diff --git a/bbb-post-install.sh b/bbb-post-install.sh
new file mode 100755
index 0000000..2bb3b22
--- /dev/null
+++ b/bbb-post-install.sh
@@ -0,0 +1,494 @@
+#!/usr/bin/env bash
+  
+cript_name="$(basename $(realpath $0))"
+working_dir="$(dirname $(realpath $0))"
+
+conf_file="${working_dir}/conf/${script_name%%.*}.conf"
+
+LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
+log_file="${LOCK_DIR}/${script_name%%.*}.log"
+
+DIST="ubuntu"
+DIST_RELEASE="xenial"
+
+FQDN_HOSTNAME="bbb.oopen.de"
+HOSTNAME=" ${FQDN_HOSTNAME%%.*}"
+
+
+# ----------
+# Base Function(s)
+# ----------
+
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -rf "$LOCK_DIR"
+   blank_line
+   exit $1
+}
+
+echononl(){
+   if $terminal ; then
+      echo X\\c > /tmp/shprompt$$
+      if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
+         echo -e -n "   $*\\c" 1>&2
+      else
+         echo -e -n "   $*" 1>&2
+      fi
+      rm /tmp/shprompt$$
+   fi
+}
+fatal(){
+   echo ""
+   if $terminal ; then
+      echo -e "   [ \033[31m\033[1mFatal\033[m ] $*"
+   else
+      echo -e "   [ Fatal ] $*"
+   fi
+   echo ""
+   if $terminal ; then
+      echo -e "             \033[1mScript terminated\033[m.."
+   else
+      echo -e "             Script terminated.."
+   fi
+   echo ""
+   rm -rf $LOCK_DIR
+   exit 1
+}
+error (){
+   echo ""
+   if $terminal ; then
+      echo -e "   [ \033[31m\033[1mError\033[m ] $*"
+   else
+      echo "   [ Error ] $*"
+   fi
+   echo ""
+}
+
+echo_ok() {
+   if $terminal ; then
+      echo -e "\033[85G[ \033[32mok\033[m ]"
+   fi
+}
+echo_failed(){
+   if $terminal ; then
+      echo -e "\033[85G[ \033[1;31mfailed\033[m ]"
+   fi
+}
+echo_skipped() {
+   if $terminal ; then
+      echo -e "\033[85G[ \033[33m\033[1mskipped\033[m ]"
+   fi
+}
+echo_wait(){
+   if $terminal ; then
+      echo -en "\033[85G[ \033[5m\033[1m..\033[m ]"
+   fi
+}
+
+trim() {
+    local var="$*"
+    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
+    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
+    echo -n "$var"
+}
+
+blank_line() {
+   if $terminal ; then
+      echo ""
+   fi
+}
+
+
+
+# ----------
+# - Jobhandling
+# ----------
+
+# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM
+# -
+trap clean_up SIGHUP SIGINT SIGTERM
+
+# - Create lock directory '$LOCK_DIR"
+#
+mkdir "$LOCK_DIR"
+
+
+# ----------
+# - Some checks ..
+# ----------
+
+# - Running in a terminal?
+# -
+if [[ -t 1 ]] ; then
+   terminal=true
+else
+   fatal "Script must run in a terminal."
+fi
+
+
+# ==========
+# - Begin Main Script
+# ==========
+
+# ----------
+# - Headline
+# ----------
+
+if $terminal ; then
+   echo ""
+   echo -e "\033[1m----------\033[m"
+   echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m"
+   echo -e "\033[1m----------\033[m"
+fi
+
+
+# Make the HTML5 client default
+#
+if $terminal ; then
+   echo -e "   \\033[1mMake the HTML5 client the default client\033[m (no longer load the Flash client)"
+   echo ""
+fi
+echononl "Set 'attendeesJoinViaHTML5Client=true'.."
+if $(grep -q -E "^\s*attendeesJoinViaHTML5Client=true" \
+     /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties 2> /dev/null) ; then
+   echo_skipped
+else
+   perl -i -n -p -e "s/^(attendeesJoinViaHTML5Client=.*)/##!\1\nattendeesJoinViaHTML5Client=true/" \
+      /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties > "$log_file" 2>&1
+   if [[ $? -ne 0 ]]; then
+      echo_failed
+      error "$(cat "$log_file")"
+   else
+      echo_ok
+   fi
+fi
+
+echononl "Set 'moderatorsJoinViaHTML5Client=true'.."
+if $(grep -q -E "^\s*moderatorsJoinViaHTML5Client=true" \
+     /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties 2> /dev/null) ; then
+   echo_skipped
+else
+   perl -i -n -p -e "s/^(moderatorsJoinViaHTML5Client=.*)/##!\1\nmoderatorsJoinViaHTML5Client=true/" \
+      /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties >> "$log_file" 2>&1
+   if [[ $? -ne 0 ]]; then
+      echo_failed
+      error "$(cat "$log_file")"
+   else
+      echo_ok
+   fi
+fi
+
+clean_up 0
+
+# /etc/resolf.conf
+#
+echononl "Remove symlink '/etc/resolv.conf'.."
+if [[ -h "/etc/resolv.conf" ]]; then
+	rm /etc/resolv.conf > $log_file 2>&1
+	if [[ $? -ne 0 ]]; then
+   	echo_failed
+   	error "$(cat "$log_file")"
+	else
+   	echo_ok
+	fi
+else
+	echo_skipped
+fi
+
+echononl "Create new file '/etc/resolf.conf'.."
