php requirements

[Skeptical]

I want to lock down my system by disabling many php functions, such as:

 

disable_functions = dl,passthru,proc_open,proc_close,shell_exec,system

 

Will this cause problems with WHMCS? I'm thinking maybe some of the cron jobs?

[sgrayban]

dl can cause stability problems so I wouldn't use that plus its been removed from php 5.3 or use

enable_dl = Off ;

 

Enabling safe mode would be the way to go but I think that does break WHMCS with some of the server addons.

 

Disabling system can really cause a problem if you disable it especially for uploading attachments.

 

If you want php security instead install suhosin http://www.hardened-php.net/suhosin/ which can do a much better job at isolating hacking.