Cron
Cron settings for Drupal on opensourcehost.com
I have been trying to configure the Cron for my Drupal installations on OpenSourceHost.com. The tutorial on the OpenSourceHost.com site isn't up to the job really. Whatever configuration I tried gave me an error. So I emailed them and they sent me the correct parameters, which I'll share here with you.
Before doing this I highly recommend you rename your cron.php file, to something only you know. Leaving it as cron.php means anyone can run it.
To run the Drupal Cron enter: mywget -O - -q http://www.YourDomainName.com/YourCronFile.php
Cron settings for Drupal on hostgator.com
Here is a working format for Drupal Cron tasks on hostgator.com. After much hunting around, as one often has to do, I have found a working format. It's a shame the host's help files are not more forthcoming with this information. I had to trawl through lots of forum posts to find this.
POST http://www.yourdomain.com/cron.php /dev/null
I strongly recommend that you rename your cron.php file, or else anyone can run it.