diff --git a/IPv6-disable.sh b/IPv6-disable.sh
new file mode 100755
index 0000000..b5a6f70
--- /dev/null
+++ b/IPv6-disable.sh
@@ -0,0 +1,243 @@
+#!/usr/bin/env bash
+
+script_name="$(basename $(realpath $0))"
+working_dir="$(dirname $(realpath $0))"
+
+conf_file="${working_dir}/conf/${script_name%%.*}.conf"
+
+LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
+log_file="${LOCK_DIR}/${script_name%%.*}.log"
+
+
+
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -rf "$LOCK_DIR"
+   blank_line
+   exit $1
+}
+
+
+echononl(){
+   if $terminal ; then
+      echo X\\c > /tmp/shprompt$$
+      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
+   blank_line
+   exit 1
+}
+
+error (){
+   echo ""
+   if $terminal ; then
+      echo -e "   [ \033[31m\033[1mError\033[m ] $*"
+   else
+      echo "   [ Error ] $*"
+   fi
+   echo ""
+}
+
+warn (){
+   if $LOGGING || $terminal ; then
+      echo ""
+      if $terminal ; then
+         echo -e "   [ \033[33m\033[1mWarn\033[m ]  $*"
+      else
+         echo "   [ Warn ]  $*"
+      fi
+      echo ""
+   fi
+}
+
+info (){
+   if $LOGGING || $terminal ; then
+      echo ""
+      if $terminal ; then
+         echo -e "   [ \033[32m\033[1mInfo\033[m ]  $*"
+      else
+         echo "   [ Info ]  $*"
+      fi
+      echo ""
+   fi
+}
+
+ok (){
+   if $LOGGING || $terminal ; then
+      echo ""
+      if $terminal ; then
+         echo -e "   [ \033[32m\033[1mOk\033[m ]    $*"
+      else
+         echo "   [ Ok ]    $*"
+      fi
+      echo ""
+   fi
+}
+echo_done() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[32mdone\033[m ]"
+   fi
+}
+echo_ok() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[32mok\033[m ]"
+   fi
+}
+echo_warn() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[33mwarn\033[m ]"
+   fi
+}
+echo_failed(){
+   if $terminal ; then
+      echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
+   fi
+}
+echo_skipped() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[90m\033[1mskipped\033[m ]"
+   fi
+}
+echo_wait(){
+   if $terminal ; then
+      echo -en "\033[75G[ \033[5m\033[1m...\033[m ]"
+   fi
+}
+
+trim() {
+    local var="$*"
+    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
+   terminal=false
+fi
+
+
+# ----------
+# - 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"
+   echo ""
+fi
+
+
+echononl "Disable IPv6 on this machine.."
+
+output="$(ip -6 addr 2> $log_file)"
+if [[ $? -ne 0 ]] ; then
+   echo_failed
+   error "Executing command 'ip -6 addr' failed!\n\nThe Error was:\n$(cat "$log_file")"
+elif [[ -z "$output" ]] ; then
+   echo_skipped
+   warn "IPv6 is already disabled."
+else
+   sysctl -w net.ipv6.conf.all.disable_ipv6=1 > /dev/null 2> $log_file
+   if [[ $? -ne 0 ]] ; then
+      echo_failed
+      error "Cannot set kernel parameter 'net.ipv6.conf.all.disable_ipv6'\n\nThe Error was:\n$(cat "$log_file")"
+      clean_up 1
+   fi
+
+   sysctl -w net.ipv6.conf.default.disable_ipv6=1 > /dev/null 2> $log_file
+   if [[ $? -ne 0 ]] ; then
+      echo_failed
+      error "Cannot set kernel parameter 'net.ipv6.conf.default.disable_ipv6'\n\nThe Error was:\n$(cat "$log_file")"
+      clean_up 1
+   fi
+
+   sysctl -w net.ipv6.conf.lo.disable_ipv6=1  > /dev/null 2> $log_file
+   if [[ $? -ne 0 ]] ; then
+      echo_failed
+      error "Cannot set kernel parameter 'net.ipv6.conf.default.disable_ipv6'\n\nThe Error was:\n$(cat "$log_file")"
+      clean_up 1
+   fi
+   echo_ok
+fi
+
+# ----------
+# One method to make this option persist is modifying /etc/sysctl.conf.
