#3 Abuse with wrong permissions

[Roman Kurakin]

I've set up ipcheck as a FreeBSD port and run it as
root. After I was sure that all works fine I've added
it to cron to check every 5 minutes that all is ok but
with nonprivileged permissions. I've used an option to
set a working dir for script but it has root write
permissions only and ipcheck.dat file with correct
permissions. This caused abuse to dyndns service.
I guess the correct behaviour just do nothing in case
the script can't do some part of its work.