diff --git a/.kitchen.dokken.yml b/.kitchen.dokken.yml
index eae04aa..af5a8c9 100644
--- a/.kitchen.dokken.yml
+++ b/.kitchen.dokken.yml
@@ -102,6 +102,8 @@ suites:
     verifier:
       inspec_tests:
         - test/smoke/server
+    attributes:
+      install_monitoring_plugins: true
     run_list:
       - recipe[icinga2::default]
       - recipe[icinga2-test::default]
diff --git a/.kitchen.yml b/.kitchen.yml
index f13f9c0..7761903 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -1,6 +1,8 @@
 ---
 driver:
   name: vagrant
+  customize:
+    audio: none
 
 verifier:
   name: inspec
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3cc0616..e75a24e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,13 @@ icinga2 CHANGELOG
 
 This file is used to list changes made in each version of the icinga2 cookbook.
 
+- Alberto Lorenzo - Workaround for VBox 5.2.8+ `Stderr: VBoxManage: error: The specified string / bytes buffer was to small` https://github.com/hashicorp/vagrant/issues/9524 
+- Alberto Lorenzo - Implement install monitoring plugins with boolean default['icinga2']['install_monitoring_plugins'] 
+- Alberto Lorenzo - Updated old notification scripts
+- Alberto Lorenzo - Fix deprecated fields on apilistener
+- Alberto Lorenzo - Fix service config file removing the `$` (https://github.com/Icinga/icinga2/issues/6434)
+
+
 4.0.0
 -----
 
diff --git a/LWRP.md b/LWRP.md
index f6318f6..96cf49a 100644
--- a/LWRP.md
+++ b/LWRP.md
@@ -1370,9 +1370,6 @@ LWRP `apilistener` creates an icinga `ApiListener` object.
 
 ```ruby
 icinga2_apilistener 'master' do
-  cert_path 'SysconfDir + "/icinga2/pki/" + NodeName + ".crt"'
-  key_path 'SysconfDir + "/icinga2/pki/" + NodeName + ".key"'
-  ca_path 'SysconfDir + "/icinga2/pki/ca.crt"'
   bind_host 'host address'
   bind_port '5665'
   ticket_salt 'TicketSalt'
diff --git a/README.md b/README.md
index 72aa0cd..78ef4eb 100644
--- a/README.md
+++ b/README.md
@@ -355,10 +355,13 @@ See LWRP.md for icinga2 resources.
 
 
 
+
 ## Cookbook Core Attributes
 
 * `default['icinga2']['version']` (default: `2.8.0-X, calculated`): icinga2 package version
 
+* `default['icinga2']['install_monitoring_plugins']` (default: `false`): whether to install monitoring-plugins (install_monitoring_plugins) or not
+
 * `default['icinga2']['setup_epel']` (default: `true`): if set includes cookbook recipe `yum-epel::default` for rhel and fedora platform_family
 
 * `default['icinga2']['cookbook']` (default: `icinga2`): icinga2 resources cookbook name
diff --git a/attributes/default.rb b/attributes/default.rb
index 46186b8..77ba54d 100644
--- a/attributes/default.rb
+++ b/attributes/default.rb
@@ -36,6 +36,9 @@
                                       %w(itl plugins)
                                     end
 
+# Install monitoring-plugins
+default['icinga2']['install_monitoring_plugins'] = false
+
 # includes yum-epel cookbook to setup yum epel repository
 default['icinga2']['setup_epel'] = true
 
@@ -85,6 +88,7 @@
 
 case node['platform_family']
 when 'fedora', 'rhel', 'amazon'
+  default['icinga2']['monitoring_plugins_packages'] = ['nagios-plugins-all']
   default['icinga2']['user'] = 'icinga'
   default['icinga2']['group'] = 'icinga'
   default['icinga2']['cmdgroup'] = 'icingacmd'
@@ -97,6 +101,11 @@
                                       end
 
 when 'debian'
+  default['icinga2']['monitoring_plugins_packages'] = if node['platform_version'].to_f <= 14.04
+                                                        ['nagios-plugins']
+                                                      else
+                                                        ['monitoring-plugins']
