diff --git a/code/client/global/conf.go b/code/client/global/conf.go
index aec1256..29bd2de 100644
--- a/code/client/global/conf.go
+++ b/code/client/global/conf.go
@@ -4,6 +4,7 @@ import (
 	"crypto/md5"
 	"natpass/code/utils"
 	"os"
+	"time"
 
 	"github.com/lwch/runtime"
 	"gopkg.in/yaml.v2"
@@ -22,14 +23,16 @@ type Tunnel struct {
 
 // Configure client configure
 type Configure struct {
-	ID        string
-	Server    string
-	Enc       [md5.Size]byte
-	Links     int
-	LogDir    string
-	LogSize   utils.Bytes
-	LogRotate int
-	Tunnels   []Tunnel
+	ID           string
+	Server       string
+	Enc          [md5.Size]byte
+	Links        int
+	LogDir       string
+	LogSize      utils.Bytes
+	LogRotate    int
+	ReadTimeout  time.Duration
+	WriteTimeout time.Duration
+	Tunnels      []Tunnel
 }
 
 // LoadConf load configure file
@@ -38,8 +41,12 @@ func LoadConf(dir string) *Configure {
 		ID     string `yaml:"id"`
 		Server string `yaml:"server"`
 		Secret string `yaml:"secret"`
-		Links  int    `yaml:"links"`
-		Log    struct {
+		Link   struct {
+			Connections  int           `yaml:"connections"`
+			ReadTimeout  time.Duration `yaml:"read_timeout"`
+			WriteTimeout time.Duration `yaml:"write_timeout"`
+		} `yaml:"link"`
+		Log struct {
 			Dir    string      `yaml:"dir"`
 			Size   utils.Bytes `yaml:"size"`
 			Rotate int         `yaml:"rotate"`
@@ -56,17 +63,25 @@ func LoadConf(dir string) *Configure {
 		}
 		cfg.Tunnel[i] = t
 	}
-	if cfg.Links <= 0 {
-		cfg.Links = 3
+	if cfg.Link.Connections <= 0 {
+		cfg.Link.Connections = 3
+	}
+	if cfg.Link.ReadTimeout <= 0 {
+		cfg.Link.ReadTimeout = 5 * time.Second
+	}
+	if cfg.Link.WriteTimeout <= 0 {
+		cfg.Link.WriteTimeout = 5 * time.Second
 	}
 	return &Configure{
-		ID:        cfg.ID,
-		Server:    cfg.Server,
-		Enc:       md5.Sum([]byte(cfg.Secret)),
-		Links:     cfg.Links,
-		LogDir:    cfg.Log.Dir,
-		LogSize:   cfg.Log.Size,
-		LogRotate: cfg.Log.Rotate,
-		Tunnels:   cfg.Tunnel,
+		ID:           cfg.ID,
+		Server:       cfg.Server,
+		Enc:          md5.Sum([]byte(cfg.Secret)),
+		Links:        cfg.Link.Connections,
+		ReadTimeout:  cfg.Link.ReadTimeout,
+		WriteTimeout: cfg.Link.WriteTimeout,
+		LogDir:       cfg.Log.Dir,
+		LogSize:      cfg.Log.Size,
+		LogRotate:    cfg.Log.Rotate,
+		Tunnels:      cfg.Tunnel,
 	}
 }
diff --git a/code/client/global/constants.go b/code/client/global/constants.go
deleted file mode 100644
index 0a6b8af..0000000
--- a/code/client/global/constants.go
+++ /dev/null
@@ -1,8 +0,0 @@
-package global
-
-import "time"
-
-const (
-	ReadTimeout  = 5 * time.Second
-	WriteTimeout = 5 * time.Second
-)
diff --git a/code/client/pool/conn.go b/code/client/pool/conn.go
index 468e101..17d786a 100644
--- a/code/client/pool/conn.go
+++ b/code/client/pool/conn.go
@@ -2,7 +2,6 @@ package pool
 
