Slackware 12.2 - MRTG ping monitoring
=====================================

Public domain
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### /usr/local/mrtg-2/etc/mrtg-pinger.sh

    #!/bin/bash

    CFGDIR="/usr/local/mrtg-2/etc"
    TMP="/tmp/ping.$$"

    # Check IP parameter
    if [ "$1" == "" ];then
      echo "Usage: $0 <ip>"
      exit
    fi

    # Infinite ping
    while :;do
      ping -c 300 -q $1 > "${TMP}"
      TIMESTAMP=$(date +%s)
      echo -n "${TIMESTAMP} " >> "${CFGDIR}/mrtg-ping-$1.loss"
      grep 'packet loss' "${TMP}" >> "${CFGDIR}/mrtg-ping-$1.loss"
      echo -n "${TIMESTAMP} " >> "${CFGDIR}/mrtg-ping-$1.rtt"
      grep 'rtt' "${TMP}" >> "${CFGDIR}/mrtg-ping-$1.rtt"
      rm "${TMP}"
      sleep 1
    done


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### /usr/local/mrtg-2/etc/mrtg-ping-avg.sh

    #!/bin/bash

    CFGDIR="/usr/local/mrtg-2/etc"
    HOST=$(hostname)
    UPTIME=$(cat /proc/uptime | sed -e 's,\..*,,')
    H=$(( $UPTIME / 3600 ))
    M=$(( ($UPTIME - $H * 3600) / 60  ))

    # Check IP parameter
    if [ "$1" == "" ];then
      echo "Usage: $0 <ip>"
      exit
    fi

    AVG=$(tail -1 "${CFGDIR}/mrtg-ping-${1}.rtt" | awk -F '/' '{print$5}')

    echo $AVG
    echo $AVG
    echo $H:$M
    echo $HOST


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### /usr/local/mrtg-2/etc/mrtg-ping-loss.sh

    #!/bin/bash

    CFGDIR="/usr/local/mrtg-2/etc"
    HOST=$(hostname)
    UPTIME=$(cat /proc/uptime | sed -e 's,\..*,,')
    H=$(( $UPTIME / 3600 ))
    M=$(( ($UPTIME - $H * 3600) / 60  ))

    # Check IP parameter
    if [ "$1" == "" ];then
      echo "Usage: $0 <ip>"
      exit
    fi

    LOSS=$(tail -1 "${CFGDIR}/mrtg-ping-${1}.loss" | sed -e 's,% packet loss.*,,' -e 's,.* ,,')

    echo $LOSS
    echo $LOSS
    echo $H:$M
    echo $HOST

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### /usr/local/mrtg-2/etc/mrtg-ping-cron.sh

    #!/bin/bash
    # crontab -e
    #   */5 * * * * /usr/local/mrtg-2/etc/mrtg-ping-cron.sh 8.8.8.8 4.2.2.4 yahoo.com &> /dev/null

    # Variables
    MAX="5000"
    WORKDIR="/var/www/htdocs/ping"
    CFGDIR="/usr/local/mrtg-2/etc"
    CFGFILE="${CFGDIR}/mrtg-ping.cfg"
    PATH="/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/mrtg-2/bin/"

