From a97dd2781e54fec72215c42817672b7c964e1d67 Mon Sep 17 00:00:00 2001
From: Christoph <ckubu@oopen.de>
Date: Tue, 21 Feb 2017 01:19:22 +0100
Subject: [PATCH] Add more checl-scripts

---
 OLD/check_amavis.sh      |  26 ++++
 OLD/check_dsl.sh         | 324 +++++++++++++++++++++++++++++++++++++++
 OLD/check_inet.sh        |  48 ++++++
 OLD/high_load_warning.sh |  30 ++++
 check_cups.sh            |  22 +++
 check_dns.sh             |  20 +++
 check_dyndns.sh          | 107 +++++++++++++
 check_forwarding.sh      |  17 ++
 check_ntpd.sh            |  22 +++
 check_resin.sh           |  30 ++++
 check_samba4_service.sh  |  28 ++++
 check_vpn.sh             |  13 ++
 12 files changed, 687 insertions(+)
 create mode 100755 OLD/check_amavis.sh
 create mode 100755 OLD/check_dsl.sh
 create mode 100755 OLD/check_inet.sh
 create mode 100644 OLD/high_load_warning.sh
 create mode 100755 check_cups.sh
 create mode 100755 check_dns.sh
 create mode 100755 check_dyndns.sh
 create mode 100755 check_forwarding.sh
 create mode 100755 check_ntpd.sh
 create mode 100755 check_resin.sh
 create mode 100755 check_samba4_service.sh
 create mode 100755 check_vpn.sh

diff --git a/OLD/check_amavis.sh b/OLD/check_amavis.sh
new file mode 100755
index 0000000..b0f827d
--- /dev/null
+++ b/OLD/check_amavis.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+_check_script="/root/bin/amavis_ckeck.pl"
+
+if [ -x $_check_script ]; then
+   _check_result=`$_check_script --server 127.0.0.1 --from postmaster --to do-not-reply --port 10024`
+   _retval=$?
+else
+   echo
+   echo "[ Error ]: Cannot find check script \"$_check_script\""
+   echo
+   exit 1
+fi
+
+if [ "$_retval" != "0" ]; then
+   echo
+   echo "[ Error ]: Amavis seems NOT to be running. trying to (re)start service.."
+   echo
+
+   /etc/init.d/amavis stop > /dev/null 2>&1
+   sleep 2
+   /etc/init.d/amavis start > /dev/null 2>&1
+fi
+
+
+exit 0
diff --git a/OLD/check_dsl.sh b/OLD/check_dsl.sh
new file mode 100755
index 0000000..0e64636
--- /dev/null
+++ b/OLD/check_dsl.sh
@@ -0,0 +1,324 @@
+#!/usr/bin/env bash
+
+
+## --------------------------
+## --- Make your changes here
+## --------------------------
+
+LOGGING_CONSOLE=false
+DEBUG=false
+
+log_file=/var/log/check_dsl.log
+
+## - Put in your DSL devices (refers to your network configuration)
+## - youe wish be congigured by that script
+## -
+DSL_DEVICES="ppp-surf2 ppp-surf1 ppp-st"
+
+admin_email=root
+from_address="check-dsl@`hostname -f`"
+company="Gemeinschaft Altenschlirf"
+content_type='Content-Type: text/plain;\n charset="utf-8"'
+
+##########################################
+## --- Dont't make changes after this line
+##########################################
+
+## ------------------
+## --- Some functions
+## ------------------
+
+## - Check if a given array (parameter 2) contains a given string (parameter 1)
+## -
+containsElement () {
+   local e
+   for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
+   return 1
+}
+
+## -------------------------------------------------
+## --- If script is  already running, stop execution
+## -------------------------------------------------
+
+LOCK_DIR=/tmp/`basename $0`.LOCK
+if mkdir "$LOCK_DIR" 2> /dev/null ; then
+
+   ## - Remove lockdir when the script finishes, or when it receives a signal
+   trap 'rm -rf "$LOCK_DIR"' 0 2 15
+
+else
+
+   datum=`date +"%d.%m.%Y"`
+   msg="[ Error ]: A previos instance of script \"`basename $0`\" seems already be running.\n\n           Exiting now.."
