On Tue, 26 Jul 2011, wes wrote:
> Does anyone know of a tool that can monitor DNS replies and notify on
> success/failure?
>
> Basically, I want to find out the moment a DNS server (that I do not
> control) has updated.
Assuming the DNS server in question has an IPv4 address of 12.13.14.15
and the updated address of the host in question is 100.101.102.103,
then
#!/bin/sh
DNSSRV=12.13.14.15
GOODIP=100.101.102.103
YOURHOST=your.hostname.com
MSG="Your DNS Record is Up to Date"
while true; do
if test $(dig +short @$DNSSRV $YOURHOST) = $GOODIP; then
echo "$MSG" | /bin/mail -s "$MSG" cli...@e-mail.com
break
fi
sleep 120
done
--
Paul "I love the smell of /bin/sh in the morning" Heinlein
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