+#
+#  net.ipv6.conf.all.disable_ipv6=0
+#  net.ipv6.conf.default.disable_ipv6=0
+#  net.ipv6.conf.lo.disable_ipv6=0
+#
+# For the settings to take effect use:
+#
+#  sudo sysctl -p
+#
+# If IPv6 is still enabled after rebooting, you must create (with root 
+# privileges) the file /etc/rc.local and fill it with:
+#
+#  #!/bin/bash
+#  # /etc/rc.local
+#
+#  /etc/sysctl.d
+#  /etc/init.d/procps restart
+#
+#  exit 0
+#
+# Now use chmod command to make the file executable:
+#
+# chmod 755 /etc/rc.local
+# ----------
+
+clean_up 0
diff --git a/IPv6-enable.sh b/IPv6-enable.sh
new file mode 100755
index 0000000..71b0754
--- /dev/null
+++ b/IPv6-enable.sh
@@ -0,0 +1,243 @@
+#!/usr/bin/env bash
+
+script_name="$(basename $(realpath $0))"
+working_dir="$(dirname $(realpath $0))"
+
+conf_file="${working_dir}/conf/${script_name%%.*}.conf"
+
+LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
+log_file="${LOCK_DIR}/${script_name%%.*}.log"
+
+
+
+clean_up() {
+
+   # Perform program exit housekeeping
+   rm -rf "$LOCK_DIR"
+   blank_line
+   exit $1
+}
+
+
+echononl(){
+   if $terminal ; then
+      echo X\\c > /tmp/shprompt$$
+      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
+   blank_line
+   exit 1
+}
+
+error (){
+   echo ""
+   if $terminal ; then
+      echo -e "   [ \033[31m\033[1mError\033[m ] $*"
+   else
+      echo "   [ Error ] $*"
+   fi
+   echo ""
+}
+
+warn (){
+   if $LOGGING || $terminal ; then
+      echo ""
+      if $terminal ; then
+         echo -e "   [ \033[33m\033[1mWarn\033[m ]  $*"
+      else
+         echo "   [ Warn ]  $*"
+      fi
+      echo ""
+   fi
+}
+
+info (){
+   if $LOGGING || $terminal ; then
+      echo ""
+      if $terminal ; then
+         echo -e "   [ \033[32m\033[1mInfo\033[m ]  $*"
+      else
+         echo "   [ Info ]  $*"
+      fi
+      echo ""
+   fi
+}
+
+ok (){
+   if $LOGGING || $terminal ; then
+      echo ""
+      if $terminal ; then
+         echo -e "   [ \033[32m\033[1mOk\033[m ]    $*"
+      else
+         echo "   [ Ok ]    $*"
+      fi
+      echo ""
+   fi
+}
+echo_done() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[32mdone\033[m ]"
+   fi
+}
+echo_ok() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[32mok\033[m ]"
+   fi
+}
+echo_warn() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[33mwarn\033[m ]"
+   fi
+}
+echo_failed(){
+   if $terminal ; then
+      echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
+   fi
+}
+echo_skipped() {
+   if $terminal ; then
+      echo -e "\033[75G[ \033[90m\033[1mskipped\033[m ]"
+   fi
+}
+echo_wait(){
+   if $terminal ; then
+      echo -en "\033[75G[ \033[5m\033[1m...\033[m ]"
+   fi
+}
+
+trim() {
+    local var="$*"
+    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
+   terminal=false
+fi
+
+
+# ----------
+# - 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"
+   echo ""
+fi
+
+
+echononl "Enable IPv6 on this machine.."
+
+output="$(ip -6 addr 2> $log_file)"
+if [[ $? -ne 0 ]] ; then
+   echo_failed
+   error "Executing command 'ip -6 addr' failed!\n\nThe Error was:\n$(cat "$log_file")"
+elif [[ -n "$output" ]] ; then
+   echo_skipped
+   warn "IPv6 is already enabled."
+else
+   sysctl -w net.ipv6.conf.all.disable_ipv6=0 > /dev/null 2> $log_file
+   if [[ $? -ne 0 ]] ; then
+      echo_failed
+      error "Cannot set kernel parameter 'net.ipv6.conf.all.disable_ipv6'\n\nThe Error was:\n$(cat "$log_file")"
+      clean_up 1
+   fi
+
+   sysctl -w net.ipv6.conf.default.disable_ipv6=0 > /dev/null 2> $log_file
+   if [[ $? -ne 0 ]] ; then
+      echo_failed
+      error "Cannot set kernel parameter 'net.ipv6.conf.default.disable_ipv6'\n\nThe Error was:\n$(cat "$log_file")"
+      clean_up 1
+   fi
+
+   sysctl -w net.ipv6.conf.lo.disable_ipv6=0  > /dev/null 2> $log_file
+   if [[ $? -ne 0 ]] ; then
+      echo_failed
+      error "Cannot set kernel parameter 'net.ipv6.conf.default.disable_ipv6'\n\nThe Error was:\n$(cat "$log_file")"
+      clean_up 1
+   fi
+   echo_ok
+fi
+
+# ----------
+# One method to make this option persist is modifying /etc/sysctl.conf.
+#
+#  net.ipv6.conf.all.disable_ipv6=0
+#  net.ipv6.conf.default.disable_ipv6=0
+#  net.ipv6.conf.lo.disable_ipv6=0
+#
+# For the settings to take effect use:
+#
+#  sudo sysctl -p
+#
+# If IPv6 is still enabled after rebooting, you must create (with root 
+# privileges) the file /etc/rc.local and fill it with:
+#
+#  #!/bin/bash
+#  # /etc/rc.local
+#
+#  /etc/sysctl.d
+#  /etc/init.d/procps restart
+#
+#  exit 0
+#
+# Now use chmod command to make the file executable:
+#
+# chmod 755 /etc/rc.local
+# ----------
+
+clean_up 0