+   echo -e "To:${admin_email}\n${content_type}\nSubject:DSL Script Error $company -- $datum\n\n${msg}\n" | /usr/sbin/sendmail -F "DSL Monitoring $company" -f $from_address $admin_email
+
+   if $LOGGING_CONSOLE ; then
+      echo ""
+      echo "[ Error ]: A previos instance script \"`basename $0`\" seems already be running."
+      echo ""
+      echo "           Exiting now.."
+      echo ""
+   fi
+   exit 1
+
+fi
+
+
+## - Define (non associative) array
+## -
+declare -a dsl_devices_arr
+for _dsl_device in $DSL_DEVICES ; do
+   dsl_devices_arr+=("$_dsl_device")
+done
+declare -a online_devices_arr
+for _online_device in "$@" ; do
+   online_devices_arr+=("$_online_device")
+done
+
+## - Define associative array
+## -
+declare -A remote_gw_arr
+declare -A filetime_PID_arr
+for dsl_device in "${online_devices_arr[@]}" ; do
+   remote_gw_address=`ifconfig $dsl_device 2> /dev/null | grep "inet Adresse"  | cut -d":" -f3 | cut -d" " -f1`
+   remote_gw_arr[$dsl_device]=$remote_gw_address
+   _pid_file=/var/run/${dsl_device}.pid
+   if [ -f $_pid_file ]; then
+      filetime_PID_arr[$dsl_device]=`stat -c %Y /var/run/${dsl_device}.pid`
+   else
+      filetime_PID_arr[$dsl_device]="NOT FOUND"
+   fi
+done
+
+ping_test_hosts="oopen.de google.com heise.de debian.org ubuntu.com"
+declare -a ping_ip_arr;
+
+
+#for _key in "${!filetime_PID_arr[@]}" ; do
+#   echo "filetime_PID_arr[$_key]: ${filetime_PID_arr[$_key]}"
+#done
+
+#for _key in "${!remote_gw_arr[@]}" ; do
+#   echo "remote_gw_arr[$_key]: ${remote_gw_arr[$_key]}"
+#done
+
+#for _device in ${online_devices_arr[@]} ; do
+#   echo "$_device"
+#done
+
+echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] ## ---" >> $log_file
+echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] ## --- Starting script `basename $0`" >> $log_file
+echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] ## --- Devices Online...: ${online_devices_arr[@]}" >> $log_file
+echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] ## --- Remote Gateways..: ${remote_gw_arr[@]}" >> $log_file
+echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] ## ---" >> $log_file
+
+while true ; do
+
+   changed=false
+
+   for dsl_device in "${dsl_devices_arr[@]}" ; do
+
+      if $DEBUG ; then
+         echo "`date +'%Y-%m-%d %H:%M:%S'` [ Debug ] ## --- Device $dsl_device " >> $log_file
+      fi
+
+      remote_gw_address=`ifconfig $dsl_device 2> /dev/null | grep "inet Adresse"  | cut -d":" -f3 | cut -d" " -f1`
+      iface_name="dsl-`echo $dsl_device | cut -d '-' -f2`"
+      rt_name="dsl_`echo $dsl_device | cut -d '-' -f2`"
+
+      if [ -z "$remote_gw_address" ]; then
+
+         if containsElement "$dsl_device" ${online_devices_arr[@]} ; then
+
+            ## - <before>  <now>
+            ## -
+            ## -  online    offline
+            echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] Status Devices \"$dsl_device\" changed" >> $log_file
+            echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] Devices \"$dsl_device\" is now OFFLINE" >> $log_file
+
+            if ps -x | grep -E "/usr/sbin/pppd\s+call\s+$iface_name" > /dev/null 2>&1 ; then
+               echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] pppd for \"$iface_name\" is running: Waiting another period"  >> $log_file
+            else
+               echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] Trying to start pppd for \"$dsl_device\".." >> $log_file
+               /usr/sbin/pppd call $iface_name > /dev/null 2>&1
+            fi
+
+            ## - Remove device from array online_devices_arr
+            ## - 
+            for _index in ${!online_devices_arr[@]} ; do
+               if [ "${online_devices_arr[$_index]}" = "$dsl_device" ]; then
+                  unset online_devices_arr[$_index]
+                  break
+               fi
+            done
+            ## - Also remove device from remote_gw_arr
+            ## -
+            unset remote_gw_arr[$dsl_device]
+
+            changed=true
+         else
+            ## - <before>  <now>
+            ## -
+            ## -  offline   offline
+            if $DEBUG ; then
+               echo "`date +'%Y-%m-%d %H:%M:%S'` [ Debug ] $dsl_device is still offline" >> $log_file
+            fi
+
+            if ps -x | grep -E "/usr/sbin/pppd\s+call\s+$iface_name" > /dev/null 2>&1 ; then
+               echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] pppd for \"$iface_name\" is running: Waiting another period"  >> $log_file
