Authentication problem

[eloyd]

ifconfig show the private IP, i enter the private IP or public?

You should use whatever IP address that you will be using to connect to the web server. Look at http://httpd.apache.org/docs/2.2/mod/co ... irtualhost and specifically this part:

With the NameVirtualHost directive you specify the IP address on which the server will receive requests for the name-based virtual hosts. This will usually be the address to which your name-based virtual host names resolve. In cases where a firewall or other proxy receives the requests and forwards them on a different IP address to the server, you must specify the IP address of the physical interface on the machine which will be servicing the requests. If you have multiple name-based hosts on multiple addresses, repeat the directive for each address.

I think you may be misconfigured as a virtual host server. Beyond that, I'd recommend starting over with a new AWS EC2 instance and a new install of Nagios.

[hellb0y77]

Nothing....same problem, i will consider to re-create the istance
Thank you all for your time and patience

Stefano

[tmcdonald]

Let us know when you have the new server and we'll see if you run into the same issues.