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I had a working setup with PNP4Nagios and Nagios. Everything was great.

Friday, I installed NagiosQL.

Since then, PNP4Nagios's web UI doesn't work anymore!

I get this error when trying to access it:

The requested URL /pnp4nagios/index.php/graph was not found on this server.

Mod_rewrite is enabled, but I guess the above error indicates that it's not working correctly??

The links generated by Nagios (that used to work, before Friday..) look like this:


Here is the relevant output of Apache's error.log:

[Fri Mar 02 15:06:43 2012] [error] [client] File does not exist: /usr/local/pnp4nagios/share/index.php/graph

Here is my /etc/apache2/conf.d/pnp4nagios.conf:

Alias /pnp4nagios "/usr/local/pnp4nagios/share"

<Directory "/usr/local/pnp4nagios/share">
    AllowOverride None
    Order allow,deny
    Allow from all
    # Use the same value as defined in nagios.conf
    #AuthName "Nagios Access"
    #AuthType Basic
    #AuthUserFile /usr/local/nagios/etc/htpasswd.users
    Require valid-user
    <IfModule mod_rewrite.c>
            # Turn on URL rewriting
            RewriteEngine On
            Options FollowSymLinks
            # Installation directory
            RewriteBase /pnp4nagios/
            # Protect application and system files from being viewed
            RewriteRule ^(application|modules|system) - [F,L]
            # Allow any files or directories that exist to be displayed directly
            RewriteCond %{REQUEST_FILENAME} !-f
            RewriteCond %{REQUEST_FILENAME} !-d
            # Rewrite all other URLs to index.php/URL
            RewriteRule .* index.php/$0 [PT,L]

And my /etc/apache2/sites-available/default:

<VirtualHost *:80>
    ServerAdmin webmaster@localhost

    DocumentRoot /usr/local/nagios/share/vshell
    <Directory />
            Options Indexes FollowSymLinks
            AllowOverride None
            Allow from all
            AuthType Kerberos
            AuthName "Nagios Authentification"
            KrbMethodNegotiate On
            KrbMethodK5Passwd On
            KrbAuthRealms 1234.COM
            Krb5KeyTab /etc/1234.keytab
            require user xxx@1234.COM
            require user yyy@1234.COM
            require user aaa@1234.COM
            require user bbb@1234.COM
    <Directory /var/www/>
            Options Indexes FollowSymLinks MultiViews
            AllowOverride None
            Order allow,deny
            allow from all
    ScriptAlias /cgi-bin/ /usr/local/nagios/sbin/
    <Directory "/usr/lib/cgi-bin">
            AllowOverride None
            Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
            Order allow,deny
            Allow from all

    ErrorLog ${APACHE_LOG_DIR}/error.log

    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel warn

    CustomLog ${APACHE_LOG_DIR}/access.log combined

Alias /doc/ "/usr/share/doc/"
<Directory "/usr/share/doc/">
    Options Indexes MultiViews FollowSymLinks
    AllowOverride None
    Order deny,allow
    Deny from all
    Allow from ::1/128


I'm really lost here.

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up vote 0 down vote accepted


It turns out that the answer was really simple :S After all these days of torture!!

I found the answer here.

Here it is:

apt-get purge libapache2-mod-php5 php5 && apt-get install libapache2-mod-php5 php5
service apache2 restart

That simple!

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