diff --git a/Dockerfile b/Dockerfile
index 3742796..10ba305 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,10 @@
-FROM ubuntu
+FROM ubuntu:14.04
 
 RUN apt-get update \
-    && apt-get install -y wget x11vnc xvfb firefox
-ENV vncpwd=xiaosong
-RUN mkdir ~/.vnc \
-    && x11vnc -storepasswd $vncpwd ~/.vnc/passwd \
-    && bash -c 'echo "firefox" >> ~/.bashrc' \
+    && apt-get install -y wget firefox lxde-core lxterminal tightvncserver
+ENV VNCPWD=xiaosong
+RUN && mkdir ~/.vnc \
+    && echo $VNCPWD $VNCPWD | vncpasswd && \
     && wget http://fpdownload.macromedia.com/get/flashplayer/pdc/11.2.202.635/install_flash_player_11_linux.x86_64.tar.gz \
     && mkdir flash_player \
     && tar zxvf install_flash_player_11_linux.x86_64.tar.gz -C flash_player \
@@ -13,5 +12,6 @@ RUN mkdir ~/.vnc \
     && cp flash_player/libflashplayer.so ~/.mozilla/plugins/ \
     && rm -rf flash_player install_flash_player_11_linux.x86_64.tar.gz
 
-EXPOSE 5900
-CMD    ["x11vnc", "-forever", "-usepw", "-create"]
\ No newline at end of file
+EXPOSE 5901
+COPY vnc.sh /opt/
+CMD ["/opt/vnc.sh"]
\ No newline at end of file