diff --git a/global/version.go b/global/version.go
index 487e4f6..df08f28 100644
--- a/global/version.go
+++ b/global/version.go
@@ -1,7 +1,7 @@
 package global
 
 const (
-	Version      = "v3.3.5"                                                      //当前版本号
-	Releasenotes = "优化并发逻辑,增加调试开关,增加识别web指纹"                   //版本说明
+	Version      = "v3.3.6"                                                      //当前版本号
+	Releasenotes = "优化并发逻辑,增加调试开关"                                               //版本说明
 	RepoUrl      = "https://api.github.com/repos/selinuxg/Golin/releases/latest" //仓库最新版本
 )
diff --git a/port/crack/ftp.go b/port/crack/ftp.go
index 46f2130..331ec6f 100644
--- a/port/crack/ftp.go
+++ b/port/crack/ftp.go
@@ -9,16 +9,6 @@ import (
 )
 
 func ftpcon(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-
 	c, err := ftp.Dial(fmt.Sprintf("%s:%d", ip, port), ftp.DialWithTimeout(time.Duration(timeout)*time.Second))
 	if err == nil {
 		err = c.Login(user, passwd)
diff --git a/port/crack/mysql.go b/port/crack/mysql.go
index d7eb958..268487e 100644
--- a/port/crack/mysql.go
+++ b/port/crack/mysql.go
@@ -10,15 +10,6 @@ import (
 )
 
 func mySql(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
 	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=%ds", user, passwd, ip, port, "mysql", timeout)
 	_, err := gorm.Open(mysql.Open(dsn), &gorm.Config{
 		Logger: logger.Default.LogMode(logger.Silent), // 设置日志级别为 silent
diff --git a/port/crack/oracle.go b/port/crack/oracle.go
index 4ebc488..1d937f2 100644
--- a/port/crack/oracle.go
+++ b/port/crack/oracle.go
@@ -10,16 +10,6 @@ import (
 )
 
 func oraclecon(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-
 	dataSourceName := fmt.Sprintf("oracle://%s:%s@%s:%d/orcl", user, passwd, ip, port)
 	db, err := sql.Open("oracle", dataSourceName)
 	if err == nil {
diff --git a/port/crack/pgsql.go b/port/crack/pgsql.go
index c63e8cc..64e810e 100644
--- a/port/crack/pgsql.go
+++ b/port/crack/pgsql.go
@@ -10,12 +10,6 @@ import (
 )
 
 func pgsql(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer done(ch, wg)
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
 	dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=postgres port=%d sslmode=disable  TimeZone=Asia/Shanghai connect_timeout=%d", ip, user, passwd, port, timeout)
 	_, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
 		Logger: logger.Default.LogMode(logger.Silent),
diff --git a/port/crack/rdp.go b/port/crack/rdp.go
index 18613e7..9c6e6a0 100644
--- a/port/crack/rdp.go
+++ b/port/crack/rdp.go
@@ -33,12 +33,6 @@ type Client struct {
 }
 
 func rdpcon(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer done(ch, wg)
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
 	glog.SetLevel(5) //禁止日志输出
 	logger := log.New(os.Stdout, "", 0)
 	glog.SetLogger(logger)
diff --git a/port/crack/redis.go b/port/crack/redis.go
index 3683403..ce0ae4e 100644
--- a/port/crack/redis.go
+++ b/port/crack/redis.go
@@ -11,16 +11,6 @@ import (
 var ctx = context.Background()
 
 func rediscon(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-
 	client := redis.NewClient(&redis.Options{
 		Addr:            fmt.Sprintf("%s:%d", ip, port),
 		Username:        user,
diff --git a/port/crack/run.go b/port/crack/run.go
index 3914b23..1312171 100644
--- a/port/crack/run.go
+++ b/port/crack/run.go
@@ -4,8 +4,10 @@ import (
 	"context"
 	"fmt"
 	"github.com/fatih/color"
+	"golin/global"
 	"strconv"
 	"sync"
+	"time"
 )
 
 // ConnectionFunc 定义一个函数类型
@@ -29,7 +31,7 @@ var connectionFuncs = map[string]ConnectionFunc{
 func Run(host, port string, Timeout, chanCount int, mode string) {
 	ch := make(chan struct{}, chanCount)
 	wg := sync.WaitGroup{}
-	ctx, cancel := context.WithCancel(context.Background())
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(Timeout))
 	defer cancel() //确保所有的goroutine都已经退出
 	newport, _ := strconv.Atoi(port)
 
