External Command File Error

[Kaplan, Andrew H.]

Hi there -- 

Thanks for your reply. The answers to your questions are the following:

Does /usr/local/nagios/var/rw exist?
Yes, it does. 

Does /usr/local/nagios/var/rw/nagios.cmd exist after starting nagios?
Yes, it does. The external commands option is set to "1" in the nagios.cfg file.

Is the ownership of /usr/local/nagios/var/rw nagios:nagios? 
Yes, the ownership is set to nagios:nagios. 

Is the ownership of /usr/local/nagios/var/rw nagios:nagios? If so,  
review the Fedora Quickstart Guide, specifically Step 1, Create  
Account Information; you've missed setting the ownership of the files  
and apache group membership correctly. Apache will need to be  
restarted after making those changes.

I went ahead and ran the usermod command for Apache that was mentioned in
step one of the Fedora Quickstart guide. Once that was done, I restarted Apache,
and that appears to have solved the problem.

Thanks for the help.



-----Original Message-----
From: Marc Powell [mailto:marc at ena.com]
Sent: Wed 7/8/2009 6:03 PM
To: Nagios Users Mail-list
Subject: Re: [Nagios-users] External Command File  Error
 

On Jul 8, 2009, at 3:56 PM, Kaplan, Andrew H. wrote:

> Hi there -
>
> I completed the installation of the Nagios 3.1.2 application onto  
> our CentOS 5.3 server. Everything appears
> to be working fine with one noticeable exception: If I go to the  
> host information page of any host, and select
> Schedule a check of all services on the host, and subsequently click  
> on commit, I get the following error:
>
> Error: Could not open command file '/usr/local/nagios/var/rw/ 
> nagios.cmd' for update!
>
> The permissions on the external command file and/or directory may be  
> incorrect.
> Read the FAQs on how to setup proper permissions.
>
> An error occurred while attempting to commit your command for  
> processing.
>
> I went through and verified the following:
>
> 1. The nagios user account has the bash shell.
> 2. The permissions on the nagios directory, and its subdirectories  
> are as follows:
>         user:group ownership    = nagios:nagios
>         permissions             = rwxrwxrwx
>
> What did I miss here, and what can I do to correct it? Thanks.
>

Does /usr/local/nagios/var/rw exist? If not run 'make install- 
commandmode' if you installed from source code.
Does /usr/local/nagios/var/rw/nagios.cmd exist after starting nagios?  
If not, verify that you've set check_external_commands and related  
options in nagios.cfg.
Is the ownership of /usr/local/nagios/var/rw nagios:nagios? If so,  
review the Fedora Quickstart Guide, specifically Step 1, Create  
Account Information; you've missed setting the ownership of the files  
and apache group membership correctly. Apache will need to be  
restarted after making those changes.
Do you have SELinux enabled and in enforcing mode? If so, is your  
policy preventing access to that directory and named pipe?

--
Marc


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