diff --git a/cmd/verysimple/cli.go b/cmd/verysimple/cli.go
index 7725caf..4a252b9 100644
--- a/cmd/verysimple/cli.go
+++ b/cmd/verysimple/cli.go
@@ -288,12 +288,12 @@ func generateConfigFileInteractively(m *machine.M) {
 			switch ihot {
 			case 0:
 
-				m.HotLoadDialConf("", confServer.Dial)
-				m.HotLoadListenConf(confServer.Listen)
+				m.LoadDialConf(confServer.Dial)
+				m.LoadListenConf(confServer.Listen, true)
 
 			case 1:
-				m.HotLoadDialConf("", confClient.Dial)
-				m.HotLoadListenConf(confClient.Listen)
+				m.LoadDialConf(confClient.Dial)
+				m.LoadListenConf(confClient.Listen, true)
 			}
 
 			utils.PrintStr("加载成功！你可以回退(ctrl+c)到上级来使用 【查询当前状态】来查询新增的配置\n")
@@ -525,12 +525,12 @@ func interactively_hotLoadConfigFile(m *machine.M) {
 	switch confMode {
 	case proxy.StandardMode:
 		if len(standardConf.Dial) > 0 {
-			defaultMachine.HotLoadDialConf("", standardConf.Dial)
+			defaultMachine.LoadDialConf(standardConf.Dial)
 
 		}
 
 		if len(standardConf.Listen) > 0 {
-			defaultMachine.HotLoadListenConf(standardConf.Listen)
+			defaultMachine.LoadListenConf(standardConf.Listen, true)
 
 		}
 	case proxy.SimpleMode:
diff --git a/cmd/verysimple/main.go b/cmd/verysimple/main.go
index b31147e..c6a326e 100644
--- a/cmd/verysimple/main.go
+++ b/cmd/verysimple/main.go
@@ -15,7 +15,6 @@ import (
 	"github.com/pkg/profile"
 	"go.uber.org/zap"
 
-	vs "github.com/e1732a364fed/v2ray_simple"
 	"github.com/e1732a364fed/v2ray_simple/httpLayer"
 	"github.com/e1732a364fed/v2ray_simple/machine"
 	"github.com/e1732a364fed/v2ray_simple/netLayer"
@@ -108,7 +107,7 @@ func mainFunc() (result int) {
 
 			result = -3
 
-			defaultMachine.Cleanup()
+			defaultMachine.Stop()
 		}
 	}()
 
@@ -231,20 +230,14 @@ func mainFunc() (result int) {
 	fmt.Printf("Log Level:%d\n", utils.LogLevel)
 
 	if ce := utils.CanLogInfo("Options"); ce != nil {
-
 		ce.Write(
 			zap.String("Log Level", utils.LogLevelStr(utils.LogLevel)),
 			zap.Bool("UseReadv", netLayer.UseReadv),
 		)
-
 	} else {
-
 		fmt.Printf("UseReadv:%t\n", netLayer.UseReadv)
-
 	}
 
-	var Default_uuid string
-
 	if mainFallback != nil {
 		defaultMachine.RoutingEnv.MainFallback = mainFallback
 	}
@@ -252,17 +245,15 @@ func mainFunc() (result int) {
 	//load inServers and RoutingEnv
 	switch configMode {
 	case proxy.SimpleMode:
-		//var theServer proxy.Server
 		result, _ = defaultMachine.LoadSimpleServer(simpleConf)
 		if result < 0 {
 			return result
 		}
-		//allServers = append(allServers, theServer)	//loadSimpleServer 已经加过一遍了
 
 	case proxy.StandardMode:
 
 		if appConf != nil {
-			Default_uuid = appConf.DefaultUUID
+			defaultMachine.DefaultUUID = appConf.DefaultUUID
 		}
 
 		//虽然标准模式支持多个Server，目前先只考虑一个
@@ -273,42 +264,10 @@ func mainFunc() (result int) {
 			break
 		}
 