+            else
+               echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] Trying to start pppd for \"$dsl_device\".." >> $log_file
+               /usr/sbin/pppd call $iface_name > /dev/null 2>&1
+            fi
+
+         fi
+      else
+
+         if containsElement "$dsl_device" ${online_devices_arr[@]} ; then
+
+            ## - <before>  <now>
+            ## -
+            ## -  online    online
+            if $DEBUG ; then
+               echo "`date +'%Y-%m-%d %H:%M:%S'` [ Debug ] $dsl_device is still online" >> $log_file
+            fi
+
+            ## - Check if remote gateway has changed
+            ## -
+            if [ "$remote_gw_address" != "${remote_gw_arr[$dsl_device]}" ]; then
+               echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] Remote Gateway on device \"$dsl_device\" has changed: ${remote_gw_arr[$dsl_device]} --> $remote_gw_address" >> $log_file
+               remote_gw_arr[$dsl_device]=$remote_gw_address
+               filetime_PID_arr[$dsl_device]=`stat -c %Y /var/run/${dsl_device}.pid`
+               changed=true
+            else
+               if $DEBUG ; then
+                  echo "`date +'%Y-%m-%d %H:%M:%S'` [ Debug ] Remote Gateway on device \"$dsl_device\": still ${remote_gw_arr[$dsl_device]}" >> $log_file
+               fi
+
+               ## - Test if pid-file's modify time hs changed
+               ## -
+               ## - Notice: that happens if your provider forces a reconnect (mostly one time a day
+               ## -         or in other words after 1440 minutes)
+               ## -
+               _pid_file=/var/run/${dsl_device}.pid
+               if [ -f $_pid_file ]; then
+                  if [ "`stat -c %Y $_pid_file`" != "${filetime_PID_arr[$dsl_device]}" ]; then
+                     echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] Modify time for pid-file \"${dsl_device}.pid\" has changed" >> $log_file
+                     filetime_PID_arr[$dsl_device]=`stat -c %Y $_pid_file`
+                     changed=true
+                  else
+
+                     ## - Check if routing through this dsl connection realy works
+                     ## -
+                     failed=true
+                     if [ ${#ping_ip_arr[@]} -lt 1 ]; then
+                        echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] No ip-address for ping-test is set. Skipping test.." >> $log_file
+                     else
+                        for _key in ${!ping_ip_arr[@]} ; do
+                           /sbin/ip rule add to ${ping_ip_arr[$_key]} table $rt_name
+                           if ping -q -c2 ${ping_ip_arr[$_key]} >/dev/null 2>&1 ; then
+                              if $DEBUG ; then
+                                 _local_gw=`curl -4 https://meine-ip.oopen.de 2> /dev/null` 
+                                 if [ -n "$_local_gw" ]; then
+                                    echo "`date +'%Y-%m-%d %H:%M:%S'` [ Debug ] Using local gateway \"$_local_gw\" for ping test" >> $log_file
+                                 fi
+                                 echo "`date +'%Y-%m-%d %H:%M:%S'` [ Debug ] Ping test (to ${ping_ip_arr[$_key]}) for device \"${dsl_device}\" was successful." >> $log_file
+                              fi
+                              /sbin/ip rule del to ${ping_ip_arr[$_key]} table $rt_name
+                              failed=false
+                              break
+                           fi
+                           /sbin/ip rule del to ${ping_ip_arr[$_key]} table $rt_name
+                        done
+                        if $failed ; then
+                           echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] Ping test for device \"${dsl_device}\" failed" >> $log_file
+i                          echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] Status Devices \"$dsl_device\" changed" >> $log_file
+                           echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] Devices \"$dsl_device\" is now OFFLINE" >> $log_file
+                           _pid=`ps -ax | grep -e "pppd call $iface_name" | grep -v grep | awk '{print$1}'`
+                           echo "`date +'%Y-%m-%d %H:%M:%S'` [ Info  ] Kill ppp-daemon for $iface_name (pid $_pid)" >> $log_file
+
+                           ## - Remove device from array online_devices_arr
+                           ## - 