    # Check for ip parameter
    if [ "$#" == "0" ];then
      echo "Usage: $0 <ip> ..."
      exit 1
    fi

    # Create directories if not exist
    mkdir -p "${WORKDIR}"
    mkdir -p "${CFGDIR}"

    # Create a fresh config file
    echo "WorkDir: ${WORKDIR}" > "${CFGFILE}"
    echo  >> "${CFGFILE}"

    for I in $(seq 1 $#); do

      # RTT

      echo "Target[${!I}.rtt]: \`${CFGDIR}/mrtg-ping-avg.sh ${!I}\`"  >> ${CFGFILE}
      echo "Options[${!I}.rtt]: unknaszero,nopercent,gauge"  >> ${CFGFILE}
      echo "Title[${!I}.rtt]: RTT to ${!I}"  >> ${CFGFILE}
      echo "PageTop[${!I}.rtt]: <H1>Round Trip Time to ${!I} </H1>"  >> ${CFGFILE}
      echo "MaxBytes[${!I}.rtt]: $MAX"  >> ${CFGFILE}
      echo "Colours[${!I}.rtt]: YELLOW#F9C000,RED#F90000,DARKGREEN#006600,VIOLET#FF00FF"  >> ${CFGFILE}
      echo "YLegend[${!I}.rtt]: RTT (ms)"  >> ${CFGFILE}
      echo "LegendI[${!I}.rtt]:     "  >> ${CFGFILE}
      echo "LegendO[${!I}.rtt]: Avg RTT (ms)"  >> ${CFGFILE}
      echo "XSize[${!I}.rtt]: 300"  >> ${CFGFILE}
      echo "YSize[${!I}.rtt]: 200"  >> ${CFGFILE}
      echo "Legend1[${!I}.rtt]:     "  >> ${CFGFILE}
      echo "Legend2[${!I}.rtt]: Round Trip Time in millisecond"  >> ${CFGFILE}
      echo "ShortLegend[${!I}.rtt]:     "  >> ${CFGFILE}
      echo "kMG[${!I}.rtt]: ,,"  >> ${CFGFILE}
      echo  >> ${CFGFILE}

      # LOSS

      echo "Target[${!I}.loss]: \`${CFGDIR}/mrtg-ping-loss.sh ${!I}\`"  >> ${CFGFILE}
      echo "Options[${!I}.loss]: unknaszero,nopercent,gauge,integer"  >> ${CFGFILE}
      echo "Title[${!I}.loss]: Pkt loss to ${!I}"  >> ${CFGFILE}
      echo "PageTop[${!I}.loss]: <H1>Packet Loss to ${!I} </H1>"  >> ${CFGFILE}
      echo "MaxBytes[${!I}.loss]: 100"  >> ${CFGFILE}
      echo "Colours[${!I}.loss]: YELLOW#F9C000,RED#F90000,DARKGREEN#006600,VIOLET#FF00FF"  >> ${CFGFILE}
      echo "YLegend[${!I}.loss]: Loss %"  >> ${CFGFILE}
      echo "LegendI[${!I}.loss]:     "  >> ${CFGFILE}
      echo "LegendO[${!I}.loss]: Pkt Loss %"  >> ${CFGFILE}
      echo "XSize[${!I}.loss]: 300"  >> ${CFGFILE}
      echo "YSize[${!I}.loss]: 200"  >> ${CFGFILE}
      echo "Legend1[${!I}.loss]:     "  >> ${CFGFILE}
      echo "Legend2[${!I}.loss]: Packt Loss percentage"  >> ${CFGFILE}
      echo "ShortLegend[${!I}.loss]:  %   "  >> ${CFGFILE}
      #echo "Unscaled[${!I}.loss]: ymwd"  >> ${CFGFILE}
      #echo "kMG[${!I}.loss]: ,,"  >> ${CFGFILE}
      echo  >> ${CFGFILE}

    done

    # Create index file
    indexmaker "${CFGFILE}" > "${WORKDIR}/index.html"

    # Change title of index file
    HOST=$(hostname)
    sed -i -e "s,MRTG Index Page,${HOST} - Ping Monitoring," ${WORKDIR}/index.html

    # Lunch
    mrtg "${CFGFILE}" &> /dev/null

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### Commands

    chmod +x /usr/local/mrtg-2/etc/mrtg-pinger.sh
    chmod +x /usr/local/mrtg-2/etc/mrtg-ping-avg.sh
    chmod +x /usr/local/mrtg-2/etc/mrtg-ping-loss.sh
    chmod +x /usr/local/mrtg-2/etc/mrtg-ping-cron.sh 


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### /etc/rc.d/rc.local

    # MRTG Pinger
    /usr/local/mrtg-2/etc/mrtg-pinger.sh 8.8.8.8   &> /dev/null &
    /usr/local/mrtg-2/etc/mrtg-pinger.sh 4.2.2.4   &> /dev/null &
    /usr/local/mrtg-2/etc/mrtg-pinger.sh yahoo.com &> /dev/null &


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### crontab -e

    # MRTG
    */5 * * * * /usr/local/mrtg-2/etc/mrtg-ping-cron.sh 8.8.8.8 4.2.2.4 yahoo.com &> /dev/null


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_BY: Pejman Moghadam_  
_TAG: mrtg, ping_  
_DATE: 2010-10-02 15:41:12_