Old 05-21-2012, 02:01 PM
MikeDVB MikeDVB is offline
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Join Date: Dec 2007
Location: Indianapolis, Indiana USA
Posts: 14,914
Disclaimer: I accept no responsibility from anything that happens from you doing or not doing anything I suggest or do not suggest. I.e. do this at your own risk.

Add this to the end of your configuration.php in WHMCS right before the last ?>:
PHP Code:
 if(isset($_GET['licensedebug']))
 {
 unset($_GET['licensedebug']);
 exit('Sorry');
 } 
This will cause the ?licensedebug to fail (as well as the version with a few arguments that will invalidate your local license and force a remote check). It's not the be-all and end-all to security by any means, but will help protect you (at least a little bit).

Edit: Apparently some people couldn't figure this out so here is the "summary" of this fix: "It keeps people from remotely disabling your WHMCS license while the WHMCS Licensing servers are offline." This is a **fix**, it won't invalidate your license.

Last edited by MikeDVB; 05-21-2012 at 02:06 PM.