diff --git a/core/sing/hook.go b/core/sing/hook.go
index 428f633..e965c6c 100644
--- a/core/sing/hook.go
+++ b/core/sing/hook.go
@@ -42,6 +42,7 @@ func (h *HookServer) PreStart() error {
 }
 
 func (h *HookServer) RoutedConnection(_ context.Context, conn net.Conn, m adapter.InboundContext, _ adapter.Rule) (net.Conn, adapter.Tracker) {
+	t := &Tracker{l: func() {}}
 	l, err := limiter.GetLimiter(m.Inbound)
 	if err != nil {
 		log.Error("get limiter for ", m.Inbound, " error: ", err)
@@ -50,26 +51,24 @@ func (h *HookServer) RoutedConnection(_ context.Context, conn net.Conn, m adapte
 		conn.Close()
 		h.logger.Error("[", m.Inbound, "] ",
 			"Limited ", m.User, " access to ", m.Domain, " by domain rule")
-		return conn, &Tracker{l: func() {}}
+		return conn, t
 	}
 	if l.CheckProtocolRule(m.Protocol) {
 		conn.Close()
 		h.logger.Error("[", m.Inbound, "] ",
 			"Limited ", m.User, " use ", m.Domain, " by protocol rule")
-		return conn, &Tracker{l: func() {}}
+		return conn, t
 	}
 	ip := m.Source.Addr.String()
 	if b, r := l.CheckLimit(m.User, ip, true); r {
 		conn.Close()
 		h.logger.Error("[", m.Inbound, "] ", "Limited ", m.User, " by ip or conn")
-		return conn, &Tracker{l: func() {}}
+		return conn, t
 	} else if b != nil {
 		conn = rate.NewConnRateLimiter(conn, b)
 	}
-	t := &Tracker{
-		l: func() {
-			l.ConnLimiter.DelConnCount(m.User, ip)
-		},
+	t.l = func() {
+		l.ConnLimiter.DelConnCount(m.User, ip)
 	}
 	if c, ok := h.counter.Load(m.Inbound); ok {
 		return counter.NewConnCounter(conn, c.(*counter.TrafficCounter).GetCounter(m.User)), t
diff --git a/node/cert.go b/node/cert.go
index 9f9f3df..425efee 100644
--- a/node/cert.go
+++ b/node/cert.go
@@ -1,15 +1,22 @@
 package node
 
 import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/pem"
 	"fmt"
+	"math/big"
+	"os"
+	"time"
 
 	"github.com/InazumaV/V2bX/common/file"
-	"github.com/InazumaV/V2bX/node/lego"
 	log "github.com/sirupsen/logrus"
 )
 
 func (c *Controller) renewCertTask() error {
-	l, err := lego.New(c.CertConfig)
+	l, err := NewLego(c.CertConfig)
 	if err != nil {
 		log.WithField("tag", c.tag).Info("new lego error: ", err)
 		return nil
@@ -25,12 +32,10 @@ func (c *Controller) renewCertTask() error {
 func (c *Controller) requestCert() error {
 	switch c.CertConfig.CertMode {
 	case "reality", "none", "":
-		return nil
 	case "file":
 		if c.CertConfig.CertFile == "" || c.CertConfig.KeyFile == "" {
 			return fmt.Errorf("cert file path or key file path not exist")
 		}
-		return nil
 	case "dns", "http":
 		if c.CertConfig.CertFile == "" || c.CertConfig.KeyFile == "" {
 			return fmt.Errorf("cert file path or key file path not exist")
@@ -38,15 +43,74 @@ func (c *Controller) requestCert() error {
 		if file.IsExist(c.CertConfig.CertFile) && file.IsExist(c.CertConfig.KeyFile) {
 			return nil
 		}
-		l, err := lego.New(c.CertConfig)
+		l, err := NewLego(c.CertConfig)
 		if err != nil {
 			return fmt.Errorf("create lego object error: %s", err)
 		}
 		err = l.CreateCert()
 		if err != nil {
-			return fmt.Errorf("create cert error: %s", err)
+			return fmt.Errorf("create lego cert error: %s", err)
 		}
-		return nil
+	case "self":
+		if c.CertConfig.CertFile == "" || c.CertConfig.KeyFile == "" {
+			return fmt.Errorf("cert file path or key file path not exist")
+		}