 import (
 	"context"
-	"natpass/code/client/global"
 	"natpass/code/network"
 	"strings"
 	"sync"
@@ -90,7 +89,7 @@ func (conn *Conn) loopRead(cancel context.CancelFunc) {
 	defer conn.Close()
 	defer cancel()
 	for {
-		msg, err := conn.conn.ReadMessage(global.ReadTimeout)
+		msg, err := conn.conn.ReadMessage(conn.parent.cfg.ReadTimeout)
 		if err != nil {
 			if strings.Contains(err.Error(), "i/o timeout") {
 				continue
@@ -117,7 +116,7 @@ func (conn *Conn) loopRead(cancel context.CancelFunc) {
 		}
 		select {
 		case ch <- msg:
-		case <-time.After(global.ReadTimeout):
+		case <-time.After(conn.parent.cfg.ReadTimeout):
 			logging.Error("write read channel for link %s timeouted", linkID)
 			if ch == conn.unknownRead {
 				continue
@@ -136,7 +135,7 @@ func (conn *Conn) loopWrite(cancel context.CancelFunc) {
 			return
 		}
 		msg.From = conn.ID
-		err := conn.conn.WriteMessage(msg, global.WriteTimeout)
+		err := conn.conn.WriteMessage(msg, conn.parent.cfg.WriteTimeout)
 		if err == nil {
 			continue
 		}
diff --git a/code/client/pool/send.go b/code/client/pool/send.go
index 6b99bfe..b753b5f 100644
--- a/code/client/pool/send.go
+++ b/code/client/pool/send.go
@@ -26,7 +26,7 @@ func (conn *Conn) SendConnectReq(id string, cfg global.Tunnel) {
 	}
 	select {
 	case conn.write <- &msg:
-	case <-time.After(global.WriteTimeout):
+	case <-time.After(conn.parent.cfg.WriteTimeout):
 	}
 }
 
@@ -44,7 +44,7 @@ func (conn *Conn) SendConnectError(to, id, info string) {
 	}
 	select {
 	case conn.write <- &msg:
-	case <-time.After(global.WriteTimeout):
+	case <-time.After(conn.parent.cfg.WriteTimeout):
 	}
 }
 
@@ -61,7 +61,7 @@ func (conn *Conn) SendConnectOK(to, id string) {
 	}
 	select {
 	case conn.write <- &msg:
-	case <-time.After(global.WriteTimeout):
+	case <-time.After(conn.parent.cfg.WriteTimeout):
 	}
 }
 
@@ -77,7 +77,7 @@ func (conn *Conn) SendDisconnect(to, id string) {
 	}
 	select {
 	case conn.write <- &msg:
-	case <-time.After(global.WriteTimeout):
+	case <-time.After(conn.parent.cfg.WriteTimeout):
 	}
 }
 
@@ -99,7 +99,7 @@ func (conn *Conn) SendData(to, id string, data []byte) {
 	}
 	select {
 	case conn.write <- &msg:
-	case <-time.After(global.WriteTimeout):
+	case <-time.After(conn.parent.cfg.WriteTimeout):
 	}
 }
 
@@ -110,6 +110,6 @@ func (conn *Conn) SendKeepalive() {
 	msg.XType = network.Msg_keepalive
 	select {
 	case conn.write <- &msg:
-	case <-time.After(global.WriteTimeout):
+	case <-time.After(conn.parent.cfg.WriteTimeout):
 	}
 }
diff --git a/code/server/global/conf.go b/code/server/global/conf.go
index 7931908..ee25a5e 100644
--- a/code/server/global/conf.go
+++ b/code/server/global/conf.go
@@ -4,6 +4,7 @@ import (
 	"crypto/md5"
 	"natpass/code/utils"
 	"os"
+	"time"
 
 	"github.com/lwch/runtime"
 	"gopkg.in/yaml.v2"
@@ -11,13 +12,15 @@ import (
 
 // Configure server configure
 type Configure struct {
-	Listen    uint16
-	Enc       [md5.Size]byte
-	TLSKey    string
-	TLSCrt    string
-	LogDir    string
-	LogSize   utils.Bytes
-	LogRotate int
+	Listen       uint16
+	Enc          [md5.Size]byte
+	TLSKey       string
+	TLSCrt       string
+	ReadTimeout  time.Duration
+	WriteTimeout time.Duration
+	LogDir       string
+	LogSize      utils.Bytes
+	LogRotate    int
 }
 
