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check_domain_jwhois.sh

Rating
2 votes
Favoured:
0
Last Release Date
2014-01-17
Compatible With
  • Nagios 1.x
  • Nagios 2.x
  • Nagios 3.x
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Bash script plugin to alert on expiring domain names. Uses jwhois (developed on CentOS). Warning at 30 days, critical at 14.
##### Created by Joe McShinsky #####

#! /bin/bash

if [ $# -ne 1 ]
then
echo "Usage: $0 [domain name]"
exit 1
fi

getDate=`jwhois $1 | grep Expir`

expireDate=`echo "$getDate" | cut -d":" -f2-22 | cut -c1-11`

currentDate=`date +%s`

expireDate=`date +%s --date="$expireDate"`

### Difference between expiration and right now
timeDiffSec=`expr $expireDate - $currentDate`

### Convert to days (86400 seconds in a day)
timeDiffDays=`expr $timeDiffSec / 86400`

if [ $timeDiffDays -lt 15 ]
then
echo "CRITICAL: $timeDiffDays Left Until Domain Expiration"
exit 2
fi

if [ $timeDiffDays -lt 31 ]
then
echo "WARNING: $timeDiffDays Left Until Domain Expiration"
exit 1
fi

if [ $timeDiffDays -gt 30 ]
then
echo "OK: $timeDiffDays Left Until Domain Expiration"
exit 0
fi

echo "Oops! Check the script for any required updates"
exit 1
Reviews (2)
Adding a few lines to better parse the expiration date.. it's a bit crude, but it's works

######
#! /bin/bash

if [ $# -ne 1 ]
then
echo "Usage: $0 [domain name]"
exit 1
fi

getDate=`jwhois $1 | grep Expir`

FIRST_WORD=`echo $getDate | cut -d " " -f1`

case $FIRST_WORD in
Registrar) expireDate=`echo $getDate | cut -d " " -f5`;;
Registry) expireDate=`echo $getDate | cut -d " " -f4 | cut -d "T" -f1`;;
Domain) expireDate_1=`echo $getDate | tr -s \ | cut -d ":" -f2-22 | sed -e 's/\S*\(:\)\S*//g' -e 's/ GMT //g'`
expireDate=`date -d "$expireDate_1" +%Y-%m-%d`;;
esac

currentDate=`date +%s`

expireDate=`date +%s --date="$expireDate"`

### Difference between expiration and right now
timeDiffSec=`expr $expireDate - $currentDate`

### Convert to days (86400 seconds in a day)
timeDiffDays=`expr $timeDiffSec / 86400`

if [ $timeDiffDays -lt 15 ]
then
echo "CRITICAL: $timeDiffDays Left Until Domain Expiration"
exit 2
fi

if [ $timeDiffDays -lt 31 ]
then
echo "WARNING: $timeDiffDays Left Until Domain Expiration"
exit 1
fi

if [ $timeDiffDays -gt 30 ]
then
echo "OK: $timeDiffDays Left Until Domain Expiration"
exit 0
fi
The first domain expiration plugin I managed to work somehow. But still doesn't work for all domains. It seems to be not plugin, but jWhois problem.

$ ./check_jwh.sh microsoft.com
CRITICAL: 0 Left Until Domain Expiration
$

$ jwhois microsoft.com
[Cached]
[whois.markmonitor.com]
$