Permissions where?

nagios -v …/nagios.cfg is O.K.

but I get this message on every page:

It appears as though you do not have permission to view information for any of the hosts you requested…
If you believe this is an error, check the HTTP server authentication requirements for accessing this CGI
and check the authorization options in your CGI configuration file.

Does anyone know what permission need to change where and what --like maybe apache permissions… :?:

Check this
nagios.org/faqs/viewfaq.php? … desc=false