curl 'http://ddns.dnszi.com/set.html?user=AAA&auth=PPP&domain=gimslab.com&record=wiki'

~/bin$ cat updateddns-h.gimslab.com 
curl --user user_id:key 'http://dyna.dnsever.com/update.php?host\[h.gimslab.com\]'
#curl --user user_id:key 'http://dyna.dnsever.com/update.php?host\[h.gimslab.com\]=offline'