-		for _, serverConf := range standardConf.Listen {
-			thisConf := serverConf
-
-			if thisConf.Uuid == "" && Default_uuid != "" {
-				thisConf.Uuid = Default_uuid
-			}
-
-			thisServer, err := proxy.NewServer(thisConf)
-			if err != nil {
-				if ce := utils.CanLogErr("can not create local server:"); ce != nil {
-					ce.Write(zap.Error(err))
-				}
-				continue
-			}
-
-			defaultMachine.AllServers = append(defaultMachine.AllServers, thisServer)
-		}
-
-		//将@前缀的 回落dest配置 替换成 实际的 地址。
+		defaultMachine.LoadListenConf(standardConf.Listen, false)
 
 		if len(standardConf.Fallbacks) > 0 {
-			for _, fbConf := range standardConf.Fallbacks {
-				if fbConf.Dest == nil {
-					continue
-				}
-				if deststr, ok := fbConf.Dest.(string); ok && strings.HasPrefix(deststr, "@") {
-					for _, s := range defaultMachine.AllServers {
-						if s.GetTag() == deststr[1:] {
-							log.Println("got tag fallback dest, will set to ", s.AddrStr())
-							fbConf.Dest = s.AddrStr()
-						}
-					}
-
-				}
-
-			}
+			defaultMachine.ParseFallbacksAtSymbol(standardConf.Fallbacks)
 		}
 		var myCountryISO_3166 string
 		if appConf != nil {
@@ -331,31 +290,18 @@ func mainFunc() (result int) {
 		if len(standardConf.Dial) < 1 {
 			utils.Warn("no dial in config settings, will add 'direct'")
 
-			defaultMachine.AllClients = append(defaultMachine.AllClients, vs.DirectClient)
-			defaultMachine.DefaultOutClient = vs.DirectClient
-
-			defaultMachine.RoutingEnv.SetClient("direct", vs.DirectClient)
+			defaultMachine.SetDefaultDirectClient()
 
 			break
 		}
 
-		defaultMachine.HotLoadDialConf(Default_uuid, standardConf.Dial)
+		defaultMachine.LoadDialConf(standardConf.Dial)
 
 	}
 
 	runPreCommands()
 
-	if (defaultMachine.DefaultOutClient != nil) && (len(defaultMachine.AllServers) > 0) {
-
-		for _, inServer := range defaultMachine.AllServers {
-			lis := vs.ListenSer(inServer, defaultMachine.DefaultOutClient, &defaultMachine.RoutingEnv, &defaultMachine.GlobalInfo)
-
-			if lis != nil {
-				defaultMachine.ListenCloserList = append(defaultMachine.ListenCloserList, lis)
-			}
-		}
-
-	}
+	defaultMachine.Start()
 
 	//没可用的listen/dial，而且还无法动态更改配置
 	if NoFuture(defaultMachine) {
@@ -409,7 +355,7 @@ func mainFunc() (result int) {
 
 		utils.Info("Program got close signal.")
 
-		defaultMachine.Cleanup()
+		defaultMachine.Stop()
 	}
 	return
 }
diff --git a/machine/cmd.go b/machine/load.go
similarity index 83%
rename from machine/cmd.go
rename to machine/load.go
index c11c78d..b948605 100644
--- a/machine/cmd.go
+++ b/machine/load.go
@@ -2,7 +2,6 @@ package machine
 
 import (
 	"fmt"
-	"log"
 
 	"github.com/e1732a364fed/v2ray_simple"
 	"github.com/e1732a364fed/v2ray_simple/netLayer"
@@ -11,13 +10,13 @@ import (
 	"go.uber.org/zap"
 )
 
-func (m *M) HotLoadDialConf(Default_uuid string, conf []*proxy.DialConf) (ok bool) {
+func (m *M) LoadDialConf(conf []*proxy.DialConf) (ok bool) {
 	ok = true
 
 	for _, d := range conf {
 
-		if d.Uuid == "" && Default_uuid != "" {
-			d.Uuid = Default_uuid
+		if d.Uuid == "" && m.DefaultUUID != "" {
+			d.Uuid = m.DefaultUUID
 		}
 
 		outClient, err := proxy.NewClient(d)
@@ -49,34 +48,47 @@ func (m *M) HotLoadDialConf(Default_uuid string, conf []*proxy.DialConf) (ok boo
 
 }
 
-func (m *M) HotLoadListenConf(conf []*proxy.ListenConf) (ok bool) {
+// add; when hot=true, listen the server
+func (m *M) LoadListenConf(conf []*proxy.ListenConf, hot bool) (ok bool) {
 	ok = true
 
 	if m.DefaultOutClient == nil {
 		m.DefaultOutClient = v2ray_simple.DirectClient
 	}
 
-	for i, l := range conf {
+	for _, l := range conf {
+		if l.Uuid == "" && m.DefaultUUID != "" {
+			l.Uuid = m.DefaultUUID
+		}
+
 		inServer, err := proxy.NewServer(l)
 		if err != nil {
-			log.Println("can not create inServer: ", i, err)
+
+			if ce := utils.CanLogErr("Can not create listen server"); ce != nil {
+				ce.Write(zap.Error(err))
+			}
 			ok = false
 			continue
 		}
-		lis := v2ray_simple.ListenSer(inServer, m.DefaultOutClient, &m.RoutingEnv, &m.GlobalInfo)
-		if lis != nil {
-			m.ListenCloserList = append(m.ListenCloserList, lis)
-			m.AllServers = append(m.AllServers, inServer)
 
