diff --git a/common/counter/conn.go b/common/counter/conn.go
index 8f9db03..e90c1ef 100644
--- a/common/counter/conn.go
+++ b/common/counter/conn.go
@@ -24,23 +24,23 @@ func NewConnCounter(conn net.Conn, s *TrafficStorage) net.Conn {
 		ExtendedConn: bufio.NewExtendedConn(conn),
 		storage:      s,
 		readFunc: func(n int64) {
-			s.DownCounter.Add(n)
+			s.UpCounter.Add(n)
 		},
 		writeFunc: func(n int64) {
-			s.UpCounter.Add(n)
+			s.DownCounter.Add(n)
 		},
 	}
 }
 
 func (c *ConnCounter) Read(b []byte) (n int, err error) {
 	n, err = c.ExtendedConn.Read(b)
-	c.storage.DownCounter.Store(int64(n))
+	c.storage.UpCounter.Store(int64(n))
 	return
 }
 
 func (c *ConnCounter) Write(b []byte) (n int, err error) {
 	n, err = c.ExtendedConn.Write(b)
-	c.storage.UpCounter.Store(int64(n))
+	c.storage.DownCounter.Store(int64(n))
 	return
 }
 
@@ -50,7 +50,7 @@ func (c *ConnCounter) ReadBuffer(buffer *buf.Buffer) error {
 		return err
 	}
 	if buffer.Len() > 0 {
-		c.storage.DownCounter.Add(int64(buffer.Len()))
+		c.storage.UpCounter.Add(int64(buffer.Len()))
 	}
 	return nil
 }
@@ -62,7 +62,7 @@ func (c *ConnCounter) WriteBuffer(buffer *buf.Buffer) error {
 		return err
 	}
 	if dataLen > 0 {
-		c.storage.UpCounter.Add(dataLen)
+		c.storage.DownCounter.Add(dataLen)
 	}
 	return nil
 }
@@ -95,10 +95,10 @@ func NewPacketConnCounter(conn network.PacketConn, s *TrafficStorage) network.Pa
 		PacketConn: conn,
 		storage:    s,
 		readFunc: func(n int64) {
-			s.DownCounter.Add(n)
+			s.UpCounter.Add(n)
 		},
 		writeFunc: func(n int64) {
-			s.UpCounter.Add(n)
+			s.DownCounter.Add(n)
 		},
 	}
 }
@@ -108,7 +108,7 @@ func (p *PacketConnCounter) ReadPacket(buff *buf.Buffer) (destination M.Socksadd
 	if err != nil {
 		return
 	}
-	p.storage.DownCounter.Add(int64(buff.Len()))
+	p.storage.UpCounter.Add(int64(buff.Len()))
 	return
 }
 
@@ -119,7 +119,7 @@ func (p *PacketConnCounter) WritePacket(buff *buf.Buffer, destination M.Socksadd
 		return
 	}
 	if n > 0 {
-		p.storage.UpCounter.Add(int64(n))
+		p.storage.DownCounter.Add(int64(n))
 	}
 	return
 }
diff --git a/conf/node.go b/conf/node.go
index 9a5d815..aa00ddd 100644
--- a/conf/node.go
+++ b/conf/node.go
@@ -33,9 +33,9 @@ type Options struct {
 	CertConfig  *CertConfig  `json:"CertConfig"`
 }
 
-func (n *NodeConfig) UnmarshalJSON(b []byte) (err error) {
+func (n *NodeConfig) UnmarshalJSON(data []byte) (err error) {
 	r := rawNodeConfig{}
-	err = json.Unmarshal(b, &r)
+	err = json.Unmarshal(data, &r)
 	if err != nil {
 		return err
 	}
@@ -48,14 +48,14 @@ func (n *NodeConfig) UnmarshalJSON(b []byte) (err error) {
 		n.ApiConfig = ApiConfig{
 			Timeout: 30,
 		}
-		err = json.Unmarshal(b, &n.ApiConfig)
+		err = json.Unmarshal(data, &n.ApiConfig)
 		if err != nil {
 			return
 		}
 	}
-
 	if r.OptRaw != nil {
-		err = json.Unmarshal(*r.OptRaw, &n.Options)
+		data = *r.OptRaw
+		err = json.Unmarshal(data, &n.Options)
 		if err != nil {
 			return
 		}
@@ -65,18 +65,18 @@ func (n *NodeConfig) UnmarshalJSON(b []byte) (err error) {
 			ListenIP: "0.0.0.0",
 			SendIP:   "0.0.0.0",
 		}
-		err = json.Unmarshal(b, &n.Options)
+		err = json.Unmarshal(data, &n.Options)
 		if err != nil {
 			return
 		}
-		switch n.Options.Core {
-		case "xray":
-			n.Options.XrayOptions = NewXrayOptions()
-			return json.Unmarshal(b, n.Options.XrayOptions)
-		case "sing":
-			n.Options.SingOptions = NewSingOptions()
-			return json.Unmarshal(b, n.Options.SingOptions)
-		}
+	}
+	switch n.Options.Core {
+	case "xray":
+		n.Options.XrayOptions = NewXrayOptions()
+		return json.Unmarshal(data, n.Options.XrayOptions)
+	case "sing":
+		n.Options.SingOptions = NewSingOptions()
+		return json.Unmarshal(data, n.Options.SingOptions)
 	}
 	return
 }
diff --git a/conf/sing.go b/conf/sing.go
index cdf4159..9501e67 100644
--- a/conf/sing.go
+++ b/conf/sing.go
@@ -1,7 +1,12 @@
 package conf
 
