diff --git a/pro/comm.go b/pro/comm.go
index dc10001..ec1f661 100644
--- a/pro/comm.go
+++ b/pro/comm.go
@@ -141,9 +141,19 @@ func RedisDel() {
 	m_redis_db.Del(m_md5_tun_key)
 }
 
+func GetUDPLocalIPPort(level string) (string, int) {
+	conn, err := net.Dial(level, "ifconfig.co:80")
+	if err != nil {
+		return "", 0
+	}
+	defer conn.Close()
+
+	return conn.LocalAddr().(*net.UDPAddr).IP.String(), conn.LocalAddr().(*net.UDPAddr).Port
+}
+
 func GetUDPAddr() (conn *net.UDPConn, addr tun.AddrType) {
-	addr.LocalIPv4, _ = utils.GetUDPLocalIPPort("udp4")
-	addr.IPv6, _ = utils.GetUDPLocalIPPort("udp6")
+	addr.LocalIPv4, _ = GetUDPLocalIPPort("udp4")
+	addr.IPv6, _ = GetUDPLocalIPPort("udp6")
 
 	var err error
 
diff --git a/pro/local.go b/pro/local.go
index da61ad8..7509e15 100644
--- a/pro/local.go
+++ b/pro/local.go
@@ -23,7 +23,7 @@ func GetLocalQuicConn(conn *net.UDPConn, addr *tun.AddrType, count int) (*tun.Tu
 	var tun_active *tun.TunActive
 	var tun_passive *tun.TunPassive
 
-	SessionID := string(utils.RandomBytes(24))
+	SessionID := string(go2.RandomBytes(24))
 	utils.Log().DebugF("会话ID: %s", SessionID)
 
 	redisJson := RedisJsonType{
diff --git a/ui2/ui.go b/ui2/ui.go
index 82d7bc0..6bdee95 100644
--- a/ui2/ui.go
+++ b/ui2/ui.go
@@ -10,7 +10,6 @@ import (
 	"goodlink/config"
 	"goodlink/pro"
 	_ "goodlink/pro"
-	"goodlink/utils"
 
 	_ "embed"
 	_ "net/http/pprof"
@@ -47,7 +46,7 @@ func GetMainUI(myWindow *fyne.Window) *fyne.Container {
 	}
 
 	m_button_key_create = widget.NewButton("生成密钥", func() {
-		m_validated_key.SetText(string(utils.RandomBytes(24)))
+		m_validated_key.SetText(string(go2.RandomBytes(24)))
 	})
 	key_copy_button := widget.NewButton("复制密钥", func() {
 		clipboard.WriteAll(m_validated_key.Text)
diff --git a/utils/net.go b/utils/net.go
deleted file mode 100644
index e517e8f..0000000
--- a/utils/net.go
+++ /dev/null
@@ -1,51 +0,0 @@
-package utils
-
-import (
-	"crypto/tls"
-	"io"
-	"net"
-	"net/http"
-	"strconv"
-	"strings"
-	"time"
-)
-
-func GetUDPLocalIPPort(level string) (string, int) {
-	conn, err := net.Dial(level, "ifconfig.co:80")
-	if err != nil {
-		return "", 0
-	}
-	defer conn.Close()
-
-	return conn.LocalAddr().(*net.UDPAddr).IP.String(), conn.LocalAddr().(*net.UDPAddr).Port
-}
-
-func GetTCPWanIPv4Port(dialer *net.Dialer) (string, int) {
-	var res []byte
-	var err error
-	var resp *http.Response
-
-	client := &http.Client{
-		Transport: &http.Transport{
-			DialContext: dialer.DialContext,
-			TLSClientConfig: &tls.Config{
-				InsecureSkipVerify: true, // 跳过证书验证
-			},
-		},
-		Timeout: 3 * time.Second,
-	}
-	if resp, err = client.Get("https://goodlink.kony.vip/ip"); err != nil {
-		return "", 0
-	}
-	defer resp.Body.Close()
-
-	if res, err = io.ReadAll(resp.Body); err != nil {
-		return "", 0
-	}
-
-	localAddr := string(res)
-
-	ip := strings.Split(localAddr, ":")[0]
-	port, _ := strconv.Atoi(strings.Split(localAddr, ":")[1])
-	return ip, port
-}
diff --git a/utils/tools.go b/utils/tools.go
deleted file mode 100644
index 87c7ab0..0000000
--- a/utils/tools.go
+++ /dev/null
@@ -1,20 +0,0 @@
-package utils
-
-import (
-	"crypto/rand"
-	"math/big"
-)
-
-func RandomBytes(length int) []byte {
-	bytes := make([]byte, length)
-	charset := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
-	for i := 0; i < length; {
-		bint, err := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
-		if err != nil {
-			return nil
-		}
-		bytes[i] = charset[bint.Int64()]
-		i++
-	}
-	return bytes
-}