@@ -41,7 +43,7 @@ func Run(host, port string, Timeout, chanCount int, mode string) {
 			ch <- struct{}{}
 			wg.Add(1)
 			if connFunc, ok := connectionFuncs[mode]; ok {
-				go connFunc(ctx, cancel, host, user, passwd, newport, Timeout, ch, &wg)
+				go crackOnce(ctx, cancel, host, user, passwd, newport, Timeout, ch, &wg, connFunc, mode)
 			} else {
 				wg.Done()
 				<-ch
@@ -53,6 +55,9 @@ func Run(host, port string, Timeout, chanCount int, mode string) {
 }
 
 func end(host, user, passwd string, port int, mode string) {
+	global.PrintLock.Lock()
+	defer global.PrintLock.Unlock()
+
 	fmt.Printf("\033[2K\r") // 擦除整行
 	fmt.Printf("\r| %-2s | %-15s | %-4d |%-6s|%-4s|%-50s \n",
 		fmt.Sprintf("%s", color.GreenString("%s", "✓")),
@@ -64,7 +69,28 @@ func end(host, user, passwd string, port int, mode string) {
 	)
 	fmt.Printf("\033[2K\r") // 擦除整行
 }
+
 func done(ch <-chan struct{}, wg *sync.WaitGroup) {
 	<-ch
 	wg.Done()
 }
+
+func crackOnce(ctx context.Context, cancel context.CancelFunc, host, user, passwd string, newport, timeout int, ch <-chan struct{}, wg *sync.WaitGroup, connFunc ConnectionFunc, key string) {
+	defer done(ch, wg)
+
+	hasDone := make(chan struct{}, 1)
+	go func() {
+		connFunc(ctx, cancel, host, user, passwd, newport, timeout, ch, wg)
+		hasDone <- struct{}{}
+	}()
+
+	select {
+	case <-hasDone:
+		return
+	case <-ctx.Done():
+		if global.Debug {
+			fmt.Println(key, host, user, passwd, "time out")
+		}
+		return
+	}
+}
diff --git a/port/crack/smb.go b/port/crack/smb.go
index 236ddec..3749469 100644
--- a/port/crack/smb.go
+++ b/port/crack/smb.go
@@ -7,16 +7,6 @@ import (
 )
 
 func smbcon(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-
 	options := smb.Options{
 		Host:        ip,
 		Port:        port,
diff --git a/port/crack/sqlserver.go b/port/crack/sqlserver.go
index 1b30df1..b245d03 100644
--- a/port/crack/sqlserver.go
+++ b/port/crack/sqlserver.go
@@ -10,16 +10,6 @@ import (
 )
 
 func sqlservercon(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-
 	dsn := fmt.Sprintf("sqlserver://%s:%s@%s:%d?database=master&timeout=%ds", user, passwd, ip, port, timeout)
 	_, err := gorm.Open(sqlserver.Open(dsn), &gorm.Config{
 		Logger: logger.Default.LogMode(logger.Silent),
diff --git a/port/crack/ssh.go b/port/crack/ssh.go
index fc387b5..1cfd667 100644
--- a/port/crack/ssh.go
+++ b/port/crack/ssh.go
@@ -9,15 +9,6 @@ import (
 )
 
 func SSH(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
 	configssh := &ssh.ClientConfig{
 		Timeout:         time.Duration(timeout) * time.Second, // ssh连接timeout时间
 		User:            user,
diff --git a/port/crack/telnet.go b/port/crack/telnet.go
index f6ea56f..ffd2b53 100644
--- a/port/crack/telnet.go
+++ b/port/crack/telnet.go
@@ -11,16 +11,6 @@ import (
 )
 
 func telnetcon(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-
 	conn, err := telnet.DialTimeout("tcp", fmt.Sprintf("%s:%d", ip, port), time.Duration(timeout))
 	if err != nil {
 		return
diff --git a/port/crack/tomcat.go b/port/crack/tomcat.go
index 0b0a85c..9a3a9fe 100644
--- a/port/crack/tomcat.go
+++ b/port/crack/tomcat.go
@@ -12,16 +12,6 @@ import (
 )
 
 func tomcat(ctx context.Context, cancel context.CancelFunc, ip, user, passwd string, port, timeout int, ch <-chan struct{}, wg *sync.WaitGroup) {
-	defer func() {
-		wg.Done()
-		<-ch
-	}()
-	select {
-	case <-ctx.Done():
-		return
-	default:
-	}
-
 	url := fmt.Sprintf("%s:%d", ip, port)
 	base64passwd := fmt.Sprintf("%s:%s", user, passwd)
 	base64passwd = base64.StdEncoding.EncodeToString([]byte(base64passwd))