diff --git a/README.md b/README.md
index 6d8e35a..0d351e0 100644
--- a/README.md
+++ b/README.md
@@ -127,8 +127,9 @@ configure by setting environment variables when you create container.
 
 * `REMOTE_DESKTOP`: nomachine (default) , kasmvnc, novnc.
 * `VNC_THREADS`: RectThread num for vncserver, only used when `REMOTE_DESKTOP` = kasmvnc. default is 2, set 0 for auto.
-* `HTTPS_CERT`: SSL pem certificate file path to use for https server(kasmvnc/nonvc)
-* `HTTPS_CERT_KEY`: SSL pem key file path to use for https server(kasmvnc/nonvc)
+* `HTTPS_CERT`: SSL pem certificate file path to use for https server(kasmvnc/nonvc).
+* `HTTPS_CERT_KEY`: SSL pem key file path to use for https server(kasmvnc/nonvc).
+* `DISABLE_HTTPS`: set 1 for http server mode, which is useful for reverse proxy.
 
 #### Enable GPU hardware-accelerated rendering
 
diff --git a/ubuntu-desktop/docker_config/entrypoint.sh b/ubuntu-desktop/docker_config/entrypoint.sh
index b08cac1..ce62ef3 100755
--- a/ubuntu-desktop/docker_config/entrypoint.sh
+++ b/ubuntu-desktop/docker_config/entrypoint.sh
@@ -34,7 +34,11 @@ fi
 # start dbus
 /etc/init.d/dbus start
 # start coder server
-su $USER -c "code-server --cert $HTTPS_CERT --cert-key $HTTPS_CERT_KEY --bind-addr=0.0.0.0:5000 &"
+if [ ! -z ${DISABLE_HTTPS+x} ]; then
+    su $USER -c "code-server --bind-addr=0.0.0.0:5000 &"
+else
+    su $USER -c "code-server --cert $HTTPS_CERT --cert-key $HTTPS_CERT_KEY --bind-addr=0.0.0.0:5000 &"
+fi
 # start remote desktop
 if [ "${REMOTE_DESKTOP}" = "nomachine" ]; then
     echo "start nomachine"
diff --git a/ubuntu-desktop/docker_config/install_code_server.sh b/ubuntu-desktop/docker_config/install_code_server.sh
index 2c4d12e..8ab5c60 100755
--- a/ubuntu-desktop/docker_config/install_code_server.sh
+++ b/ubuntu-desktop/docker_config/install_code_server.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-version=4.93.1
+version=4.103.2
 arch=$(dpkg --print-architecture)
 codename=$(lsb_release --short --codename)
 if [[ $codename == 'bionic' ]]; then
diff --git a/ubuntu-desktop/docker_config/install_novnc.sh b/ubuntu-desktop/docker_config/install_novnc.sh
index 1c4f5d8..c45faac 100755
--- a/ubuntu-desktop/docker_config/install_novnc.sh
+++ b/ubuntu-desktop/docker_config/install_novnc.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-NOVNC_VERSION=1.4.0
+NOVNC_VERSION=1.6.0
 # install turbovnc
 wget -q -O- https://packagecloud.io/dcommander/turbovnc/gpgkey | gpg --dearmor >/etc/apt/trusted.gpg.d/TurboVNC.gpg
 wget -O /etc/apt/sources.list.d/TurboVNC.list https://raw.githubusercontent.com/TurboVNC/repo/main/TurboVNC.list
diff --git a/ubuntu-desktop/docker_config/start_kasmvnc.sh b/ubuntu-desktop/docker_config/start_kasmvnc.sh
index f392b45..8c06946 100755
--- a/ubuntu-desktop/docker_config/start_kasmvnc.sh
+++ b/ubuntu-desktop/docker_config/start_kasmvnc.sh
@@ -5,6 +5,10 @@ if [ ! -f "/home/$USER/.vnc/passwd" ]; then
 fi
 rm -rf /tmp/.X1000-lock /tmp/.X11-unix/X1000
 # start kasmvnc
-su $USER -c "kasmvncserver :1000 -select-de xfce -interface 0.0.0.0 -websocketPort 4000 -cert $HTTPS_CERT -key $HTTPS_CERT_KEY -RectThreads $VNC_THREADS"
+if [ ! -z ${DISABLE_HTTPS+x} ]; then
+  su $USER -c "kasmvncserver :1000 -select-de xfce -interface 0.0.0.0 -websocketPort 4000 -sslOnly 0 -RectThreads $VNC_THREADS"
+else
+  su $USER -c "kasmvncserver :1000 -select-de xfce -interface 0.0.0.0 -websocketPort 4000 -cert $HTTPS_CERT -key $HTTPS_CERT_KEY -RectThreads $VNC_THREADS"
+fi
 su $USER -c "pulseaudio --start"
 tail -f /home/$USER/.vnc/*.log
diff --git a/ubuntu-desktop/docker_config/start_novnc.sh b/ubuntu-desktop/docker_config/start_novnc.sh
index f3b14a0..f26e865 100755
--- a/ubuntu-desktop/docker_config/start_novnc.sh
+++ b/ubuntu-desktop/docker_config/start_novnc.sh
@@ -7,5 +7,9 @@ rm -rf /tmp/.X1000-lock /tmp/.X11-unix/X1000
 # start TurboVNC
 su $USER -c "/opt/TurboVNC/bin/vncserver :1000 -rfbport 5900"
 # start NoVNC
-su $USER -c "/opt/noVNC/utils/novnc_proxy --vnc localhost:5900 --ssl-only --cert $HTTPS_CERT --key $HTTPS_CERT_KEY --listen 4000 --heartbeat 10 &"
+if [ ! -z ${DISABLE_HTTPS+x} ]; then
+    su $USER -c "/opt/noVNC/utils/novnc_proxy --vnc localhost:5900 --listen 4000 --heartbeat 10 &"
+else
+    su $USER -c "/opt/noVNC/utils/novnc_proxy --vnc localhost:5900 --ssl-only --cert $HTTPS_CERT --key $HTTPS_CERT_KEY --listen 4000 --heartbeat 10 &"
+fi
 tail -f /home/$USER/.vnc/*.log