+                           for _index in ${!online_devices_arr[@]} ; do
+                              if [ "${online_devices_arr[$_index]}" = "$dsl_device" ]; then
+                                 unset online_devices_arr[$_index]
+                                 break
+                              fi
+                           done
+                           ## - Also remove device from remote_gw_arr
+                           ## -
+                           unset remote_gw_arr[$dsl_device]
+
+                           kill -9 $_pid
+                           changed=true
+                        fi
+                        
+                     fi
+                  fi
+               else
+                  filetime_PID_arr[$dsl_device]="NOT FOUND"
+                  echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] No pid-file for connection \"${dsl_device}\"found" >> $log_file
+                  changed=true
+               fi
+
+            fi
+
+         else
+            ## - <before>  <now>
+            ## -
+            ## -  offline   online
+            echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] Status Devices \"$dsl_device\" changed" >> $log_file
+            echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] Devices \"$dsl_device\" is now online" >> $log_file
+
+            ## - Add device to array online_devices_arr
+            ## -            
+            online_devices_arr+=("$dsl_device")
+            remote_gw_arr[$dsl_device]=$remote_gw_address
+            filetime_PID_arr[$dsl_device]=`stat -c %Y /var/run/${dsl_device}.pid`
+            changed=true
+         fi
+
+      fi
+
+   done
+
+   if $changed ; then
+      echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] Status Online Devices changed" >> $log_file
+      echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] Online Devices: ${online_devices_arr[@]}" >> $log_file
+      echo "`date +'%Y-%m-%d %H:%M:%S'` [ Warn  ] Reconfigure Routing: invoking script \"netconfig_dsl.sh\".." >> $log_file
+      /root/bin/netconfig_dsl.sh > /dev/null 2>&1
+      #/root/bin/netconfig_dsl_round-robin.sh > /dev/null 2>&1
+
+      datum=`date +"%d.%m.%Y"`
+      msg="[ `date +\"%H:%M:%S\"` ]: Status Online Devices changed..\n              Online Devices: ${online_devices_arr[@]}\n\n              Script \"netconfig_dsl.sh\" was invoked to reconfigure routing."
+      echo -e "To:${admin_email}\n${content_type}\nSubject:DSL Status changed $company -- $datum\n\n${msg}\n" | /usr/sbin/sendmail -F "DSL Monitoring $company" -f $from_address $admin_email
+   fi
+
+   ## - Set IP-adresses for Ping-Test at next run
+   ## -
+   if [ ${#online_devices_arr[@]} -gt 0 ]; then
+      ping_test_ip=""
+      unset ping_ip_arr 
+      declare -i i=0
+      for _host in $ping_test_hosts ; do
+         while [ $i -lt 2 ]; do
+            ping_test_ip=`dig +short $_host | head -1`
+            if ping -q -c2 $ping_test_ip >/dev/null 2>&1 ; then
+               ping_ip_arr+=("$ping_test_ip")
+               let i++
+               break
+            fi
+         done
+      done
+
+      if [ ${#ping_ip_arr[@]} -lt 1 ]; then
+         echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] No ip-address for ping test found " >> $log_file
+         echo "`date +'%Y-%m-%d %H:%M:%S'` [ Error ] Looked for IP-Addresses at hosts: $ping_test_hosts" >> $log_file
+      fi
+
+   fi
+
+   sleep 30
+done
+
+exit 0
diff --git a/OLD/check_inet.sh b/OLD/check_inet.sh
new file mode 100755
index 0000000..73c9f1f
--- /dev/null
+++ b/OLD/check_inet.sh
@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+ptp_addr=`ifconfig  ppp0 2>/dev/null | grep -e "P-[tz]-P" | cut -d":" -f3 | cut -d " " -f1`
+
+alternate_addr="google.com heise.de debian.org ubuntu.com"
+
+reconnect() {
+   ifdown dsl-provider >/dev/null 2> /dev/null
+   sleep 5
+   killall -9 pppd > /dev/null 2> /dev/null
+   sleep 5
+   ifup dsl-provider >/dev/null 2> /dev/null
+   sleep 5
+   ptp_addr=`ifconfig  ppp0 2>/dev/null | grep -e "P-[tz]-P" | cut -d":" -f3 | cut -d " " -f1`
+   if [ "X$ptp_addr" == "X" ] ; then
+      echo "[ Error ]: reconnection host `hostname --long` failed at `date +\"%d.%m.%Y %H:%M:%S\"`"
+   else
+      echo "[  OK   ]: `hostname --long` reconnected at `date +\"%d.%m.%Y %H:%M:%S\"`"
+   fi
+   echo ""
+   echo "`df`"
+}
+
+if [ "X$ptp_addr" == "X" ] ; then
+   echo "[ Error ]: Internetconnection seems to be down!"
