diff --git a/config/config.go b/config/config.go
index ecf6652..925fbaa 100644
--- a/config/config.go
+++ b/config/config.go
@@ -37,3 +37,8 @@ type (
 		Mode string `json:",default=dev,options=[dev,test,prod]"`
 	}
 )
+
+// ShallLogDebug 是否应该打印 Debug 级别的日志，打印的首要条件是 nlog 的打印级别为 debug
+func ShallLogDebug(mode string) bool {
+	return mode == DevMode || mode == TestMode
+}
diff --git a/core/connection.go b/core/connection.go
index b47e8a7..97f6703 100644
--- a/core/connection.go
+++ b/core/connection.go
@@ -141,7 +141,10 @@ func (r *connection) write() {
 		close(r.chWrite)
 		_ = r.Close()
 
-		nlog.Debugf("[writeLoop] connection write goroutine exit, ConnID=%d, SessionUID=%s", r.ID(), r.session.UID())
+		if r.ngin.shallLogDebug() {
+			nlog.Debugf("%s [writeLoop] connection write goroutine exit, ConnID=%d, SessionUID=%s",
+				r.ngin.logPrefix(), r.ID(), r.session.UID())
+		}
 	}()
 
 	for {
@@ -150,13 +153,13 @@ func (r *connection) write() {
 			// marshal packet body (data)
 			if r.ngin.serializer == nil {
 				if _, ok := data.payload.([]byte); !ok {
-					nlog.Errorf("serializer is nil, but payload type not []byte")
+					nlog.Errorf("%s serializer is nil, but payload type not []byte", r.ngin.logPrefix())
 					break
 				}
 			} else {
 				payload, err := r.ngin.serializer.Marshal(data.payload)
 				if err != nil {
-					nlog.Errorf("message body marshal err: %v", err)
+					nlog.Errorf("%s message body marshal err: %v", r.ngin.logPrefix(), err)
 					break
 				}
 				data.payload = payload
@@ -166,21 +169,21 @@ func (r *connection) write() {
 			if pipe := r.ngin.pipeline; pipe != nil {
 				err := pipe.Outbound().Process(r, data)
 				if err != nil {
-					nlog.Errorf("pipeline err: %s", err.Error())
+					nlog.Errorf("%s pipeline err: %s", r.ngin.logPrefix(), err.Error())
 				}
 			}
 
 			// packet pack data
 			p, err := r.packer.Pack(data.header, data.payload.([]byte))
 			if err != nil {
-				nlog.Error(err.Error())
+				nlog.Errorf("%s pack err: %s", r.ngin.logPrefix(), err.Error())
 				break
 			}
 			r.chWrite <- p
 		case data := <-r.chWrite:
 			// 回写数据
 			if _, err := r.conn.Write(data); err != nil {
-				nlog.Error(err.Error())
+				nlog.Errorf("%s write data err: %s", r.ngin.logPrefix(), err.Error())
 				break
 			}
 			//nlog.Debugf("write data %v", data)
@@ -202,24 +205,25 @@ func (r *connection) read() {
 		n, err := r.conn.Read(buf)
 		//nlog.Debugf("receive data %v", buf[:n])
 		if err != nil {
-			nlog.Errorf("[readLoop] Read message error: %s, session will be closed immediately", err.Error())
+			nlog.Errorf("%s [readLoop] Read message error: %s, session will be closed immediately",
+				r.ngin.logPrefix(), err.Error())
 			return
 		}
 
 		if r.packer == nil {
-			nlog.Errorf("[readLoop] unexpected error: packer is nil")
+			nlog.Errorf("%s [readLoop] unexpected error: packer is nil", r.ngin.logPrefix())
 			return
 		}
 
 		// warning: 为性能考虑，复用slice处理数据，buf传入后必须要copy再处理
 		packets, err := r.packer.Unpack(buf[:n])
 		if err != nil {
-			nlog.Error(err.Error())
+			nlog.Errorf("%s unpack err: %s", r.ngin.logPrefix(), err.Error())
 		}
 		// packets 处理
 		for _, p := range packets {
 			if err := r.processPacket(p); err != nil {
-				nlog.Error(err.Error())
+				nlog.Errorf("%s process packet err: %s", r.ngin.logPrefix(), err.Error())
 				continue
 			}
 		}
@@ -249,7 +253,9 @@ func (r *connection) Close() error {
 	}
 	r.SetStatus(StatusClosed)
 
-	nlog.Debugf("close connection, ID: %d", r.ID())
+	if r.ngin.shallLogDebug() {
+		nlog.Debugf("%s close connection, ID: %d", r.ngin.logPrefix(), r.ID())
+	}
 
 	select {
 	case <-r.chDie:
diff --git a/core/engine.go b/core/engine.go
index 4d2b95f..e2f79d5 100644
--- a/core/engine.go
+++ b/core/engine.go
@@ -2,6 +2,7 @@ package core
 
 import (
 	"errors"
+	"fmt"
 	"git.noahlan.cn/noahlan/nnet/config"
 	conn2 "git.noahlan.cn/noahlan/nnet/conn"
 	"git.noahlan.cn/noahlan/nnet/entity"
@@ -15,10 +16,7 @@ import (
 	"log"
 	"net"
 	"net/http"
-	"os"
-	"os/signal"
 	"strings"
-	"syscall"
 	"time"
 )
 