 // LoadConf load configure file
@@ -25,7 +28,11 @@ func LoadConf(dir string) *Configure {
 	var cfg struct {
 		Listen uint16 `yaml:"listen"`
 		Secret string `yaml:"secret"`
-		Log    struct {
+		Link   struct {
+			ReadTimeout  time.Duration `yaml:"read_timeout"`
+			WriteTimeout time.Duration `yaml:"write_timeout"`
+		} `yaml:"link"`
+		Log struct {
 			Dir    string      `yaml:"dir"`
 			Size   utils.Bytes `yaml:"size"`
 			Rotate int         `yaml:"rotate"`
@@ -40,12 +47,14 @@ func LoadConf(dir string) *Configure {
 	defer f.Close()
 	runtime.Assert(yaml.NewDecoder(f).Decode(&cfg))
 	return &Configure{
-		Listen:    cfg.Listen,
-		Enc:       md5.Sum([]byte(cfg.Secret)),
-		TLSKey:    cfg.TLS.Key,
-		TLSCrt:    cfg.TLS.Crt,
-		LogDir:    cfg.Log.Dir,
-		LogSize:   cfg.Log.Size,
-		LogRotate: cfg.Log.Rotate,
+		Listen:       cfg.Listen,
+		Enc:          md5.Sum([]byte(cfg.Secret)),
+		TLSKey:       cfg.TLS.Key,
+		TLSCrt:       cfg.TLS.Crt,
+		ReadTimeout:  cfg.Link.ReadTimeout,
+		WriteTimeout: cfg.Link.WriteTimeout,
+		LogDir:       cfg.Log.Dir,
+		LogSize:      cfg.Log.Size,
+		LogRotate:    cfg.Log.Rotate,
 	}
 }
diff --git a/code/server/global/constants.go b/code/server/global/constants.go
deleted file mode 100644
index 0a6b8af..0000000
--- a/code/server/global/constants.go
+++ /dev/null
@@ -1,8 +0,0 @@
-package global
-
-import "time"
-
-const (
-	ReadTimeout  = 5 * time.Second
-	WriteTimeout = 5 * time.Second
-)
diff --git a/code/server/handler/client.go b/code/server/handler/client.go
index 0428328..0844d1a 100644
--- a/code/server/handler/client.go
+++ b/code/server/handler/client.go
@@ -1,7 +1,6 @@
 package handler
 
 import (
-	"natpass/code/client/global"
 	"natpass/code/network"
 	"strings"
 	"sync"
@@ -44,7 +43,7 @@ func (c *client) run() {
 			c.parent.closeAll(c)
 			return
 		}
-		msg, err := c.c.ReadMessage(global.ReadTimeout)
+		msg, err := c.c.ReadMessage(c.parent.cfg.ReadTimeout)
 		if err != nil {
 			if strings.Contains(err.Error(), "i/o timeout") {
 				continue
@@ -58,7 +57,7 @@ func (c *client) run() {
 }
 
 func (c *client) writeMessage(msg *network.Msg) error {
-	return c.c.WriteMessage(msg, global.WriteTimeout)
+	return c.c.WriteMessage(msg, c.parent.cfg.WriteTimeout)
 }
 
 func (c *client) addLink(id string) {
@@ -93,7 +92,7 @@ func (c *client) close(id string) {
 			Id: id,
 		},
 	}
-	c.c.WriteMessage(&msg, global.WriteTimeout)
+	c.c.WriteMessage(&msg, c.parent.cfg.WriteTimeout)
 	c.Lock()
 	delete(c.links, id)
 	c.Unlock()
diff --git a/conf/client.yaml b/conf/client.yaml
index e221d3c..47e0d1d 100644
--- a/conf/client.yaml
+++ b/conf/client.yaml
@@ -1,7 +1,10 @@
 id: this               # 客户端ID
 server: 127.0.0.1:6154 # 服务器地址
-links: 3               # 与server的连接数
 secret: 0123456789     # 预共享密钥，必须与server端相同，否则握手失败
+link:
+  connections: 3    # 与server的连接数
+  read_timeout: 5s  # 读取数据包超时时间
+  write_timeout: 5s # 发送数据包超时时间
 log:
   dir: ./logs # 路径
   size: 50M   # 单个文件大小
diff --git a/conf/server.yaml b/conf/server.yaml
index 9c4b2e5..88c4fd0 100644
--- a/conf/server.yaml
+++ b/conf/server.yaml
@@ -1,5 +1,8 @@
 listen: 6154       # 监听端口号
 secret: 0123456789 # 预共享密钥
+link:
+  read_timeout: 5s  # 读取数据包超时时间
+  write_timeout: 5s # 发送数据包超时时间
 log:
   dir: ./logs # 路径
   size: 50M   # 单个文件大小