diff --git a/Dockerfile b/Dockerfile
index aea0b39..5690959 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,5 +10,6 @@ RUN wget http://fpdownload.macromedia.com/get/flashplayer/pdc/11.2.202.635/insta
 && cp flash_player/libflashplayer.so ~/.mozilla/plugins/ \
 && rm -rf flash_player install_flash_player_11_linux.x86_64.tar.gz /tmp/.X11-unix/*
 ADD ./conf/xstartup /root/.vnc/xstartup
+RUN echo "xiaosong" | /usr/bin/vncpasswd -f > /root/.vnc/passwd
 EXPOSE 5901
-ENTRYPOINT ["/usr/bin/vncserver", ":1", "-geometry 1280x720", "-depth 24"]
+ENTRYPOINT ["service", "vncserver", "start"]