diff --git a/sdk/android-ios/dns.go b/sdk/android-ios/dns.go
index abd843f..508e914 100644
--- a/sdk/android-ios/dns.go
+++ b/sdk/android-ios/dns.go
@@ -92,7 +92,7 @@ func (s *DNS) InitService() (err error) {
 		nil,
 		&net.Dialer{
 			Timeout:   5 * time.Second,
-			KeepAlive: 5 * time.Second,
+			KeepAlive: 2 * time.Second,
 		},
 	)
 	if err != nil {
@@ -133,7 +133,7 @@ func (s *DNS) StopService() {
 		if e != nil {
 			s.log.Printf("stop dns service crashed,%s", e)
 		} else {
-			s.log.Printf("service dns stoped")
+			s.log.Printf("service dns stopped")
 		}
 	}()
 	Stop(s.serviceKey)
diff --git a/sdk/android-ios/sdk.go b/sdk/android-ios/sdk.go
index f05b701..57ef6b4 100644
--- a/sdk/android-ios/sdk.go
+++ b/sdk/android-ios/sdk.go
@@ -85,8 +85,8 @@ func StartWithLog(serviceID, serviceArgsStr string, loggerCallback LogCallback)
 	nolog := app.Flag("nolog", "turn off logging").Default("false").Bool()
 	kcpArgs.Key = app.Flag("kcp-key", "pre-shared secret between client and server").Default("secrect").String()
 	kcpArgs.Crypt = app.Flag("kcp-method", "encrypt/decrypt method, can be: aes, aes-128, aes-192, salsa20, blowfish, twofish, cast5, 3des, tea, xtea, xor, sm4, none").Default("aes").Enum("aes", "aes-128", "aes-192", "salsa20", "blowfish", "twofish", "cast5", "3des", "tea", "xtea", "xor", "sm4", "none")
-	kcpArgs.Mode = app.Flag("kcp-mode", "profiles: fast3, fast2, fast, normal, manual").Default("fast").Enum("fast3", "fast2", "fast", "normal", "manual")
-	kcpArgs.MTU = app.Flag("kcp-mtu", "set maximum transmission unit for UDP packets").Default("450").Int()
+	kcpArgs.Mode = app.Flag("kcp-mode", "profiles: fast3, fast2, fast, normal, manual").Default("fast3").Enum("fast3", "fast2", "fast", "normal", "manual")
+	kcpArgs.MTU = app.Flag("kcp-mtu", "set maximum transmission unit for UDP packets").Default("1350").Int()
 	kcpArgs.SndWnd = app.Flag("kcp-sndwnd", "set send window size(num of packets)").Default("1024").Int()
 	kcpArgs.RcvWnd = app.Flag("kcp-rcvwnd", "set receive window size(num of packets)").Default("1024").Int()
 	kcpArgs.DataShard = app.Flag("kcp-ds", "set reed-solomon erasure coding - datashard").Default("10").Int()
diff --git a/services/http/http.go b/services/http/http.go
index 16ca2c4..405aaed 100644
--- a/services/http/http.go
+++ b/services/http/http.go
@@ -238,7 +238,7 @@ func (s *HTTP) StopService() {
 		if e != nil {
 			s.log.Printf("stop http(s) service crashed,%s", e)
 		} else {
-			s.log.Printf("service http(s) stoped")
+			s.log.Printf("service http(s) stopped")
 		}
 		s.basicAuth = utils.BasicAuth{}
 		s.cfg = HTTPArgs{}
@@ -425,7 +425,7 @@ func (s *HTTP) OutToTCP(useProxy bool, address string, inConn *net.Conn, req *ut
 		//https或者http,上级是代理,proxy需要转发
 		outConn.SetDeadline(time.Now().Add(time.Millisecond * time.Duration(*s.cfg.Timeout)))
 		//直连目标或上级非代理或非SNI,,清理HTTP头部的代理头信息
-		if !useProxy || *s.cfg.ParentType == "ssh" && !req.IsSNI {
+		if (!useProxy || *s.cfg.ParentType == "ssh") && !req.IsSNI {
 			_, err = outConn.Write(utils.RemoveProxyHeaders(req.HeadBuf))
 		} else {
 			_, err = outConn.Write(req.HeadBuf)
diff --git a/services/mux/mux_bridge.go b/services/mux/mux_bridge.go
index c3f76c6..c31c241 100644
--- a/services/mux/mux_bridge.go
+++ b/services/mux/mux_bridge.go
@@ -81,7 +81,7 @@ func (s *MuxBridge) StopService() {
 		if e != nil {
 			s.log.Printf("stop bridge service crashed,%s", e)
 		} else {
-			s.log.Printf("service bridge stoped")
+			s.log.Printf("service bridge stopped")
 		}
 		s.cfg = MuxBridgeArgs{}
 		s.clientControlConns = nil
diff --git a/services/mux/mux_client.go b/services/mux/mux_client.go
index 1cdcaf6..46a45ec 100644
--- a/services/mux/mux_client.go
+++ b/services/mux/mux_client.go
@@ -111,7 +111,7 @@ func (s *MuxClient) StopService() {
 		if e != nil {
 			s.log.Printf("stop client service crashed,%s", e)
 		} else {
-			s.log.Printf("service client stoped")
+			s.log.Printf("service client stopped")
 		}