+                                                      end
   default['icinga2']['user'] = 'nagios'
   default['icinga2']['group'] = 'nagios'
   default['icinga2']['cmdgroup'] = 'nagios'
diff --git a/libraries/resource_apilistener.rb b/libraries/resource_apilistener.rb
index 21026ba..d7ec810 100644
--- a/libraries/resource_apilistener.rb
+++ b/libraries/resource_apilistener.rb
@@ -23,33 +23,6 @@ def cookbook(arg = nil)
         )
       end
 
-      def cert_path(arg = nil)
-        set_or_return(
-          :cert_path, arg,
-          :kind_of => String,
-          :required => true,
-          :default => nil
-        )
-      end
-
-      def key_path(arg = nil)
-        set_or_return(
-          :key_path, arg,
-          :kind_of => String,
-          :required => true,
-          :default => nil
-        )
-      end
-
-      def ca_path(arg = nil)
-        set_or_return(
-          :ca_path, arg,
-          :kind_of => String,
-          :required => true,
-          :default => nil
-        )
-      end
-
       def crl_path(arg = nil)
         set_or_return(
           :crl_path, arg,
@@ -110,7 +83,7 @@ def resource_properties(arg = nil)
         set_or_return(
           :resource_properties, arg,
           :kind_of => Array,
-          :default => %w(cert_path key_path ca_path crl_path bind_host bind_port ticket_salt accept_config accept_commands)
+          :default => %w(crl_path bind_host bind_port ticket_salt accept_config accept_commands)
         )
       end
     end
diff --git a/recipes/config.rb b/recipes/config.rb
index 2af377a..8294e27 100644
--- a/recipes/config.rb
+++ b/recipes/config.rb
@@ -92,6 +92,7 @@
     variables(
       :log_dir => node['icinga2']['log_dir'],
       :conf_dir => node['icinga2']['conf_dir'],
+      :run_dir => node['icinga2']['run_dir'],
       :user => node['icinga2']['user'],
       :group => node['icinga2']['group'],
       :cmdgroup => node['icinga2']['cmdgroup']
diff --git a/recipes/install.rb b/recipes/install.rb
index 58a5499..3bac574 100644
--- a/recipes/install.rb
+++ b/recipes/install.rb
@@ -55,6 +55,13 @@
   action :install
 end
 
+node['icinga2']['monitoring_plugins_packages'].each do |pkg|
+  package pkg do
+    action :install
+    only_if { node['icinga2']['install_monitoring_plugins'] }
+  end
+end
+
 package 'icinga2' do
   version node['icinga2']['version'] + node['icinga2']['version_suffix'] unless node['icinga2']['ignore_version']
   notifies :restart, 'service[icinga2]', :delayed
diff --git a/templates/default/icinga2.service.config.erb b/templates/default/icinga2.service.config.erb
index 18ba719..c37ce35 100644
--- a/templates/default/icinga2.service.config.erb
+++ b/templates/default/icinga2.service.config.erb
@@ -4,9 +4,9 @@
 #
 DAEMON=/usr/sbin/icinga2
 ICINGA2_CONFIG_FILE=<%= @conf_dir -%>/icinga2.conf
-ICINGA2_RUN_DIR=/var/run
+ICINGA2_RUN_DIR=<%= @run_dir %>
 ICINGA2_STATE_DIR=/var
-ICINGA2_PID_FILE=$ICINGA2_RUN_DIR/icinga2/icinga2.pid
+ICINGA2_PID_FILE=<%= @run_dir %>/icinga2.pid
 ICINGA2_ERROR_LOG=<%= @log_dir -%>/error.log
 ICINGA2_STARTUP_LOG=<%= @log_dir -%>/startup.log
 ICINGA2_LOG=<%= @log_dir -%>/icinga2.log
diff --git a/templates/default/mail-host-notification.sh.erb b/templates/default/mail-host-notification.sh.erb
index 908d9ab..ffbeb5e 100644
--- a/templates/default/mail-host-notification.sh.erb
+++ b/templates/default/mail-host-notification.sh.erb
@@ -1,26 +1,175 @@
 #!/usr/bin/env bash
 #
-# Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/)
-#
+# Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/)
+# Except of function urlencode which is Copyright (C) by Brian White (brian@aljex.com) used under MIT license