+   echo "           Trying to reconnect.."
+   echo ""
+   reconnect
+else
+   ping -c3 $ptp_addr >/dev/null 2> /dev/null
+   rval=$?
+   if [ $rval -ne  0 ]; then
+      for ip_addr in $alternate_addr  ; do
+         ping -c3 $ip_addr >/dev/null 2> /dev/null
+         if [ $? -eq 0 ]; then
+            exit 0
+         fi
+      done;
+      echo "[ Error ]: Internetconnection seems to be down!"
+      echo "           Trying to reconnect.."
+      echo ""
+      reconnect
+   fi
+fi
+   
+exit 0;
diff --git a/OLD/high_load_warning.sh b/OLD/high_load_warning.sh
new file mode 100644
index 0000000..dd42a9f
--- /dev/null
+++ b/OLD/high_load_warning.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+fatal(){
+   echo ""
+   echo -e "Error: $*"
+   echo ""
+   echo -e "\tScript terminated.."
+   echo ""
+   exit 1
+}
+## - Number of processors
+## -
+declare -i number_processors=`grep -E "processor\s+:\s+" /proc/cpuinfo -c`
+
+
+if [ -n "$number_processors" -o $number_processors -eq 0 ]; then
+   fatal 'Detecting number of prozessors failed!'
+fi
+
+
+if [ $number_processors -gt 8 ]; then
+
+   threshod_1_min=`echo "$number_processors / 2" | bc`
+   threshod_10_min=`echo "$number_processors / 3" | bc`
+   threshod_15_min=`echo "$number_processors / 3" | bc`
+else
+   threshod_1_min=`echo "$number_processors"`
+   threshod_10_min=`echo "$number_processors /1.5"`
+fi
+threshod_15_min=$threshod_10_min
diff --git a/check_cups.sh b/check_cups.sh
new file mode 100755
index 0000000..ea4aa6a
--- /dev/null
+++ b/check_cups.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+## - Check if cups service is runnning. If service is down
+## - start it.