 		s.cfg = MuxClientArgs{}
 		s.jumper = nil
diff --git a/services/mux/mux_server.go b/services/mux/mux_server.go
index 5d5fb2f..8f4ce87 100644
--- a/services/mux/mux_server.go
+++ b/services/mux/mux_server.go
@@ -207,7 +207,7 @@ func (s *MuxServer) StopService() {
 		if e != nil {
 			s.log.Printf("stop server service crashed,%s", e)
 		} else {
-			s.log.Printf("service server stoped")
+			s.log.Printf("service server stopped")
 		}
 		s.cfg = MuxServerArgs{}
 		s.jumper = nil
diff --git a/services/socks/socks.go b/services/socks/socks.go
index a0c4a40..92eefe0 100644
--- a/services/socks/socks.go
+++ b/services/socks/socks.go
@@ -230,7 +230,7 @@ func (s *Socks) StopService() {
 		if e != nil {
 			s.log.Printf("stop socks service crashed,%s", e)
 		} else {
-			s.log.Printf("service socks stoped")
+			s.log.Printf("service socks stopped")
 		}
 		s.basicAuth = utils.BasicAuth{}
 		s.cfg = SocksArgs{}
diff --git a/services/sps/sps.go b/services/sps/sps.go
index e9d40e3..12c5bbf 100644
--- a/services/sps/sps.go
+++ b/services/sps/sps.go
@@ -193,7 +193,7 @@ func (s *SPS) StopService() {
 		if e != nil {
 			s.log.Printf("stop sps service crashed,%s", e)
 		} else {
-			s.log.Printf("service sps stoped")
+			s.log.Printf("service sps stopped")
 		}
 		s.basicAuth = utils.BasicAuth{}
 		s.cfg = SPSArgs{}
@@ -254,7 +254,7 @@ func (s *SPS) Start(args interface{}, log *logger.Logger) (err error) {
 				err = sc.ListenTCP(s.callback)
 			} else if *s.cfg.LocalType == "tls" {
 				err = sc.ListenTLS(s.cfg.CertBytes, s.cfg.KeyBytes, s.cfg.CaCertBytes, s.callback)
-			} else if *s.cfg.LocalType == "tcp" {
+			} else if *s.cfg.LocalType == "kcp" {
 				err = sc.ListenKCP(s.cfg.KCP, s.callback, s.log)
 			}
 			if *s.cfg.ParentServiceType == "socks" {
diff --git a/services/tcp/tcp.go b/services/tcp/tcp.go
index c6ae279..1325aaf 100644
--- a/services/tcp/tcp.go
+++ b/services/tcp/tcp.go
@@ -100,7 +100,7 @@ func (s *TCP) StopService() {
 		if e != nil {
 			s.log.Printf("stop tcp service crashed,%s", e)
 		} else {
-			s.log.Printf("service tcp stoped")
+			s.log.Printf("service tcp stopped")
 		}
 		s.cfg = TCPArgs{}
 		s.jumper = nil
diff --git a/services/tunnel/tunnel_bridge.go b/services/tunnel/tunnel_bridge.go
index 5cdc7f3..3f29994 100644
--- a/services/tunnel/tunnel_bridge.go
+++ b/services/tunnel/tunnel_bridge.go
@@ -72,7 +72,7 @@ func (s *TunnelBridge) StopService() {
 		if e != nil {
 			s.log.Printf("stop tbridge service crashed,%s", e)
 		} else {
-			s.log.Printf("service tbridge stoped")
+			s.log.Printf("service tbridge stopped")
 		}
 		s.cfg = TunnelBridgeArgs{}
 		s.clientControlConns = nil
diff --git a/services/tunnel/tunnel_client.go b/services/tunnel/tunnel_client.go
index 3787685..f00e8a0 100644
--- a/services/tunnel/tunnel_client.go
+++ b/services/tunnel/tunnel_client.go
@@ -95,7 +95,7 @@ func (s *TunnelClient) StopService() {
 		if e != nil {
 			s.log.Printf("stop tclient service crashed,%s", e)
 		} else {
-			s.log.Printf("service tclient stoped")
+			s.log.Printf("service tclient stopped")
 		}
 		s.cfg = TunnelClientArgs{}
 		s.ctrlConn = nil
diff --git a/services/tunnel/tunnel_server.go b/services/tunnel/tunnel_server.go
index f6d13ce..442848d 100644
--- a/services/tunnel/tunnel_server.go
+++ b/services/tunnel/tunnel_server.go
@@ -176,7 +176,7 @@ func (s *TunnelServer) StopService() {
 		if e != nil {
 			s.log.Printf("stop server service crashed,%s", e)
 		} else {
-			s.log.Printf("service server stoped")
+			s.log.Printf("service server stopped")
 		}
 		s.cfg = TunnelServerArgs{}
 		s.jumper = nil
diff --git a/services/udp/udp.go b/services/udp/udp.go
index f585b9a..1382dec 100644
--- a/services/udp/udp.go
+++ b/services/udp/udp.go
@@ -94,7 +94,7 @@ func (s *UDP) StopService() {
 		if e != nil {
 			s.log.Printf("stop udp service crashed,%s", e)
 		} else {
-			s.log.Printf("service udp stoped")
+			s.log.Printf("service udp stopped")
 		}
 		s.cfg = UDPArgs{}
 		s.log = nil