Could not stat() command file '/usr/local/nagios/var/

Hello,
I am having the same error as in this post, but following the steps people have posted I am still not able to resolve the error and enable notifications for a service or make notes.
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.
Here is some of my system information, please advise what I can do next:
Linux i-2743-8087-VM 2.6.18-348.el5 #1 SMP Tue Jan 8 17:53:53 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@i-2743-8087-VM tmp]# getenforce
Enforcing
[root@i-2743-8087-VM tmp]# setenforce 0
[root@i-2743-8087-VM tmp]# service nagios restart
Running configuration check...Stopping nagios: .done.
Starting nagios: done.
[root@i-2743-8087-VM tmp]# ps -auxww | grep nagios
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
nagios 4053 0.0 0.0 16112 1384 ? Ss 09:37 0:00 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
nagios 4054 0.0 0.0 9628 784 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4055 0.0 0.0 9628 784 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4056 0.0 0.0 9628 784 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4057 0.0 0.0 9112 700 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4059 0.0 0.0 15468 668 ? S 09:37 0:00 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
root 4073 0.0 0.0 61216 768 pts/1 S+ 09:39 0:00 grep nagios
[root@i-2743-8087-VM tmp]# ps -auxww | grep httpd
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
apache 3570 0.0 0.2 236108 9596 ? S 09:08 0:00 /usr/sbin/httpd
apache 3686 0.0 0.2 236108 9600 ? S 09:19 0:00 /usr/sbin/httpd
root 4077 0.0 0.0 61216 764 pts/1 S+ 09:39 0:00 grep httpd
root 9428 0.0 0.3 235916 15668 ? Ss May28 0:00 /usr/sbin/httpd
apache 11301 0.0 0.2 236244 10396 ? S Jun08 0:00 /usr/sbin/httpd
apache 27779 0.0 0.3 237020 12576 ? S Jun08 0:00 /usr/sbin/httpd
apache 27781 0.0 0.2 236908 11888 ? S Jun08 0:00 /usr/sbin/httpd
apache 27782 0.0 0.2 236108 9656 ? S Jun08 0:00 /usr/sbin/httpd
apache 27783 0.0 0.2 236392 11496 ? S Jun08 0:00 /usr/sbin/httpd
apache 27784 0.0 0.2 236108 9648 ? S Jun08 0:00 /usr/sbin/httpd
apache 27786 0.0 0.2 236256 10408 ? S Jun08 0:00 /usr/sbin/httpd
apache 27787 0.0 0.2 236248 10404 ? S Jun08 0:00 /usr/sbin/httpd
apache 27788 0.0 0.2 237000 12028 ? S Jun08 0:00 /usr/sbin/httpd
Thank you in advance!
I am having the same error as in this post, but following the steps people have posted I am still not able to resolve the error and enable notifications for a service or make notes.
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.
Here is some of my system information, please advise what I can do next:
Linux i-2743-8087-VM 2.6.18-348.el5 #1 SMP Tue Jan 8 17:53:53 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@i-2743-8087-VM tmp]# getenforce
Enforcing
[root@i-2743-8087-VM tmp]# setenforce 0
[root@i-2743-8087-VM tmp]# service nagios restart
Running configuration check...Stopping nagios: .done.
Starting nagios: done.
[root@i-2743-8087-VM tmp]# ps -auxww | grep nagios
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
nagios 4053 0.0 0.0 16112 1384 ? Ss 09:37 0:00 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
nagios 4054 0.0 0.0 9628 784 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4055 0.0 0.0 9628 784 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4056 0.0 0.0 9628 784 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4057 0.0 0.0 9112 700 ? S 09:37 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4059 0.0 0.0 15468 668 ? S 09:37 0:00 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
root 4073 0.0 0.0 61216 768 pts/1 S+ 09:39 0:00 grep nagios
[root@i-2743-8087-VM tmp]# ps -auxww | grep httpd
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
apache 3570 0.0 0.2 236108 9596 ? S 09:08 0:00 /usr/sbin/httpd
apache 3686 0.0 0.2 236108 9600 ? S 09:19 0:00 /usr/sbin/httpd
root 4077 0.0 0.0 61216 764 pts/1 S+ 09:39 0:00 grep httpd
root 9428 0.0 0.3 235916 15668 ? Ss May28 0:00 /usr/sbin/httpd
apache 11301 0.0 0.2 236244 10396 ? S Jun08 0:00 /usr/sbin/httpd
apache 27779 0.0 0.3 237020 12576 ? S Jun08 0:00 /usr/sbin/httpd
apache 27781 0.0 0.2 236908 11888 ? S Jun08 0:00 /usr/sbin/httpd
apache 27782 0.0 0.2 236108 9656 ? S Jun08 0:00 /usr/sbin/httpd
apache 27783 0.0 0.2 236392 11496 ? S Jun08 0:00 /usr/sbin/httpd
apache 27784 0.0 0.2 236108 9648 ? S Jun08 0:00 /usr/sbin/httpd
apache 27786 0.0 0.2 236256 10408 ? S Jun08 0:00 /usr/sbin/httpd
apache 27787 0.0 0.2 236248 10404 ? S Jun08 0:00 /usr/sbin/httpd
apache 27788 0.0 0.2 237000 12028 ? S Jun08 0:00 /usr/sbin/httpd
Thank you in advance!