+		if file.IsExist(c.CertConfig.CertFile) && file.IsExist(c.CertConfig.KeyFile) {
+			return nil
+		}
+		err := generateSelfSslCertificate(
+			c.CertConfig.CertDomain,
+			c.CertConfig.CertFile,
+			c.CertConfig.KeyFile)
+		if err != nil {
+			return fmt.Errorf("generate self cert error: %s", err)
+		}
+	default:
+		return fmt.Errorf("unsupported certmode: %s", c.CertConfig.CertMode)
 	}
-	return fmt.Errorf("unsupported certmode: %s", c.CertConfig.CertMode)
+	return nil
+}
+
+func generateSelfSslCertificate(domain, certPath, keyPath string) error {
+	key, _ := rsa.GenerateKey(rand.Reader, 2048)
+	tmpl := &x509.Certificate{
+		Version:      3,
+		SerialNumber: big.NewInt(time.Now().Unix()),
+		Subject: pkix.Name{
+			CommonName: domain,
+		},
+		DNSNames:              []string{domain},
+		BasicConstraintsValid: true,
+		KeyUsage:              x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
+		NotBefore:             time.Now(),
+		NotAfter:              time.Now().AddDate(30, 0, 0),
+	}
+	cert, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, key.Public(), key)
+	if err != nil {
+		return err
+	}
+	f, err := os.OpenFile(certPath, os.O_CREATE|os.O_RDWR, 0644)
+	if err != nil {
+		return err
+	}
+	err = pem.Encode(f, &pem.Block{
+		Type:  "CERTIFICATE",
+		Bytes: cert,
+	})
+	if err != nil {
+		return err
+	}
+	f, err = os.OpenFile(keyPath, os.O_CREATE|os.O_RDWR, 0644)
+	if err != nil {
+		return err
+	}
+	err = pem.Encode(f, &pem.Block{
+		Type:  "EC PRIVATE KEY",
+		Bytes: x509.MarshalPKCS1PrivateKey(key),
+	})
+	if err != nil {
+		return err
+	}
+	return nil
 }
diff --git a/node/cert_test.go b/node/cert_test.go
new file mode 100644
index 0000000..d26b478
--- /dev/null
+++ b/node/cert_test.go
@@ -0,0 +1,7 @@
+package node
+
+import "testing"
+
+func Test_generateSelfSslCertificate(t *testing.T) {
+	t.Log(generateSelfSslCertificate("domain.com", "1.pem", "1.key"))
+}
diff --git a/node/lego.go b/node/lego.go
new file mode 100644
index 0000000..e3af377
--- /dev/null
+++ b/node/lego.go
@@ -0,0 +1,272 @@
+package node
+
+import (
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/x509"
+	"encoding/pem"
+	"fmt"
+	"os"
+	"path"
+	"strings"
+	"time"
+
+	"github.com/go-acme/lego/v4/certificate"
+	"github.com/go-acme/lego/v4/challenge/http01"
+	"github.com/go-acme/lego/v4/providers/dns"
+	"github.com/go-acme/lego/v4/registration"
+	"github.com/goccy/go-json"
+
+	"github.com/InazumaV/V2bX/common/file"
+	"github.com/InazumaV/V2bX/conf"
+	"github.com/go-acme/lego/v4/certcrypto"
+	"github.com/go-acme/lego/v4/lego"
+)
+
+type Lego struct {
+	client *lego.Client
+	config *conf.CertConfig
+}
+
+func NewLego(config *conf.CertConfig) (*Lego, error) {
+	user, err := NewLegoUser(path.Join(path.Dir(config.CertFile),
+		"user",
+		fmt.Sprintf("user-%s.json", config.Email)),
+		config.Email)
+	if err != nil {
+		return nil, fmt.Errorf("create user error: %s", err)
+	}
+	c := lego.NewConfig(user)
+	//c.CADirURL = "http://192.168.99.100:4000/directory"
+	c.Certificate.KeyType = certcrypto.RSA2048
+	client, err := lego.NewClient(c)
+	if err != nil {
+		return nil, err
+	}
+	l := Lego{
+		client: client,
+		config: config,
+	}
+	err = l.SetProvider()
+	if err != nil {
+		return nil, fmt.Errorf("set provider error: %s", err)
+	}
+	return &l, nil
+}
+
+func checkPath(p string) error {
+	if !file.IsExist(path.Dir(p)) {
