Scripts/dynpowerup: Difference between revisions
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This script will update the A records for zones you host on your local PowerDNS nameserver to your (external) dynamic IP. | |||
I'm running this script after every reconnect of my VDSL link through ppp's ip-up scripts by putting it here: | |||
<pre> | |||
/etc/ppp/ip-up.d/dynpowerup | |||
</pre> | |||
<pre> | |||
#!/bin/bash | #!/bin/bash | ||
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echo "IP updates done" | echo "IP updates done" | ||
fi | fi | ||
</pre> | |||
Revision as of 01:46, 9 February 2011
This script will update the A records for zones you host on your local PowerDNS nameserver to your (external) dynamic IP.
I'm running this script after every reconnect of my VDSL link through ppp's ip-up scripts by putting it here:
/etc/ppp/ip-up.d/dynpowerup
#!/bin/bash
RECORDS=("example.com" "ns1.example.com" "ns2.example.com" "example.org" "example.net")
DBUSER="your-powerdns-user"
DBPASS="your-powerdns-password"
DBNAME="your-powerdns-database"
IP=`lynx -dump http://checkip.dyndns.org | awk '{print $4}'`
if [ -e "/tmp/nsup.IP" ]; then
read OLD_IP < "/tmp/nsup.IP"
else
OLD_IP="0.0.0.0"
fi
if [ "$IP" != "$OLD_IP" ]; then
echo "IP address changed from $OLD_IP to $IP"
for RECORD in ${RECORDS[@]}; do
echo "updating record: $RECORD"
COMMAND="$COMMAND UPDATE ${DBNAME}.records SET content = \"$IP\" WHERE name = \"$RECORD\";"
done
mysql -u${DBUSER} -p${DBPASS} ${DBNAME} -e "$COMMAND"
echo "$IP" > /tmp/nsup.IP
echo "IP updates done"
fi