Untitled

#!/bin/bash

 

username=your_opendns_username

passwd=your_opendns_password

log_dir=/home/some_user_dir/.opendns

 

if [ ! -d $log_dir ]; then

  mkdir $log_dir

fi

 

if [ -e $log_dir/log ]; then

  mv $log_dir/log $log_dir/log.1

fi

 

date >> $log_dir/log

 

oldip=`/usr/bin/curl http://nst.sourceforge.net/nst/tools/ip.php -silent -i`

 

while [ 1 ]

do

 

  newip=`/usr/bin/curl http://nst.sourceforge.net/nst/tools/ip.php -silent -i`

 

  if [ $oldip != $newip ]

  then

    /usr/bin/curl -i -m 60 -k -u $username:$passwd 'https://updates.opendns.com/account/ddns.php?' -silent >> $log_dir/log

    echo -e "\n" >> $log_dir/log

    $oldip = $newip

  fi

 

  sleep 60

 

done