+## -
+
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+if !  ps ax | grep /usr/sbin/cupsd | grep -v grep > /dev/null ; then
+
+   echo -e "\n\tCups Daemon is not running. So i'm going to (re)start the cups service..\n"
+
+   /etc/init.d/cups stop
+
+   kill -9 `cat /var/run/cups/cupsd.pid 2>/dev/null` > /dev/null 2>&1
+   rm -f /var/run/cups/cupsd.pid
+
+   ## - Start cups daemon
+   /etc/init.d/cups start
+fi
+
+exit 0
diff --git a/check_dns.sh b/check_dns.sh
new file mode 100755
index 0000000..c505b85
--- /dev/null
+++ b/check_dns.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+alternate_addr="oopen.de google.com heise.de debian.org ubuntu.com"
+
+for ip_addr in $alternate_addr  ; do
+   ping -c3 $ip_addr >/dev/null 2> /dev/null
+   if [ $? -eq 0 ]; then
+      exit 0
+   fi
+done;
+
+/etc/init.d/bind9 restart
+
+echo ""
+echo "[ Info ]: Restartet Nameservice bind on host `hostname --long` at `date +\"%d.%m.%Y %H:%M:%S\"`"
+echo ""
+   
+exit 0;
diff --git a/check_dyndns.sh b/check_dyndns.sh
new file mode 100755
index 0000000..c7fdd4a
--- /dev/null
+++ b/check_dyndns.sh
@@ -0,0 +1,107 @@
+#!/usr/bin/env bash
+
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+function usage() {
+
+        echo
+
+        if [ -n "$1" ];then
+           echo -e "Error: $1\n"
+        fi
+        echo -e ""
+        echo -e "\tusage: `basename $0` < dyndns-name>\n"
+        exit 1
+}
+
+
+[ $# -eq "0" -o $# -gt "2" ] && usage "wrong number of arguments"
+
+DYNDNS_NAME=$1
+
+_SKIP_IP=false
+
+
+
+
+## - only run ddclient, if it is installed
+## -
+if [ ! -x "/usr/sbin/ddclient" ]; then
+   exit 0
+fi
+
+
+if [ -f "/etc/ddclient.conf" ]; then
+
+   ## - read variable "if" from configurationd file "/etc/ddclient.conf"
+   ## -
+   eval `sed -n 's/\(if=[^       ,]*\)/\1/p' /etc/ddclient.conf`
+
+   ## - check if interface used by dyndns is present
+   ##
+   if [ -n "$if" ];then
+      for _IFACE in `ifconfig | grep -e"^ppp" | cut -d" " -f1 `; do
+         if [ "$_IFACE" = $if ];then
+            PPP_IFACE=$_IFACE
+            break
+         fi
+      done
+
+      ## - exit if no connection for dydns interface exists
+      ## -
+      if [ "X" = "X$PPP_IFACE" ]; then
+         echo "No interface for dydns exists. exiting now.."
+         exit 0
+      fi
+
+   else
+      _SKIP_IP=true
+   fi
+else
+   ## - No configuration file found, so do not run
+   ## -
+   echo "No configuration file \"/etc/ddclient.conf\" found, so do not run"
+   exit 0
+fi
+
+
+if ! $_SKIP_IP ; then
+   PPP_REMOTE=`ifconfig  $PPP_IFACE 2>/dev/null | grep -e "P-[tz]-P" | cut -d":" -f3 | cut -d " " -f1`
+   PPP_LOCAL=`ifconfig  $PPP_IFACE 2>/dev/null | grep -e "P-[tz]-P" | cut -d":" -f2 | cut -d " " -f1`
+fi
+
+
+if [ "X$PPP_REMOTE" != "X" -a "X$PPP_LOCAL" != "X" ] ; then
+
+   if $_SKIP_IP ; then
+
+      # Load defaults
+      if [ -f /etc/default/ddclient ]; then
+         
+         source /etc/default/ddclient
+         if [ "$run_daemon" = "true" ]; then
+            exit 0
+         fi
+      fi
+
+      /usr/sbin/ddclient
+
+   else
+
+      DYNDNS_IP=`dig $DYNDNS_NAME +short`
+      #echo "$DYNDNS_NAME: $DYNDNS_IP - Local (PPP) IP: $PPP_LOCAL"
+
+      if [ "$DYNDNS_IP" != "$PPP_LOCAL" ] ; then
+
+         ## - Run ddclient with the IP address of the ppp device
+         ## -
+         echo "try to update ipadress entry at dyndns.org.."
+         echo
+         /usr/sbin/ddclient -syslog -ip $PPP_LOCAL
+      fi
+
+   fi
+
+fi
+
+exit 0;
diff --git a/check_forwarding.sh b/check_forwarding.sh
new file mode 100755
index 0000000..414d98d
--- /dev/null
+++ b/check_forwarding.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+declare -i val=`cat /proc/sys/net/ipv4/ip_forward`
+
+
+if [ $val == 0 ] ; then
+   echo "activate forwarding .."
+   echo 1 > /proc/sys/net/ipv4/ip_forward
+fi
+
+val=`cat /proc/sys/net/ipv4/ip_dynaddr`
+if [ $val == 0 ] ; then
+   echo "activate dynaddr .."
+   echo 5 > /proc/sys/net/ipv4/ip_dynaddr
+fi
+
+exit
diff --git a/check_ntpd.sh b/check_ntpd.sh
new file mode 100755
index 0000000..4307ea4
--- /dev/null
+++ b/check_ntpd.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+## - Check if ntp service is running. (Re)start service, if
+## - it is down.