+cat <<EOF > /etc/resolv.conf 2> $log_file
+### Hetzner Online GmbH installimage
+# nameserver config
+nameserver 213.133.100.100
+nameserver 213.133.98.98
+nameserver 213.133.99.99
+nameserver 2a01:4f8:0:1::add:9898
+nameserver 2a01:4f8:0:1::add:1010
+nameserver 2a01:4f8:0:1::add:9999
+EOF
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+
+echononl "Set FQDN hostname (IPv4).."
+perl -i -n -p -e "s/^127\.0\.1\.1.*/127.0.1.1 $FQDN_HOSTNAME $HOSTNAME/" /etc/hosts > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+blank_line
+
+echononl "Create sources.list for '$DIST $DIST_RELEASE'.."
+cat <<EOF > /etc/apt/sources.list 2> "$log_file"
+deb http://archive.ubuntu.com/ubuntu ${DIST_RELEASE} main restricted universe multiverse
+deb http://archive.ubuntu.com/ubuntu ${DIST_RELEASE}-updates main restricted universe multiverse
+
+deb http://security.ubuntu.com/ubuntu ${DIST_RELEASE}-security main restricted universe multiverse
+
+deb http://archive.ubuntu.com/ubuntu ${DIST_RELEASE}-backports main restricted universe multiverse
+EOF
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Update repositories.."
+apt-get update > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Upgrade System.."
+apt-get dist-upgrade > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+blank_line
+
+
+# Set the locale of the server to 'en_US.UTF-8'.
+#
+echononl "Install 'language-pack-en'.."
+apt-get install language-pack-en > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Set the locale of the server to 'en_US.UTF-8'.."
+update-locale LANG=en_US.UTF-8 > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Set system environment to 'en_US.UTF-8'.."
+systemctl set-environment LANG=en_US.UTF-8 > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+blank_line
+
+
+# BigBlueButton’s components, such as Tomcat, need a source of entropy when starting up. 
+#
+echononl "Install 'haveged'.."
+apt-get install haveged > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Install 'software-properties-common'.."
+apt-get install software-properties-common -y > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+blank_line
+
+
+# Add reposototies for 'ffmpeg' (create recordings) and 'yq' (update YAML files)
+#
+# Note:
+#     The default version of ffmpeg in Ubuntu 16.04 is old and yq does not exist 
+#     in the default repositories
+#
+echononl "Add repository for 'ffmpeg' .."
+add-apt-repository ppa:bigbluebutton/support -y > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+   echo_failed
+   error "$(cat "$log_file")"
+else
+   echo_ok
+fi
+
+echononl "Add repository for 'yq'.."
+add-apt-repository ppa:rmescandon/yq -y > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+   echo_failed
+   error "$(cat "$log_file")"
+else
+   echo_ok
+fi
+
+echononl "Update repositories.."
+apt-get update > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Upgrade System.."
+apt-get dist-upgrade > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+blank_line
+
+# add repository for mongodb
+#
+echononl "Add apt key for 'mongodb' repository.."
+wget -qO - https://www.mongodb.org/static/pgp/server-3.4.asc | sudo apt-key add - > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Add repository for 'mongodb'.."
+cat <<EOF > /etc/apt/sources.list.d/mongodb-org-3.4.list 2> "$log_file"
+deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu ${DIST_RELEASE}/mongodb-org/3.4 multiverse
+EOF
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Update repositories.."
+apt-get update > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Upgrade System.."
+apt-get dist-upgrade > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+blank_line
+
+
+# install nodejs
+#
+echononl "Trigger script to install the NodeSource Node.js 8.x LTS Carbon repo.."
+echo_wait
+curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash - > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+echononl "Install nodejs.."
+apt-get install -y nodejs > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+
+# apt-get key for BigBlueButton repository
+#
+echononl "Add apt key for BigBlueButton repository.."
+wget https://ubuntu.bigbluebutton.org/repo/bigbluebutton.asc -O- 2> "$log_file" | sudo apt-key add - > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+# add the repository for BigBlueButton 2.2 packages
+#
+echononl "Add repository for BigBlueButton 2.2 packages.."
+cat <<EOF > /etc/apt/sources.list.d/bigbluebutton.list 2> "$log_file"
+deb https://ubuntu.bigbluebutton.org/${DIST_RELEASE}-220/ bigbluebutton-${DIST_RELEASE} main
+EOF
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+
+echononl "Update repositories.."
+apt-get update > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+blank_line
+
+
+# Create 'override'-directory for service 'redis-server'
+#
+echononl "Create 'override'-directory for service 'redis-server'.."
+if [[ -d "/etc/systemd/system/redis-server.service.d" ]] ; then
+	echo_skipped
+else
+	mkdir /etc/systemd/system/redis-server.service.d
+	if [[ $? -ne 0 ]]; then
+		echo_failed
+		error "$(cat "$log_file")"
+	else
+		echo_ok
+	fi
+fi
+
+echononl "Create 'override'-file for service 'redis-server'.."
+cat <<EOF > /etc/systemd/system/redis-server.service.d/override.conf 2> "$log_file"
+[Service]
+PrivateDevices=no
+EOF
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+clean_up 0