+
 # This file is managed by Chef.
 # Do NOT modify this file directly.
-#
-template=$(cat <<TEMPLATE
-***** Icinga  *****
 
-Notification Type: $NOTIFICATIONTYPE
+PROG="`basename $0`"
+ICINGA2HOST="`hostname`"
+MAILBIN="mail"
+
+if [ -z "`which $MAILBIN`" ] ; then
+  echo "$MAILBIN not found in \$PATH. Consider installing it."
+  exit 1
+fi
+
+## Function helpers
+Usage() {
+cat << EOF
+
+Required parameters:
+  -d LONGDATETIME (\$icinga.long_date_time\$)
+  -e SERVICENAME (\$service.name\$)
+  -l HOSTNAME (\$host.name\$)
+  -n HOSTDISPLAYNAME (\$host.display_name\$)
+  -o SERVICEOUTPUT (\$service.output\$)
+  -r USEREMAIL (\$user.email\$)
+  -s SERVICESTATE (\$service.state\$)
+  -t NOTIFICATIONTYPE (\$notification.type\$)
+  -u SERVICEDISPLAYNAME (\$service.display_name\$)
+
+Optional parameters:
+  -4 HOSTADDRESS (\$address\$)
+  -6 HOSTADDRESS6 (\$address6\$)
+  -b NOTIFICATIONAUTHORNAME (\$notification.author\$)
+  -c NOTIFICATIONCOMMENT (\$notification.comment\$)
+  -i ICINGAWEB2URL (\$notification_icingaweb2url\$, Default: unset)
+  -f MAILFROM (\$notification_mailfrom\$, requires GNU mailutils (Debian/Ubuntu) or mailx (RHEL/SUSE))
+  -v (\$notification_sendtosyslog\$, Default: false)
+
+EOF
+}
+
+Help() {
+  Usage;
+  exit 0;
+}
+
+Error() {
+  if [ "$1" ]; then
+    echo $1
+  fi
+  Usage;
+  exit 1;
+}
+
+urlencode() {
+  local LANG=C i c e=''
+  for ((i=0;i<${#1};i++)); do
+    c=${1:$i:1}
+    [[ "$c" =~ [a-zA-Z0-9\.\~\_\-] ]] || printf -v c '%%%02X' "'$c"
+    e+="$c"
+  done
+  echo "$e"
+}
+
+## Main
+while getopts 4:6:b:c:d:e:f:hi:l:n:o:r:s:t:u:v: opt
+do
+  case "$opt" in
+    4) HOSTADDRESS=$OPTARG ;;
+    6) HOSTADDRESS6=$OPTARG ;;
+    b) NOTIFICATIONAUTHORNAME=$OPTARG ;;
+    c) NOTIFICATIONCOMMENT=$OPTARG ;;
+    d) LONGDATETIME=$OPTARG ;; # required
+    e) SERVICENAME=$OPTARG ;; # required
+    f) MAILFROM=$OPTARG ;;
+    h) Usage ;;
+    i) ICINGAWEB2URL=$OPTARG ;;
+    l) HOSTNAME=$OPTARG ;; # required
+    n) HOSTDISPLAYNAME=$OPTARG ;; # required
+    o) SERVICEOUTPUT=$OPTARG ;; # required
+    r) USEREMAIL=$OPTARG ;; # required
+    s) SERVICESTATE=$OPTARG ;; # required
+    t) NOTIFICATIONTYPE=$OPTARG ;; # required
+    u) SERVICEDISPLAYNAME=$OPTARG ;; # required
+    v) VERBOSE=$OPTARG ;;
+   \?) echo "ERROR: Invalid option -$OPTARG" >&2
+       Usage ;;
+    :) echo "Missing option argument for -$OPTARG" >&2
+       Usage ;;
+    *) echo "Unimplemented option: -$OPTARG" >&2
+       Usage ;;
+  esac
+done
+
+shift $((OPTIND - 1))
+
+## Keep formatting in sync with mail-host-notification.sh
+for P in LONGDATETIME HOSTNAME HOSTDISPLAYNAME SERVICENAME SERVICEDISPLAYNAME SERVICEOUTPUT SERVICESTATE USEREMAIL NOTIFICATIONTYPE ; do
+        eval "PAR=\$${P}"
+
+        if [ ! "$PAR" ] ; then
+                Error "Required parameter '$P' is missing."
