95 lines
1.9 KiB
Bash
95 lines
1.9 KiB
Bash
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#!/bin/bash
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# DNS Plugin Pandora FMS Server plugin
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# (c) Antonio Delgado, Sancho Lerena 2010
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# Hint: Use this DNS servers as reference:
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# Google: 8.8.8.8
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# Telefonica: 194.179.1.101
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function help {
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echo -e "DNS Plugin for Pandora FMS Plugin server. http://pandorafms.com"
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echo " "
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echo "This plugin is used to check if a specific domain return a specific IP "
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echo -e "address, and to check how time (milisecs) takes the DNS to answer. \n"
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echo -e "Syntax:"
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echo -e "\t\t-d domain to check"
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echo -e "\t\t-i IP address to check with domain"
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echo -e "\t\t-s DNS Server to check"
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echo -e "\t\t-t Do a DNS time response check instead DNS resolve test"
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echo -e "Samples:"
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echo " ./dns_plugin.sh -d artica.es -i 69.163.176.17 -s 8.8.8.8"
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echo " ./dns_plugin.sh -d artica.es -t -s 8.8.8.8"
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echo ""
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exit
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}
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if [ $# -eq 0 ]
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then
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help
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fi
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TIMEOUT_CHECK=0
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DOMAIN_CHECK=""
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IP_CHECK=""
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DNS_CHECK=""
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# Main parsing code
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while getopts ":htd:i:s:" optname
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do
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case "$optname" in
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"h")
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help
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;;
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"d")
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DOMAIN_CHECK=$OPTARG
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;;
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"t")
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TIMEOUT_CHECK=1
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;;
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"i")
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IP_CHECK=$OPTARG
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;;
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"s")
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DNS_CHECK=$OPTARG
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;;
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?)
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help
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;;
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default)
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help
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;;
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esac
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done
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if [ -z "$DNS_CHECK" ]
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then
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help
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fi
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TMPFILE=/tmp/dns_$DNS_CHECK.tmp
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dig @$DNS_CHECK $DOMAIN_CHECK > $TMPFILE
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RETURN_IP=`cat $TMPFILE | grep "^$DOMAIN_CHECK" | awk '{print $5}'`
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RETURN_TIMEOUT=`cat $TMPFILE | grep "Query time" | grep -o "[0-9]*"`
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rm $TMPFILE 2> /dev/null
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if [ $TIMEOUT_CHECK == 1 ]
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then
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echo $RETURN_TIMEOUT
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exit 0
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fi
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if [ "$RETURN_IP" != "$IP_CHECK" ]
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then
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echo 0
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exit 1
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else
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echo 1
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exit 0
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fi
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