+## -
+
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+if !  ps ax | grep /usr/sbin/ntpd | grep -v grep > /dev/null ; then
+
+   echo -e "\n\tNTP Daemon is not running. so i'm going to (re)start the ntp service..\n"
+
+   /etc/init.d/ntp stop
+
+   kill -9 `cat /var/run/ntpd.pid 2>/dev/null` > /dev/null 2>&1
+   rm -f /var/run/ntpd.pid
+
+   ## - Start  ntp daemon
+   /etc/init.d/ntp start
+fi
+
+exit 0
diff --git a/check_resin.sh b/check_resin.sh
new file mode 100755
index 0000000..65588c6
--- /dev/null
+++ b/check_resin.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+## - check resin service
+## -
+
+PID_SOLR=`ps ax | grep java | grep -e "-jar" | grep  start.jar | grep -v grep | awk '{print$1}'`
+if [ "X${PID_SOLR}X" = "XX" ]; then
+   /etc/init.d/resin-app stop
+   PID_RESIN=`ps aux | grep "/usr/local/resin" | grep -v grep | awk '{print$2}'`
+   while [ "X${PID_RESIN}X" != "XX" ]; do
+      kill -9 $PID_RESIN
+      sleep 1
+      PID_RESIN=`ps aux | grep "/usr/local/resin" | grep -v grep | awk '{print$2}'`
+   done
+   /etc/init.d/resin-app start
+else
+   PID_RESIN=`ps aux | grep "/usr/local/resin" | grep -v grep | awk '{print$2}'`
+   if [ "X${PID_RESIN}X" == "XX" ]; then
+      /etc/init.d/resin-app stop
+      PID_SOLR=`ps ax | grep java | grep -e "-jar" | grep  start.jar | grep -v grep | awk '{print$1}'`
+      while [ "X${PID_SOLR}X" != "XX" ]; do
+         kill -9 $PID_SOLR
+         sleep 1
+         PID_SOLR=`ps aux | grep "/usr/local/resin" | grep -v grep | awk '{print$2}'`
+      done
+      /etc/init.d/resin-app start
+   fi
+fi
+
+exit 0
diff --git a/check_samba4_service.sh b/check_samba4_service.sh
new file mode 100755
index 0000000..2a57f9f
--- /dev/null
+++ b/check_samba4_service.sh
@@ -0,0 +1,28 @@
+#"!/usr/bin/env bash
+
+PIDS=`ps aux | grep "/usr/local/samba/sbin/samba" | grep -v grep | awk '{print$2}'`
+
+if [ "X${PIDS}X" = "XX" ];then
+   echo -e "\n[Error]: Samba Service seems to be down. Try to (re)start .."
+   /etc/init.d/samba4 stop > /dev/null 2>&1
+   /etc/init.d/samba4 start > /dev/null
+   sleep 2
+   NEW_PIDS=`ps aux | grep "/usr/local/samba/sbin/samba" | grep -v grep | awk '{print$2}'`
+   if [ "X${NEW_PIDS}X" = "XX" ]; then
+      echo -e ""
+      echo -e "\t[Error]: Restarting samba services failed !!"
+      echo -e "\n\t[Error]: Restarting samba services failed !!\n"
+      echo -e ""
+   else
+      PIDS=""
+      for pid in $NEW_PIDS ; do
+         PIDS="$PIDS $pid"
+      done
+      echo -e
+      echo -e "\tI have restarted the samba services. The new PIDs are $PIDS"
+      echo -e
+   fi
+fi
+
+exit 0
+
diff --git a/check_vpn.sh b/check_vpn.sh
new file mode 100755
index 0000000..0467e2f
--- /dev/null
+++ b/check_vpn.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+if !  ps ax | grep openvpn | grep -v grep > /dev/null  ; then 
+   echo -e "\n\tOpenVPN is not running. so i'm going to (re)start the vpn service..\n"
+   /etc/init.d/openvpn stop
+   kill -9 `cat /var/run/openvpn.server.pid 2>/dev/null` > /dev/null 2>&1
+   rm -f /var/run/openvpn.server.pid
+   /etc/init.d/openvpn start 
+fi
+
+exit 0;