@@ -34,9 +32,11 @@ func NotFoundHandler() Handler {
 type (
 	// engine TCP-engine
 	engine struct {
-		conf        config.EngineConf // conf 配置
-		middlewares []Middleware      // 中间件
-		routes      []Route           // 路由
+		conf               config.EngineConf // conf 配置
+		taskTimerPrecision time.Duration
+
+		middlewares []Middleware // 中间件
+		routes      []Route      // 路由
 		// handler 消息处理器
 		handler Handler
 		// dieChan 应用程序退出信号
@@ -49,8 +49,7 @@ type (
 
 		wsOpt wsOptions // websocket
 
-		taskTimerPrecision time.Duration
-		connManager        *conn2.Manager
+		connManager *conn2.Manager
 	}
 
 	wsOptions struct {
@@ -72,12 +71,19 @@ func newEngine(conf config.EngineConf) *engine {
 		taskTimerPrecision: conf.TaskTimerPrecision,
 		connManager:        conn2.NewManager(),
 	}
-
 	pool.InitPool(conf.Pool)
 
 	return s
 }
 
+func (ng *engine) shallLogDebug() bool {
+	return config.ShallLogDebug(ng.conf.Mode)
+}
+
+func (ng *engine) logPrefix() string {
+	return fmt.Sprintf("[NNet-%s]", ng.conf.Name)
+}
+
 func (ng *engine) use(middleware ...Middleware) {
 	ng.middlewares = append(ng.middlewares, middleware...)
 }
@@ -132,7 +138,9 @@ func (ng *engine) dial(addr string, router Router) (entity.NetworkEntity, error)
 	nlog.Must(err)
 
 	// 连接成功，客户端已启动
-	nlog.Infof("now connect to %s.", addr)
+	if ng.shallLogDebug() {
+		nlog.Debugf("now connect to %s.", addr)
+	}
 
 	return c, nil
 }
@@ -145,7 +153,7 @@ func (ng *engine) serve(router Router) error {
 	}
 	go scheduler.Schedule(ng.taskTimerPrecision)
 	defer func() {
-		nlog.Info("NNet is stopping...")
+		nlog.Infof("%s is stopping...", ng.logPrefix())
 
 		ng.shutdown()
 		scheduler.Close()
@@ -161,16 +169,6 @@ func (ng *engine) serve(router Router) error {
 		ng.listenAndServe()
 	}
 
-	sg := make(chan os.Signal)
-	signal.Notify(sg, syscall.SIGINT, syscall.SIGQUIT, syscall.SIGKILL, syscall.SIGTERM)
-
-	select {
-	case <-ng.dieChan:
-		nlog.Info("NNet will shutdown in a few seconds")
-	case s := <-sg:
-		nlog.Infof("NNet got signal: %s", s)
-	}
-
 	return nil
 }
 
@@ -186,7 +184,9 @@ func (ng *engine) listenAndServe() {
 	nlog.Must(err)
 
 	// 监听成功，服务已启动
-	nlog.Infof("now listening %s on %s.", ng.conf.Protocol, ng.conf.Addr)
+	if ng.shallLogDebug() {
+		nlog.Debugf("%s now listening %s at %s.", ng.logPrefix(), ng.conf.Protocol, ng.conf.Addr)
+	}
 	defer func() {
 		_ = listener.Close()
 		ng.close()
@@ -196,10 +196,10 @@ func (ng *engine) listenAndServe() {
 		conn, err := listener.Accept()
 		if err != nil {
 			if errors.Is(err, net.ErrClosed) {
-				nlog.Errorf("服务器网络错误 %+v", err)
+				nlog.Errorf("%s 服务器网络错误 %+v", ng.logPrefix(), err)
 				return
 			}
-			nlog.Errorf("监听错误 %v", err)
+			nlog.Errorf("%s 监听错误 %v", ng.logPrefix(), err)
 			continue
 		}
 
@@ -207,7 +207,7 @@ func (ng *engine) listenAndServe() {
 			ng.handle(conn)
 		})
 		if err != nil {
-			nlog.Errorf("submit conn pool err: %ng", err.Error())
+			nlog.Errorf("%s submit conn pool err: %ng", ng.logPrefix(), err.Error())
 			continue
 		}
 	}
@@ -215,6 +215,9 @@ func (ng *engine) listenAndServe() {
 
 func (ng *engine) listenAndServeWS() {
 	ng.setupWS()
+	if ng.shallLogDebug() {
+		nlog.Debugf("%s now listening websocket at %s.", ng.logPrefix(), ng.conf.Addr)
+	}
 	if err := http.ListenAndServe(ng.conf.Addr, nil); err != nil {
 		log.Fatal(err.Error())
 	}
@@ -222,6 +225,9 @@ func (ng *engine) listenAndServeWS() {
 
 func (ng *engine) listenAndServeWSTLS() {
 	ng.setupWS()
+	if ng.shallLogDebug() {
+		nlog.Debugf("%s now listening websocket with tls at %s.", ng.logPrefix(), ng.conf.Addr)
+	}
 	if err := http.ListenAndServeTLS(ng.conf.Addr, ng.wsOpt.TLSCertificate, ng.wsOpt.TLSKey, nil); err != nil {
 		log.Fatal(err.Error())
 	}
@@ -236,14 +242,14 @@ func (ng *engine) setupWS() {
 	http.HandleFunc("/"+strings.TrimPrefix(ng.wsOpt.WebsocketPath, "/"), func(w http.ResponseWriter, r *http.Request) {
 		conn, err := upgrade.Upgrade(w, r, nil)
 		if err != nil {
-			nlog.Errorf("Upgrade failure, URI=%ng, Error=%ng", r.RequestURI, err.Error())
+			nlog.Errorf("%s Upgrade failure, URI=%ng, Error=%ng", ng.logPrefix(), r.RequestURI, err.Error())
 			return
 		}
 		err = pool.Submit(func() {
 			ng.handleWS(conn)
 		})
 		if err != nil {
-			log.Fatalf("submit conn pool err: %ng", err.Error())
+			log.Fatalf("%s submit conn pool err: %v", ng.logPrefix(), err.Error())
 		}
 	})
 }