+        fi
+done
+
+## Build the message's subject
+SUBJECT="[$NOTIFICATIONTYPE] $SERVICEDISPLAYNAME on $HOSTDISPLAYNAME is $SERVICESTATE!"
+
+## Build the notification message
+NOTIFICATION_MESSAGE=`cat << EOF
+***** Service Monitoring on $ICINGA2HOST *****
+
+$SERVICEDISPLAYNAME on $HOSTDISPLAYNAME is $SERVICESTATE!
+
+Info:    $SERVICEOUTPUT
+
+When:    $LONGDATETIME
+Service: $SERVICENAME
+Host:    $HOSTNAME
+EOF
+`
+
+## Check whether IPv4 was specified.
+if [ -n "$HOSTADDRESS" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
+IPv4:    $HOSTADDRESS"
+fi
+
+## Check whether IPv6 was specified.
+if [ -n "$HOSTADDRESS6" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
+IPv6:    $HOSTADDRESS6"
+fi
+
+## Check whether author and comment was specified.
+if [ -n "$NOTIFICATIONCOMMENT" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
+
+Comment by $NOTIFICATIONAUTHORNAME:
+  $NOTIFICATIONCOMMENT"
+fi
+
+## Check whether Icinga Web 2 URL was specified.
+if [ -n "$ICINGAWEB2URL" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
 
-Host: $HOSTALIAS
-Address: $HOSTADDRESS
-State: $HOSTSTATE
+$ICINGAWEB2URL/monitoring/service/show?host=$(urlencode "$HOSTNAME")&service=$(urlencode "$SERVICENAME")"
+fi
 
-Date/Time: $LONGDATETIME
+## Check whether verbose mode was enabled and log to syslog.
+if [ "$VERBOSE" == "true" ] ; then
+  logger "$PROG sends $SUBJECT => $USEREMAIL"
+fi
 
-Additional Info: $HOSTOUTPUT
+## Send the mail using the $MAILBIN command.
+## If an explicit sender was specified, try to set it.
+if [ -n "$MAILFROM" ] ; then
 
-Comment: [$NOTIFICATIONAUTHORNAME] $NOTIFICATIONCOMMENT
-TEMPLATE
-)
+  ## Modify this for your own needs!
 
-/usr/bin/printf "%b" "$template" | mail -s "$NOTIFICATIONTYPE - $HOSTDISPLAYNAME is $HOSTSTATE" $USEREMAIL
+  ## Debian/Ubuntu use mailutils which requires `-a` to append the header
+  if [ -f /etc/debian_version ]; then
+    /usr/bin/printf "%b" "$NOTIFICATION_MESSAGE" | $MAILBIN -a "From: $MAILFROM" -s "$SUBJECT" $USEREMAIL
+  ## Other distributions (RHEL/SUSE/etc.) prefer mailx which sets a sender address with `-r`
+  else
+    /usr/bin/printf "%b" "$NOTIFICATION_MESSAGE" | $MAILBIN -r "$MAILFROM" -s "$SUBJECT" $USEREMAIL
+  fi
 
+else
+  /usr/bin/printf "%b" "$NOTIFICATION_MESSAGE" \
+  | $MAILBIN -s "$SUBJECT" $USEREMAIL
+fi
diff --git a/templates/default/mail-service-notification.sh.erb b/templates/default/mail-service-notification.sh.erb
index f76036e..52b9931 100644
--- a/templates/default/mail-service-notification.sh.erb
+++ b/templates/default/mail-service-notification.sh.erb
@@ -1,27 +1,176 @@
 #!/usr/bin/env bash
 #
-# Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/)
-#
+# Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/)
+# Except of function urlencode which is Copyright (C) by Brian White (brian@aljex.com) used under MIT license
