diff --git a/examples/rtmp_publish_sink/main.go b/examples/rtmp_publish_sink/main.go
index 895ae2d..bf248e1 100644
--- a/examples/rtmp_publish_sink/main.go
+++ b/examples/rtmp_publish_sink/main.go
@@ -69,6 +69,9 @@ func (s *server) log(who, action, path, message string, client net.Addr) {
 }
 
 func (s *server) handlePlay(conn *rtmp.Conn) {
+	client := conn.NetConn().RemoteAddr()
+
+	s.log("PLAY", "INVALID", conn.URL.Path, "not supported", client)
 	conn.Close()
 }
 
@@ -108,15 +111,23 @@ func main() {
 	var cert string
 	var key string
 	var help bool
+	var addr string
+	var app string
+	var token string
 
 	flag.StringVar(&cert, "cert", "", "Path to the certifacate file")
 	flag.StringVar(&key, "key", "", "Path to the key file")
+	flag.StringVar(&addr, "addr", ":1935", "Address to listen on")
+	flag.StringVar(&app, "app", "/", "RTMP app, should start with /")
+	flag.StringVar(&token, "token", "", "Token query string")
 	flag.BoolVar(&help, "h", false, "Show options")
 
 	flag.Parse()
 
 	config := Config{
-		Addr: ":1935",
+		Addr:  addr,
+		App:   app,
+		Token: token,
 	}
 
 	server, _ := New(config)
diff --git a/format/rtmp/rtmp.go b/format/rtmp/rtmp.go
index 3ea6b7d..3f0f01a 100644
--- a/format/rtmp/rtmp.go
+++ b/format/rtmp/rtmp.go
@@ -426,8 +426,14 @@ var CodecTypes = flv.CodecTypes
 
 func (self *Conn) writeBasicConf() (err error) {
 	// > SetChunkSize
-	if err = self.writeSetChunkSize(1024 * 1024 * 128); err != nil {
-		return
+	if self.isserver {
+		if err = self.writeSetChunkSize(self.readMaxChunkSize); err != nil {
+			return
+		}
+	} else {
+		if err = self.writeSetChunkSize(1024 * 1024 * 1); err != nil {
+			return
+		}
 	}
 	// > WindowAckSize
 	if err = self.writeWindowAckSize(1024 * 1024 * 3); err != nil {
@@ -471,12 +477,17 @@ func (self *Conn) readConnect() (err error) {
 	if ok {
 		tcurl, _ = _tcurl.(string)
 	}
+
 	connectparams := self.commandobj
 
 	if err = self.writeBasicConf(); err != nil {
 		return
 	}
 
+	if err = self.flushWrite(); err != nil {
+		return
+	}
+
 	// > _result("NetConnection.Connect.Success")
 	if err = self.writeCommandMsg(3, 0, "_result", self.commandtransid,
 		flvio.AMFMap{
@@ -1180,6 +1191,7 @@ func (self *Conn) fillChunkHeader(b []byte, csid uint32, timestamp int32, msgtyp
 
 	if Debug {
 		fmt.Printf("rtmp: write chunk msgdatalen=%d msgsid=%d\n", msgdatalen, msgsid)
+		fmt.Print(hex.Dump(b[:msgdatalen]))
 	}
 
 	return
@@ -1568,6 +1580,10 @@ func (self *Conn) handleMsg(timestamp uint32, msgsid uint32, msgtypeid uint8, ms
 		}
 		self.readAckSize = pio.U32BE(self.msgdata)
 		return
+	default:
+		if Debug {
+			fmt.Printf("rtmp: unhandled msg: %d\n", msgtypeid)
+		}
 	}
 
 	self.gotmsg = true