Monitor Domain Expiration with Xymon

Monitor Domain Expiration with Xymon

Usage: To check domain expiration and notify owner.

Create a file name dnsreg in /home/xymon/server/ext/dnsreg

#!/bin/sh

# Check DNS registrations in whois and warn when they are about to expire.
#
# NOTE: Requires a "whois" command that knows what servers to query.
# Requires GNU date.
# Should run only once a day.

NOW=`date "+%s"`
WARNTIME=`expr $NOW + 864000` # 10 days
ALARMTIME=`expr $NOW + 432000` # 5 day

/home/xymon/server/bin/xymongrep dnsreg | while read L
do
 set $L
 DOMAIN=$2

EXPIRESTRING="`whois $DOMAIN | egrep -i "Expires.*:|Expiration.*:|Renewal.*:|expir.*date:" | head -n 1 | cut -d: -f2- | sed -e's/^[ ]*//'`"
 EXPIRES=`date --date="$EXPIRESTRING" "+%s"`

if test $EXPIRES -le $ALARMTIME
 then
 COLOR=red
 elif test $EXPIRES -le $WARNTIME
 then
 COLOR=yellow
 else
 COLOR=green
 fi

$BB $BBDISP "status+90000 $DOMAIN.dnsreg $COLOR `date`

Domain $DOMAIN expires on $EXPIRESTRING
"
done

exit 0

Save it and quit.

Check /home/xymon/server/ext/dnsreg permission

permission should be 
-rwxrwxr-x 1 xymon apache 920 Apr 11 16:30 dnsreg

Add dnsreg task in /home/xymon/server/etc/tasks.cfg

[dnsreg]
ENVFILE /home/xymon/server/etc/xymonserver.cfg
NEEDS xymond
CMD $XYMONHOME/ext/dnsreg
LOGFILE $XYMONSERVERLOGS/dnsreg.log
INTERVAL 1d

Save and quit.

Add domain to check in /home/xymon/server/etc/hosts.cfg

page Domain Domain
title Domain EXP CHECK
group linuxscritpshub
0.0.0.0 linuxscriptshub.com # noconn dnsreg

Save and quit.

and restart your xymon server.

Now you can see your xymon page have dnsreg function.