+
 # This file is managed by Chef.
 # Do NOT modify this file directly.
 #
-template=$(cat <<TEMPLATE
-***** Icinga  *****
 
-Notification Type: $NOTIFICATIONTYPE
+PROG="`basename $0`"
+ICINGA2HOST="`hostname`"
+MAILBIN="mail"
+
+if [ -z "`which $MAILBIN`" ] ; then
+  echo "$MAILBIN not found in \$PATH. Consider installing it."
+  exit 1
+fi
+
+## Function helpers
+Usage() {
+cat << EOF
+
+Required parameters:
+  -d LONGDATETIME (\$icinga.long_date_time\$)
+  -e SERVICENAME (\$service.name\$)
+  -l HOSTNAME (\$host.name\$)
+  -n HOSTDISPLAYNAME (\$host.display_name\$)
+  -o SERVICEOUTPUT (\$service.output\$)
+  -r USEREMAIL (\$user.email\$)
+  -s SERVICESTATE (\$service.state\$)
+  -t NOTIFICATIONTYPE (\$notification.type\$)
+  -u SERVICEDISPLAYNAME (\$service.display_name\$)
+
+Optional parameters:
+  -4 HOSTADDRESS (\$address\$)
+  -6 HOSTADDRESS6 (\$address6\$)
+  -b NOTIFICATIONAUTHORNAME (\$notification.author\$)
+  -c NOTIFICATIONCOMMENT (\$notification.comment\$)
+  -i ICINGAWEB2URL (\$notification_icingaweb2url\$, Default: unset)
+  -f MAILFROM (\$notification_mailfrom\$, requires GNU mailutils (Debian/Ubuntu) or mailx (RHEL/SUSE))
+  -v (\$notification_sendtosyslog\$, Default: false)
+
+EOF
+}
+
+Help() {
+  Usage;
+  exit 0;
+}
+
+Error() {
+  if [ "$1" ]; then
+    echo $1
+  fi
+  Usage;
+  exit 1;
+}
+
+urlencode() {
+  local LANG=C i c e=''
+  for ((i=0;i<${#1};i++)); do
+    c=${1:$i:1}
+    [[ "$c" =~ [a-zA-Z0-9\.\~\_\-] ]] || printf -v c '%%%02X' "'$c"
+    e+="$c"
+  done
+  echo "$e"
+}
+
+## Main
+while getopts 4:6:b:c:d:e:f:hi:l:n:o:r:s:t:u:v: opt
+do
+  case "$opt" in
+    4) HOSTADDRESS=$OPTARG ;;
+    6) HOSTADDRESS6=$OPTARG ;;
+    b) NOTIFICATIONAUTHORNAME=$OPTARG ;;
+    c) NOTIFICATIONCOMMENT=$OPTARG ;;
+    d) LONGDATETIME=$OPTARG ;; # required
+    e) SERVICENAME=$OPTARG ;; # required
+    f) MAILFROM=$OPTARG ;;
+    h) Usage ;;
+    i) ICINGAWEB2URL=$OPTARG ;;
+    l) HOSTNAME=$OPTARG ;; # required
+    n) HOSTDISPLAYNAME=$OPTARG ;; # required
+    o) SERVICEOUTPUT=$OPTARG ;; # required
+    r) USEREMAIL=$OPTARG ;; # required
+    s) SERVICESTATE=$OPTARG ;; # required
+    t) NOTIFICATIONTYPE=$OPTARG ;; # required
+    u) SERVICEDISPLAYNAME=$OPTARG ;; # required
+    v) VERBOSE=$OPTARG ;;
+   \?) echo "ERROR: Invalid option -$OPTARG" >&2
+       Usage ;;
+    :) echo "Missing option argument for -$OPTARG" >&2
+       Usage ;;
+    *) echo "Unimplemented option: -$OPTARG" >&2
+       Usage ;;
+  esac
+done
+
+shift $((OPTIND - 1))
+
+## Keep formatting in sync with mail-host-notification.sh
+for P in LONGDATETIME HOSTNAME HOSTDISPLAYNAME SERVICENAME SERVICEDISPLAYNAME SERVICEOUTPUT SERVICESTATE USEREMAIL NOTIFICATIONTYPE ; do
+        eval "PAR=\$${P}"
+
+        if [ ! "$PAR" ] ; then
+                Error "Required parameter '$P' is missing."
