You get any of these errors.... Code: Invalid command 'php_admin_flag', perhaps mis-spelled or defined by a module not included in the server configuration Invalid command 'SuexecUserGroup', perhaps misspelled or defined by a module not included in the server configuration Mandriva likes to make modules of _everything_ for apache and I was getting the same errors and ISPConfig was not loading in new websites because httpd -t was throwing a valid but invalid error. The problem begins when you install a apache2 module and it installs it into 'modules.d/70_mod_php4.conf' or something like that. httpd -t doesn't load that in -- know why ? Cause in Mandriva atleast 1 issue is going on. 1) httpd -t doesn't check syntax with the included 'Include modules.d/*.conf' still So what I had to do was manually add the following into httpd.conf .... LoadModule php4_module extramodules/mod_php4.so LoadModule suexec_module extramodules/mod_suexec.so These two modules _MUST_ be loaded into the main httpd.conf for 'httpd -t' to work. After I did that the error 'Invalid command 'php_admin_flag' went bye bye and all was good. The suexec_module will also throw a error if its loaded the same way the php4 module is so I had to add that as well. Maybe 'httpd -t' just isn't a good idea until the apache people fix this bug. I already reported it.