+import (
+	"github.com/inazumav/sing-box/option"
+)
+
 type SingConfig struct {
 	LogConfig    SingLogConfig `json:"Log"`
+	NtpConfig    SingNtpConfig `json:"NTP"`
 	OriginalPath string        `json:"OriginalPath"`
 }
 
@@ -18,6 +23,11 @@ func NewSingConfig() *SingConfig {
 			Level:     "error",
 			Timestamp: true,
 		},
+		NtpConfig: SingNtpConfig{
+			Enable:     false,
+			Server:     "time.apple.com",
+			ServerPort: 0,
+		},
 	}
 }
 
@@ -25,10 +35,17 @@ type SingOptions struct {
 	EnableProxyProtocol      bool                   `json:"EnableProxyProtocol"`
 	TCPFastOpen              bool                   `json:"EnableTFO"`
 	SniffEnabled             bool                   `json:"EnableSniff"`
+	DomainStrategy           option.DomainStrategy  `json:"DomainStrategy"`
 	SniffOverrideDestination bool                   `json:"SniffOverrideDestination"`
 	FallBackConfigs          *FallBackConfigForSing `json:"FallBackConfigs"`
 }
 
+type SingNtpConfig struct {
+	Enable     bool   `json:"Enable"`
+	Server     string `json:"Server"`
+	ServerPort uint16 `json:"ServerPort"`
+}
+
 type FallBackConfigForSing struct {
 	// sing-box
 	FallBack        FallBack            `json:"FallBack"`
diff --git a/core/sing/node.go b/core/sing/node.go
index 8670c48..ea8bd69 100644
--- a/core/sing/node.go
+++ b/core/sing/node.go
@@ -38,6 +38,7 @@ func getInboundOptions(tag string, info *panel.NodeInfo, c *conf.Options) (optio
 		InboundOptions: option.InboundOptions{
 			SniffEnabled:             c.SingOptions.SniffEnabled,
 			SniffOverrideDestination: c.SingOptions.SniffOverrideDestination,
+			DomainStrategy:           c.SingOptions.DomainStrategy,
 		},
 	}
 	var tls option.InboundTLSOptions
@@ -86,33 +87,43 @@ func getInboundOptions(tag string, info *panel.NodeInfo, c *conf.Options) (optio
 		case "tcp":
 			t.Type = ""
 		case "ws":
-			network := WsNetworkConfig{}
-			err := json.Unmarshal(n.NetworkSettings, &network)
-			if err != nil {
-				return option.Inbound{}, fmt.Errorf("decode NetworkSettings error: %s", err)
-			}
-			var u *url.URL
-			u, err = url.Parse(network.Path)
-			if err != nil {
-				return option.Inbound{}, fmt.Errorf("parse path error: %s", err)
-			}
-			ed, _ := strconv.Atoi(u.Query().Get("ed"))
-			h := make(map[string]option.Listable[string], len(network.Headers))
-			for k, v := range network.Headers {
-				h[k] = option.Listable[string]{
-					v,
+			var (
+				path    string
+				ed      int
+				headers map[string]option.Listable[string]
+			)
+			if len(n.NetworkSettings) != 0 {
+				network := WsNetworkConfig{}
+				err := json.Unmarshal(n.NetworkSettings, &network)
+				if err != nil {
+					return option.Inbound{}, fmt.Errorf("decode NetworkSettings error: %s", err)
+				}
+				var u *url.URL
+				u, err = url.Parse(network.Path)
+				if err != nil {
+					return option.Inbound{}, fmt.Errorf("parse path error: %s", err)
+				}
+				path = u.Path
+				ed, _ = strconv.Atoi(u.Query().Get("ed"))
+				headers = make(map[string]option.Listable[string], len(network.Headers))
+				for k, v := range network.Headers {
+					headers[k] = option.Listable[string]{
+						v,
+					}
 				}
 			}
