lastReportHostInfo = time.Now()
+				client.Register(ctx, monitor.GetHost().PB())
+			}
 		}
 	}
 }
diff --git a/cmd/dashboard/controller/member_api.go b/cmd/dashboard/controller/member_api.go
index 8d72f70..5b1d83f 100644
--- a/cmd/dashboard/controller/member_api.go
+++ b/cmd/dashboard/controller/member_api.go
@@ -261,10 +261,11 @@ func (ma *memberAPI) logout(c *gin.Context) {
 }
 
 type settingForm struct {
-	Title      string
-	Admin      string
-	Theme      string
-	CustomCode string
+	Title                      string
+	Admin                      string
+	Theme                      string
+	CustomCode                 string
+	EnableIPChangeNotification string
 }
 
 func (ma *memberAPI) updateSetting(c *gin.Context) {
@@ -276,6 +277,7 @@ func (ma *memberAPI) updateSetting(c *gin.Context) {
 		})
 		return
 	}
+	dao.Conf.EnableIPChangeNotification = sf.EnableIPChangeNotification == "on"
 	dao.Conf.Site.Brand = sf.Title
 	dao.Conf.Site.Theme = sf.Theme
 	dao.Conf.Site.CustomCode = sf.CustomCode
diff --git a/model/config.go b/model/config.go
index 1982f8e..616f92a 100644
--- a/model/config.go
+++ b/model/config.go
@@ -10,7 +10,6 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
-// Config ..
 type Config struct {
 	Debug bool
 	Site  struct {
@@ -24,7 +23,8 @@ type Config struct {
 		ClientID     string
 		ClientSecret string
 	}
-	HTTPPort uint
+	HTTPPort                   uint
+	EnableIPChangeNotification bool
 
 	v *viper.Viper
 }
diff --git a/resource/static/main.js b/resource/static/main.js
index aa5c653..2e14494 100644
--- a/resource/static/main.js
+++ b/resource/static/main.js
@@ -106,6 +106,8 @@ function addOrEditServer(server) {
     modal.find('.positive.button').html(server ? '修改<i class="edit icon"></i>' : '添加<i class="add icon"></i>')
     modal.find('input[name=id]').val(server ? server.ID : null)
     modal.find('input[name=name]').val(server ? server.Name : null)
+    modal.find('input[name=Tag]').val(server ? server.Tag : null)
+    modal.find('input[name=DisplayIndex]').val(server ? server.DisplayIndex : null)
     if (server) {
         modal.find('.secret.field').attr('style', '')
         modal.find('input[name=secret]').val(server.Secret)
diff --git a/resource/template/common/footer.html b/resource/template/common/footer.html
index e5842a1..6726aee 100644
--- a/resource/template/common/footer.html
+++ b/resource/template/common/footer.html
@@ -9,7 +9,7 @@
 <script src="https://cdn.jsdelivr.net/npm/semantic-ui@2.4.1/dist/semantic.min.js"></script>
 <script src="/static/semantic-ui-alerts.min.js"></script>
 <script src="https://cdn.jsdelivr.net/npm/vue@2.6.12/dist/vue.min.js"></script>
-<script src="/static/main.js?v202101082103"></script>
+<script src="/static/main.js?v202101132218"></script>
 </body>
 
 </html>
diff --git a/resource/template/dashboard/setting.html b/resource/template/dashboard/setting.html
index a65ab55..3c1e821 100644
--- a/resource/template/dashboard/setting.html
+++ b/resource/template/dashboard/setting.html
@@ -22,6 +22,12 @@
                 <label>自定义代码(style、script 都可以)</label>
                 <textarea name="CustomCode">{{.Conf.Site.CustomCode}}</textarea>
             </div>
+            <div class="field">
+                <div class="ui nf-ssl checkbox">
+                    <input name="EnableIPChangeNotification" type="checkbox" tabindex="0" class="hidden">
+                    <label>开启 IP 变更提醒</label>
+                </div>
+            </div>
             <button class="ui button" type="submit">保存</button>
         </form>
     </div>
@@ -40,5 +46,6 @@
         })
         return false;
     })
+    $('.checkbox').checkbox()
 </script>
 {{end}}
\ No newline at end of file
diff --git a/service/alertmanager/alertmanager.go b/service/alertmanager/alertmanager.go
index ad43299..e56725a 100644
--- a/service/alertmanager/alertmanager.go
+++ b/service/alertmanager/alertmanager.go
@@ -158,7 +158,7 @@ func checkStatus() {
 				}
 				if flag {
 					message := fmt.Sprintf("报警规则：%s，服务器：%s(%s)，%s，逮到咯，快去看看！", alert.Name, server.Name, server.Host.IP, desc)
-					go sendNotification(message)
+					go SendNotification(message)
 				}
 			}
 			// 清理旧数据
@@ -169,7 +169,7 @@ func checkStatus() {
 	}
 }
 
-func sendNotification(desc string) {
+func SendNotification(desc string) {
 	notificationsLock.RLock()
 	defer notificationsLock.RUnlock()
 	for i := 0; i < len(notifications); i++ {
diff --git a/service/rpc/nezha.go b/service/rpc/nezha.go
index e12003c..3a06b0a 100644
--- a/service/rpc/nezha.go
+++ b/service/rpc/nezha.go
@@ -2,11 +2,13 @@ package rpc
 
 import (
 	"context"
+	"fmt"
 	"log"
 	"time"
 
 	"github.com/naiba/nezha/model"
 	pb "github.com/naiba/nezha/proto"
+	"github.com/naiba/nezha/service/alertmanager"
 	"github.com/naiba/nezha/service/dao"
 )
 
@@ -60,6 +62,14 @@ func (s *NezhaHandler) Register(c context.Context, r *pb.Host) (*pb.Receipt, err
 	host := model.PB2Host(r)
 	dao.ServerLock.RLock()
 	defer dao.ServerLock.RUnlock()
+	if dao.ServerList[clientID].Host != nil &&
+		dao.ServerList[clientID].Host.IP != "" &&
+		host.IP != "" &&
+		dao.ServerList[clientID].Host.IP != host.IP {
+		alertmanager.SendNotification(fmt.Sprintf(
+			"服务器：%s IP变更提醒，旧IP：%s，新IP：%s。",
+			dao.ServerList[clientID].Name, dao.ServerList[clientID].Host.IP, host.IP))
+	}
 	dao.ServerList[clientID].Host = &host
 	return &pb.Receipt{Proced: true}, nil
 }