Enable this if the domain owner account should have the ability to edit the Apache configuration for his domain. The privileges granted by this option can be intimidating for inexperienced users, but experienced users will find the flexibility very powerful. It is also possible, through modifications to the default access control configuration, to allow direct access to the virtual domains section of the configuration file for Apache. Protections are in place to prevent malicious behavior, but it is unlikely to be perfect. By default the privileges granted are generally safe for use in a shared hosting environment.