It appears as though you do not have permission to view information ...

nagios里出现监控页面出现

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.

解决方法为：vi /usr/local/nagios/etc/cgi.cfg

use_authentication=1 #把1修改为0,保存 

root@nagios#/etc/init.d/nagios restart