the solutions :
The following mod_rewrite config maps the user “nagiosadmin” to NagVis:
The following line is the really important step,
it tells the webserver that the user “nagiosadmin” has
successfully authenticated and is sending the request,
regardless who is sending it really.
RewriteRule /nagvis/ - [E=REMOTE_USER:nagiosadmin]"
[size=150]===> Question: in which file, you insert these lines???[/size]
A second way to “disable” the authentication is setting the variable REMOTE_USER via .htaccess file. Place a file called .htaccess with the following content in the NagVis root directory:
SetEnv REMOTE_USER nagiosusername"
[size=150]===> I have inserted this line in the .htaccess file in Nagvis root directory. Nagvis still need an authentification.[/size]