+        fi
+done
+
+## Build the message's subject
+SUBJECT="[$NOTIFICATIONTYPE] $SERVICEDISPLAYNAME on $HOSTDISPLAYNAME is $SERVICESTATE!"
+
+## Build the notification message
+NOTIFICATION_MESSAGE=`cat << EOF
+***** Service Monitoring on $ICINGA2HOST *****
+
+$SERVICEDISPLAYNAME on $HOSTDISPLAYNAME is $SERVICESTATE!
+
+Info:    $SERVICEOUTPUT
+
+When:    $LONGDATETIME
+Service: $SERVICENAME
+Host:    $HOSTNAME
+EOF
+`
+
+## Check whether IPv4 was specified.
+if [ -n "$HOSTADDRESS" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
+IPv4:    $HOSTADDRESS"
+fi
+
+## Check whether IPv6 was specified.
+if [ -n "$HOSTADDRESS6" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
+IPv6:    $HOSTADDRESS6"
+fi
+
+## Check whether author and comment was specified.
+if [ -n "$NOTIFICATIONCOMMENT" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
+
+Comment by $NOTIFICATIONAUTHORNAME:
+  $NOTIFICATIONCOMMENT"
+fi
+
+## Check whether Icinga Web 2 URL was specified.
+if [ -n "$ICINGAWEB2URL" ] ; then
+  NOTIFICATION_MESSAGE="$NOTIFICATION_MESSAGE
 
-Service: $SERVICEDESC
-Host: $HOSTALIAS
-Address: $HOSTADDRESS
-State: $SERVICESTATE
+$ICINGAWEB2URL/monitoring/service/show?host=$(urlencode "$HOSTNAME")&service=$(urlencode "$SERVICENAME")"
+fi
 
-Date/Time: $LONGDATETIME
+## Check whether verbose mode was enabled and log to syslog.
+if [ "$VERBOSE" == "true" ] ; then
+  logger "$PROG sends $SUBJECT => $USEREMAIL"
+fi
 
-Additional Info: $SERVICEOUTPUT
+## Send the mail using the $MAILBIN command.
+## If an explicit sender was specified, try to set it.
+if [ -n "$MAILFROM" ] ; then
 
-Comment: [$NOTIFICATIONAUTHORNAME] $NOTIFICATIONCOMMENT
-TEMPLATE
-)
+  ## Modify this for your own needs!
 
-/usr/bin/printf "%b" "$template" | mail -s "$NOTIFICATIONTYPE - $HOSTDISPLAYNAME - $SERVICEDISPLAYNAME is $SERVICESTATE" $USEREMAIL
+  ## Debian/Ubuntu use mailutils which requires `-a` to append the header
+  if [ -f /etc/debian_version ]; then
+    /usr/bin/printf "%b" "$NOTIFICATION_MESSAGE" | $MAILBIN -a "From: $MAILFROM" -s "$SUBJECT" $USEREMAIL
+  ## Other distributions (RHEL/SUSE/etc.) prefer mailx which sets a sender address with `-r`
+  else
+    /usr/bin/printf "%b" "$NOTIFICATION_MESSAGE" | $MAILBIN -r "$MAILFROM" -s "$SUBJECT" $USEREMAIL
+  fi
 
+else
+  /usr/bin/printf "%b" "$NOTIFICATION_MESSAGE" \
+  | $MAILBIN -s "$SUBJECT" $USEREMAIL
+fi