Unable to login to Nagios 4.0.2 after Ubuntu upgrade 14.04

[stewlg]

I recently put a server through an unexpectedly traumatic Ubuntu apt-get dist-upgrade to 14.04, and one of the things affected was Apache and Nagios.

I've finally gotten it so I can see the Nagios screens again, but it's still not working correctly yet.

- I'm no longer prompted to log in, ever (I want to always log in as nagiosadmin)
- I see "Logged in as ?" under current network status
- When I try to do anything I get error messages such as "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."
- I get no errors in Apache's log or Nagios's log

Looking at others with similar problems, I would assume I need to get Apache to oblige me to login. I've tried to cause this to happen a variety of ways, but I so far have not gotten it to work. For example here's my httpd.conf:

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ScriptAlias /nagios/cgi-bin /usr/lib/cgi-bin/nagios3
<Directory "/usr/lib/cgi-bin/nagios3">
    AllowOverride AuthConfig
    Options ExecCGI
    Require all granted
    AuthName "Nagios Access"
    AuthType Basic
    AuthUserFile /usr/local/nagios/etc/htpasswd.users
    require valid-user
</Directory>

Alias /nagios /usr/local/nagios/share
<Directory "/usr/local/nagios/share">
    Options None
    AllowOverride AuthConfig
    Require all granted
    AuthName "Nagios Access"
    AuthType Basic
    AuthUserFile /usr/local/nagios/etc/htpasswd.users
    require valid-user
</Directory>

(I've been running Nagios since 3, don't be thrown off by the directory name; I promise to fix it if I can get this working again.)

Thank you!

[lmiltchev]

Can you run the following command and show us the output?

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grep nag /etc/group

[stewlg]

Sure:

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root@griffin:/var/log/apache2# grep nag /etc/group
nagios:x:1003:
nagcmd:x:1004:nagios,www-data

[abrist]

The user "nagios" should be in the groups "nagios" and "www-data".
The user "www-data" should be in the groups "nagios" and "www-data".

[stewlg]

Ok, this is how it looks now:

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root@griffin:~# grep nag /etc/group
www-data:x:33:nagios,www-data
nagios:x:1003:nagios,www-data
nagcmd:x:1004:nagios,www-data

My problem remains - no change.

[Box293]

Is SELinux enabled?

getenforce

Also, run these commands:

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a2enmod rewrite
a2enmod cgi
service apache2 restart

Does this help?

[stewlg]

Apparently I am not running selinux. I didn't need selinux before, hopefully I don't need it now.

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root@griffin:~# getenforce
Disabled
root@griffin:~# 

mod rewrite and cgi were already enabled:

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root@griffin:~# a2enmod rewrite
Module rewrite already enabled
root@griffin:~# a2enmod cgi
Module cgi already enabled
root@griffin:~# service apache2 restart
 * Restarting web server apache2
   ...done.

Still not working.

[Box293]

Can you please attach your apache2.conf file, it's probably in /etc/apache2/

[stewlg]

Attached find my current apache2.conf.

I appreciate all the suggestions so far, and look forward to getting this working again.

[Box293]

Thanks for that.

Can you please do the following:

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ls -al /etc/apache2/conf-enabled/
ls -al /etc/apache2/sites-enabled/

I want to see what files are in the folders to compare them with the apache2.conf file.