If you have a drupal site on a cPanel account, you can set up cron in cPanel. Here is how:
(1) Your site is, say, example.com
(2) Log into cPanel (example.com/cpanel)
(3) Go to cron jobs > standard
(4) Enter the following code in your cron:
/usr/bin/lynx -source http://example.com/cron.php(replace example.com with your actual website)
I normally choose every hour, every day, every weekday, every month, and choose the minute corresponding to the current time. For example, if it is 8:23 a.m., I choose 23. This is because I have lots of sites on my server, and I don't want all crons to be called at the same time.
Power users can bypass the cPanel user interface and modify the cron directly with the following command in shell, substituting your cPanel username for "username":
$ crontab -e -u usernameIn the ensuing window, type in the following:
12 * * * * /usr/bin/lynx -source http://example.com/cron.php
31 * * * * /usr/bin/lynx -source http://example2.com/cron.php
59 * * * * /usr/bin/lynx -source http://example3.com/cron.php