this is the answer of assistance:
DreamHost uses suexec to run cgi scripts. suexec allows Apache to run
programs using a user id other than that of the Apache process. Suexec
significantly reduces many of the security risks associated with
CGIs. Suexec is enabled for DreamHost users, and cannot be disabled.
Because of the way suexec handles security, the directory in which your
CGI scripts live must not be writable by anyone but the CGI user (chmod
755). The scripts themselves must not be writable by anyone but the CGI
user, either. If they are writable, you will receive a 500 error from
What i must do now ??