+		err := os.MkdirAll(path.Dir(p), 0755)
+		if err != nil {
+			return fmt.Errorf("create dir error: %s", err)
+		}
+	}
+	return nil
+}
+
+func (l *Lego) SetProvider() error {
+	switch l.config.CertMode {
+	case "http":
+		err := l.client.Challenge.SetHTTP01Provider(http01.NewProviderServer("", "80"))
+		if err != nil {
+			return err
+		}
+	case "dns":
+		for k, v := range l.config.DNSEnv {
+			os.Setenv(k, v)
+		}
+		p, err := dns.NewDNSChallengeProviderByName(l.config.Provider)
+		if err != nil {
+			return fmt.Errorf("create dns challenge provider error: %s", err)
+		}
+		err = l.client.Challenge.SetDNS01Provider(p)
+		if err != nil {
+			return fmt.Errorf("set dns provider error: %s", err)
+		}
+	}
+	return nil
+}
+
+func (l *Lego) CreateCert() (err error) {
+	request := certificate.ObtainRequest{
+		Domains: []string{l.config.CertDomain},
+	}
+	certificates, err := l.client.Certificate.Obtain(request)
+	if err != nil {
+		return fmt.Errorf("obtain certificate error: %s", err)
+	}
+	err = l.writeCert(certificates)
+	return nil
+}
+
+func (l *Lego) RenewCert() error {
+	file, err := os.ReadFile(l.config.CertFile)
+	if err != nil {
+		return fmt.Errorf("read cert file error: %s", err)
+	}
+	if e, err := l.CheckCert(file); !e {
+		return nil
+	} else if err != nil {
+		return fmt.Errorf("check cert error: %s", err)
+	}
+	res, err := l.client.Certificate.Renew(certificate.Resource{
+		Domain:      l.config.CertDomain,
+		Certificate: file,
+	}, false, false, "")
+	if err != nil {
+		return err
+	}
+	err = l.writeCert(res)
+	return nil
+}
+
+func (l *Lego) CheckCert(file []byte) (bool, error) {
+	cert, err := certcrypto.ParsePEMCertificate(file)
+	if err != nil {
+		return false, err
+	}
+	notAfter := int(time.Until(cert.NotAfter).Hours() / 24.0)
+	if notAfter > 30 {
+		return false, nil
+	}
+	return true, nil
+}
+func (l *Lego) parseParams(path string) string {
+	r := strings.NewReplacer("{domain}", l.config.CertDomain,
+		"{email}", l.config.Email)
+	return r.Replace(path)
+}
+func (l *Lego) writeCert(certificates *certificate.Resource) error {
+	err := checkPath(l.config.CertFile)
+	if err != nil {
+		return fmt.Errorf("check path error: %s", err)
+	}
+	err = os.WriteFile(l.parseParams(l.config.CertFile), certificates.Certificate, 0644)
+	if err != nil {
+		return err
+	}
+	err = checkPath(l.config.KeyFile)
+	if err != nil {
+		return fmt.Errorf("check path error: %s", err)
+	}
+	err = os.WriteFile(l.parseParams(l.config.KeyFile), certificates.PrivateKey, 0644)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+type User struct {
+	Email        string                 `json:"Email"`
+	Registration *registration.Resource `json:"Registration"`
+	key          crypto.PrivateKey
+	KeyEncoded   string `json:"Key"`
+}
+
+func (u *User) GetEmail() string {
+	return u.Email
+}
+func (u *User) GetRegistration() *registration.Resource {
+	return u.Registration
+}
+func (u *User) GetPrivateKey() crypto.PrivateKey {
+	return u.key
+}
+
+func NewLegoUser(path string, email string) (*User, error) {
+	var user User
+	if file.IsExist(path) {
+		err := user.Load(path)
+		if err != nil {
+			return nil, err
+		}
+		if user.Email != email {
+			user.Registration = nil
+			user.Email = email
+			err := registerUser(&user, path)
+			if err != nil {
+				return nil, err
+			}
+		}
