Error: Could not open command file 'nagios.cmd' for update!

[Aldo Foot]

On Fri, Dec 12, 2008 at 5:02 PM, Aldo Foot <lunixer at gmail.com> wrote:
> I'm running CentOS 5 and Nagios 3.0.6.
>
> When I click on "Re-schedule the next check of this service" I get an 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 read the FAQ here:
> http://www.nagios.org/faqs/viewfaq.php?faq_id=58&expand=false&showdesc=false
>
> and followed the instructions here:
> http://nagios.sourceforge.net/docs/2_0/commandfile.html
>
> and have these file permissions:
>
> # ls -ld /usr/local/nagios/var/rw
> drwxrwsr-x 2 nagios nagcmd 4096 Dec 12 16:49 /usr/local/nagios/var/rw
>
> # ls -l /usr/local/nagios/var/rw
> prw-rw---- 1 nagios nagcmd 0 Dec 12 16:15 nagios.cmd
>
> Note that if I disable the system firewall there is no error.
> I won't get into much detail on the firewall side (building a local
> policy file), because
> I'd like to know whether there is a simpler, better solution to this.
>
> thanks in advanced.
> ~af

To add more info:

I have the account and group set as shown here.

# grep nag /etc/passwd
nagios:x:501:501::/home/nagios:/bin/bash

# grep nag /etc/group
nagios:x:501:
nagcmd:x:502:nagios,apache

pretty much that's how it's outlined in the documentation.
~af

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