Hi Thomas,
Thank you for your help, this issue is resolved.
But now I am facing another issue :
[Tue Aug 06 14:26:14 2013] [notice] SELinux policy enabled; httpd running as context unconfined_u:system_r:httpd_t:s0
[Tue Aug 06 14:26:14 2013] [notice] suEXEC mechanism enabled (wrapper...