+	} else {
+		user.Email = email
+		err := registerUser(&user, path)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return &user, nil
+}
+
+func registerUser(user *User, path string) error {
+	privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		return fmt.Errorf("generate key error: %s", err)
+	}
+	user.key = privateKey
+	c := lego.NewConfig(user)
+	client, err := lego.NewClient(c)
+	if err != nil {
+		return fmt.Errorf("create lego client error: %s", err)
+	}
+	reg, err := client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
+	if err != nil {
+		return err
+	}
+	user.Registration = reg
+	err = user.Save(path)
+	if err != nil {
+		return fmt.Errorf("save user error: %s", err)
+	}
+	return nil
+}
+
+func EncodePrivate(privKey *ecdsa.PrivateKey) (string, error) {
+	encoded, err := x509.MarshalECPrivateKey(privKey)
+	if err != nil {
+		return "", err
+	}
+	pemEncoded := pem.EncodeToMemory(&pem.Block{Type: "EC PRIVATE KEY", Bytes: encoded})
+	return string(pemEncoded), nil
+}
+func (u *User) Save(path string) error {
+	err := checkPath(path)
+	if err != nil {
+		return fmt.Errorf("check path error: %s", err)
+	}
+	u.KeyEncoded, _ = EncodePrivate(u.key.(*ecdsa.PrivateKey))
+	f, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
+	if err != nil {
+		return err
+	}
+	err = json.NewEncoder(f).Encode(u)
+	if err != nil {
+		return fmt.Errorf("marshal json error: %s", err)
+	}
+	u.KeyEncoded = ""
+	return nil
+}
+
+func (u *User) DecodePrivate(pemEncodedPriv string) (*ecdsa.PrivateKey, error) {
+	blockPriv, _ := pem.Decode([]byte(pemEncodedPriv))
+	x509EncodedPriv := blockPriv.Bytes
+	privateKey, err := x509.ParseECPrivateKey(x509EncodedPriv)
+	return privateKey, err
+}
+func (u *User) Load(path string) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return fmt.Errorf("open file error: %s", err)
+	}
+	err = json.NewDecoder(f).Decode(u)
+	if err != nil {
+		return fmt.Errorf("unmarshal json error: %s", err)
+	}
+	u.key, err = u.DecodePrivate(u.KeyEncoded)
+	if err != nil {
+		return fmt.Errorf("decode private key error: %s", err)
+	}
+	return nil
+}
diff --git a/node/lego/cert.go b/node/lego/cert.go
deleted file mode 100644
index 1f5a36e..0000000
--- a/node/lego/cert.go
+++ /dev/null
@@ -1,104 +0,0 @@
-package lego
-
-import (
-	"fmt"
-	"github.com/go-acme/lego/v4/certcrypto"
-	"github.com/go-acme/lego/v4/certificate"
-	"github.com/go-acme/lego/v4/challenge/http01"
-	"github.com/go-acme/lego/v4/providers/dns"
-	"os"
-	"strings"
-	"time"
-)
-
-func (l *Lego) SetProvider() error {
-	switch l.config.CertMode {
-	case "http":
-		err := l.client.Challenge.SetHTTP01Provider(http01.NewProviderServer("", "80"))
-		if err != nil {
-			return err
-		}
-	case "dns":
-		for k, v := range l.config.DNSEnv {
-			os.Setenv(k, v)
-		}
-		p, err := dns.NewDNSChallengeProviderByName(l.config.Provider)
-		if err != nil {
-			return fmt.Errorf("create dns challenge provider error: %s", err)
-		}
-		err = l.client.Challenge.SetDNS01Provider(p)
-		if err != nil {
-			return fmt.Errorf("set dns provider error: %s", err)
-		}
-	}
-	return nil
-}
-
-func (l *Lego) CreateCert() (err error) {
-	request := certificate.ObtainRequest{
-		Domains: []string{l.config.CertDomain},
-	}
-	certificates, err := l.client.Certificate.Obtain(request)
-	if err != nil {
-		return fmt.Errorf("obtain certificate error: %s", err)