+		if hot {
+			lis := v2ray_simple.ListenSer(inServer, m.DefaultOutClient, &m.RoutingEnv, &m.GlobalInfo)
+			if lis != nil {
+				m.ListenCloserList = append(m.ListenCloserList, lis)
+				m.AllServers = append(m.AllServers, inServer)
+
+			} else {
+				ok = false
+			}
 		} else {
-			ok = false
+			m.AllServers = append(m.AllServers, inServer)
 		}
-
 	}
 
 	return
 }
 
+// delete and stop the client
 func (m *M) HotDeleteClient(index int) {
 	if index < 0 || index >= len(m.AllClients) {
 		return
@@ -88,6 +100,7 @@ func (m *M) HotDeleteClient(index int) {
 	m.AllClients = utils.TrimSlice(m.AllClients, index)
 }
 
+// delete and close the server
 func (m *M) HotDeleteServer(index int) {
 	if index < 0 || index >= len(m.ListenCloserList) {
 		return
@@ -190,7 +203,7 @@ func (m *M) HotLoadDialUrl(theUrlStr string, format int) error {
 		return err
 	}
 
-	if !m.HotLoadDialConf("", []*proxy.DialConf{dc}) {
+	if !m.LoadDialConf([]*proxy.DialConf{dc}) {
 		return utils.ErrFailed
 	}
 	return nil
@@ -219,7 +232,7 @@ func (m *M) HotLoadListenUrl(theUrlStr string, format int) error {
 		fmt.Printf("parse url step 2 failed %v\n", err)
 		return err
 	}
-	if !m.HotLoadListenConf([]*proxy.ListenConf{lc}) {
+	if !m.LoadListenConf([]*proxy.ListenConf{lc}, true) {
 		return utils.ErrFailed
 	}
 	return nil
diff --git a/machine/machine.go b/machine/machine.go
index 04422a4..df3f638 100644
--- a/machine/machine.go
+++ b/machine/machine.go
@@ -11,13 +11,16 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"strings"
 
 	"github.com/e1732a364fed/v2ray_simple"
+	"github.com/e1732a364fed/v2ray_simple/httpLayer"
 	"github.com/e1732a364fed/v2ray_simple/proxy"
 )
 
 type M struct {
 	ApiServerConf
+	DefaultUUID string
 
 	v2ray_simple.GlobalInfo
 
@@ -44,7 +47,21 @@ func New() *M {
 	return m
 }
 
-func (m *M) Cleanup() {
+func (m *M) Start() {
+	if (m.DefaultOutClient != nil) && (len(m.AllServers) > 0) {
+		for _, inServer := range m.AllServers {
+			lis := v2ray_simple.ListenSer(inServer, m.DefaultOutClient, &m.RoutingEnv, &m.GlobalInfo)
+
+			if lis != nil {
+				m.ListenCloserList = append(m.ListenCloserList, lis)
+			}
+		}
+
+	}
+
+}
+
+func (m *M) Stop() {
 
 	for _, ser := range m.AllServers {
 		if ser != nil {
@@ -60,6 +77,32 @@ func (m *M) Cleanup() {
 
 }
 
+func (m *M) SetDefaultDirectClient() {
+	m.AllClients = append(m.AllClients, v2ray_simple.DirectClient)
+	m.DefaultOutClient = v2ray_simple.DirectClient
+
+	m.RoutingEnv.SetClient("direct", v2ray_simple.DirectClient)
+}
+
+// 将fallback配置中的@转化成实际对应的server的地址
+func (m *M) ParseFallbacksAtSymbol(fs []*httpLayer.FallbackConf) {
+	for _, fbConf := range fs {
+		if fbConf.Dest == nil {
+			continue
+		}
+		if deststr, ok := fbConf.Dest.(string); ok && strings.HasPrefix(deststr, "@") {
+			for _, s := range m.AllServers {
+				if s.GetTag() == deststr[1:] {
+					//log.Println("got tag fallback dest, will set to ", s.AddrStr())
+					fbConf.Dest = s.AddrStr()
+				}
+			}
+
+		}
+
+	}
+}
+
 func (m *M) HasProxyRunning() bool {
 	return len(m.ListenCloserList) > 0
 }