 			t.WebsocketOptions = option.V2RayWebsocketOptions{
-				Path:                u.Path,
+				Path:                path,
 				EarlyDataHeaderName: "Sec-WebSocket-Protocol",
 				MaxEarlyData:        uint32(ed),
-				Headers:             h,
+				Headers:             headers,
 			}
 		case "grpc":
-			err := json.Unmarshal(n.NetworkSettings, &t.GRPCOptions)
-			if err != nil {
-				return option.Inbound{}, fmt.Errorf("decode NetworkSettings error: %s", err)
+			if len(n.NetworkSettings) != 0 {
+				err := json.Unmarshal(n.NetworkSettings, &t.GRPCOptions)
+				if err != nil {
+					return option.Inbound{}, fmt.Errorf("decode NetworkSettings error: %s", err)
+				}
 			}
 		}
 		if info.Type == "vless" {
diff --git a/core/sing/sing.go b/core/sing/sing.go
index 30bece9..8c50855 100644
--- a/core/sing/sing.go
+++ b/core/sing/sing.go
@@ -48,7 +48,7 @@ func New(c *conf.CoreConfig) (vCore.Core, error) {
 			return nil, fmt.Errorf("open original config error: %s", err)
 		}
 		defer f.Close()
-		err = json.NewDecoder(f).Decode(options)
+		err = json.NewDecoder(f).Decode(&options)
 		if err != nil {
 			return nil, fmt.Errorf("decode original config error: %s", err)
 		}
@@ -59,6 +59,14 @@ func New(c *conf.CoreConfig) (vCore.Core, error) {
 		Timestamp: c.SingConfig.LogConfig.Timestamp,
 		Output:    c.SingConfig.LogConfig.Output,
 	}
+	options.NTP = &option.NTPOptions{
+		Enabled:       c.SingConfig.NtpConfig.Enable,
+		WriteToSystem: true,
+		ServerOptions: option.ServerOptions{
+			Server:     c.SingConfig.NtpConfig.Server,
+			ServerPort: c.SingConfig.NtpConfig.ServerPort,
+		},
+	}
 	ctx := context.Background()
 	ctx = pause.ContextWithDefaultManager(ctx)
 	createdAt := time.Now()
diff --git a/core/xray/inbound.go b/core/xray/inbound.go
index 79268d3..68e9f52 100644
--- a/core/xray/inbound.go
+++ b/core/xray/inbound.go
@@ -22,7 +22,7 @@ func buildInbound(option *conf.Options, nodeInfo *panel.NodeInfo, tag string) (*
 	var err error
 	var network string
 	switch nodeInfo.Type {
-	case "v2ray":
+	case "vmess", "vless":
 		err = buildV2ray(option, nodeInfo, in)
 		network = nodeInfo.VAllss.Network
 	case "trojan":
diff --git a/example/config.json b/example/config.json
index 3d087f7..51ee651 100644
--- a/example/config.json
+++ b/example/config.json
@@ -16,6 +16,13 @@
 
         "Level": "error",
         "Timestamp": true
+      },
+      "NTP": {
+        // 同 SingBox ntp 部分配置
+        // VMess VLESS 建议开启
+        "Enable": true,
+        "Server":     "time.apple.com",
+        "ServerPort": 0
       }
       // More
     },
@@ -56,7 +63,12 @@
       // 开启 Proxy Protocol，参见 https://github.com/haproxy/haproxy/blob/master/doc/proxy-protocol.txt
       "EnableProxyProtocol": false,
       // 开启 TCP Fast Open
-      "EnableTFO": true
+      "EnableTFO": true,
+
+      // 设置 Domain Strategy
+      // 可选 prefer_ipv4 / prefer_ipv6 / ipv4_only / ipv6_only
+      "DomainStrategy": "ipv4_only",
+
       // More
     }
     /*,
@@ -74,6 +86,7 @@
             "Core": "sing",
             "EnableProxyProtocol": true,
             "EnableTFO": true
+            "DomainStrategy": "ipv4_only",
           }
         },
         {