-	}
-	err = l.writeCert(certificates)
-	return nil
-}
-
-func (l *Lego) RenewCert() error {
-	file, err := os.ReadFile(l.config.CertFile)
-	if err != nil {
-		return fmt.Errorf("read cert file error: %s", err)
-	}
-	if e, err := l.CheckCert(file); !e {
-		return nil
-	} else if err != nil {
-		return fmt.Errorf("check cert error: %s", err)
-	}
-	res, err := l.client.Certificate.Renew(certificate.Resource{
-		Domain:      l.config.CertDomain,
-		Certificate: file,
-	}, false, false, "")
-	if err != nil {
-		return err
-	}
-	err = l.writeCert(res)
-	return nil
-}
-
-func (l *Lego) CheckCert(file []byte) (bool, error) {
-	cert, err := certcrypto.ParsePEMCertificate(file)
-	if err != nil {
-		return false, err
-	}
-	notAfter := int(time.Until(cert.NotAfter).Hours() / 24.0)
-	if notAfter > 30 {
-		return false, nil
-	}
-	return true, nil
-}
-func (l *Lego) parseParams(path string) string {
-	r := strings.NewReplacer("{domain}", l.config.CertDomain,
-		"{email}", l.config.Email)
-	return r.Replace(path)
-}
-func (l *Lego) writeCert(certificates *certificate.Resource) error {
-	err := checkPath(l.config.CertFile)
-	if err != nil {
-		return fmt.Errorf("check path error: %s", err)
-	}
-	err = os.WriteFile(l.parseParams(l.config.CertFile), certificates.Certificate, 0644)
-	if err != nil {
-		return err
-	}
-	err = checkPath(l.config.KeyFile)
-	if err != nil {
-		return fmt.Errorf("check path error: %s", err)
-	}
-	err = os.WriteFile(l.parseParams(l.config.KeyFile), certificates.PrivateKey, 0644)
-	if err != nil {
-		return err
-	}
-	return nil
-}
diff --git a/node/lego/lego.go b/node/lego/lego.go
deleted file mode 100644
index 9a5c0d1..0000000
--- a/node/lego/lego.go
+++ /dev/null
@@ -1,53 +0,0 @@
-package lego
-
-import (
-	"fmt"
-	"os"
-	"path"
-
-	"github.com/InazumaV/V2bX/common/file"
-	"github.com/InazumaV/V2bX/conf"
-	"github.com/go-acme/lego/v4/certcrypto"
-	"github.com/go-acme/lego/v4/lego"
-)
-
-type Lego struct {
-	client *lego.Client
-	config *conf.CertConfig
-}
-
-func New(config *conf.CertConfig) (*Lego, error) {
-	user, err := NewUser(path.Join(path.Dir(config.CertFile),
-		"user",
-		fmt.Sprintf("user-%s.json", config.Email)),
-		config.Email)
-	if err != nil {
-		return nil, fmt.Errorf("create user error: %s", err)
-	}
-	c := lego.NewConfig(user)
-	//c.CADirURL = "http://192.168.99.100:4000/directory"
-	c.Certificate.KeyType = certcrypto.RSA2048
-	client, err := lego.NewClient(c)
-	if err != nil {
-		return nil, err
-	}
-	l := Lego{
-		client: client,
-		config: config,
-	}
-	err = l.SetProvider()
-	if err != nil {
-		return nil, fmt.Errorf("set provider error: %s", err)
-	}
-	return &l, nil
-}
-
-func checkPath(p string) error {
-	if !file.IsExist(path.Dir(p)) {
-		err := os.MkdirAll(path.Dir(p), 0755)
-		if err != nil {
-			return fmt.Errorf("create dir error: %s", err)
-		}
-	}
-	return nil
-}
diff --git a/node/lego/user.go b/node/lego/user.go
deleted file mode 100644
index d2d3b18..0000000
--- a/node/lego/user.go
+++ /dev/null
@@ -1,130 +0,0 @@
-package lego
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/x509"
-	"encoding/pem"
-	"fmt"
-	"os"
-
-	"github.com/InazumaV/V2bX/common/file"
-	"github.com/go-acme/lego/v4/lego"
-	"github.com/go-acme/lego/v4/registration"
-	"github.com/goccy/go-json"
-)
-
-type User struct {
-	Email        string                 `json:"Email"`
-	Registration *registration.Resource `json:"Registration"`
-	key          crypto.PrivateKey
-	KeyEncoded   string `json:"Key"`
-}
-
-func (u *User) GetEmail() string {
-	return u.Email
-}
-func (u *User) GetRegistration() *registration.Resource {
-	return u.Registration
-}
-func (u *User) GetPrivateKey() crypto.PrivateKey {
-	return u.key
-}
-
-func NewUser(path string, email string) (*User, error) {
-	var user User
-	if file.IsExist(path) {
-		err := user.Load(path)
-		if err != nil {
-			return nil, err
-		}
-		if user.Email != email {
-			user.Registration = nil
-			user.Email = email
-			err := registerUser(&user, path)
-			if err != nil {
-				return nil, err
-			}
-		}
-	} else {
-		user.Email = email
-		err := registerUser(&user, path)
-		if err != nil {
-			return nil, err
-		}
-	}
-	return &user, nil
-}
-
-func registerUser(user *User, path string) error {
-	privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		return fmt.Errorf("generate key error: %s", err)
-	}
-	user.key = privateKey
-	c := lego.NewConfig(user)
-	client, err := lego.NewClient(c)
-	if err != nil {
-		return fmt.Errorf("create lego client error: %s", err)
-	}
-	reg, err := client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
-	if err != nil {
-		return err
-	}
-	user.Registration = reg
-	err = user.Save(path)
-	if err != nil {
-		return fmt.Errorf("save user error: %s", err)
-	}
-	return nil
-}
-
-func EncodePrivate(privKey *ecdsa.PrivateKey) (string, error) {
-	encoded, err := x509.MarshalECPrivateKey(privKey)
-	if err != nil {
-		return "", err
-	}
-	pemEncoded := pem.EncodeToMemory(&pem.Block{Type: "EC PRIVATE KEY", Bytes: encoded})
-	return string(pemEncoded), nil
-}
-func (u *User) Save(path string) error {
-	err := checkPath(path)
-	if err != nil {
-		return fmt.Errorf("check path error: %s", err)
-	}
-	u.KeyEncoded, _ = EncodePrivate(u.key.(*ecdsa.PrivateKey))
-	f, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
-	if err != nil {
-		return err
-	}
-	err = json.NewEncoder(f).Encode(u)
-	if err != nil {
-		return fmt.Errorf("marshal json error: %s", err)
-	}
-	u.KeyEncoded = ""
-	return nil
-}
-
-func (u *User) DecodePrivate(pemEncodedPriv string) (*ecdsa.PrivateKey, error) {
-	blockPriv, _ := pem.Decode([]byte(pemEncodedPriv))
-	x509EncodedPriv := blockPriv.Bytes
-	privateKey, err := x509.ParseECPrivateKey(x509EncodedPriv)
-	return privateKey, err
-}
-func (u *User) Load(path string) error {
-	f, err := os.Open(path)
-	if err != nil {
-		return fmt.Errorf("open file error: %s", err)
-	}
-	err = json.NewDecoder(f).Decode(u)
-	if err != nil {
-		return fmt.Errorf("unmarshal json error: %s", err)
-	}
-	u.key, err = u.DecodePrivate(u.KeyEncoded)
-	if err != nil {
-		return fmt.Errorf("decode private key error: %s", err)
-	}
-	return nil
-}
diff --git a/node/lego/lego_test.go b/node/lego_test.go
similarity index 92%
rename from node/lego/lego_test.go
rename to node/lego_test.go
index 69b2eab..128014d 100644
--- a/node/lego/lego_test.go
+++ b/node/lego_test.go
@@ -1,4 +1,4 @@
-package lego
+package node
 
 import (
 	"log"
@@ -12,7 +12,7 @@ var l *Lego
 
 func init() {
 	var err error
-	l, err = New(&conf.CertConfig{
+	l, err = NewLego(&conf.CertConfig{
 		CertMode:   "dns",
 		Email:      "test@test.com",
 		CertDomain: "test.test.com",