check_swap command runs ok as root user, but as nagios user it gives incorrect info

[Rob Madole]

Sharing this with the list for posterity's sake...

Version info:
FreeBSD 4.10-RELEASE-P2
Nagios 2.0.r2
Nagios-plugins 1.4.2
NRPE 2.3

The plugin in question, check_swap, was returning the following  
information when ran through NRPE.

SWAP CRITICAL - 100% free (0 MB out of 0 MB) |swap=0MB;0;0;0;0

Running it from the local machine (as root) the plugin functioned  
completely normally.

What I've narrowed it down to is that on this box the user nagios  
doesn't have permission to view information about the swap space on  
the machine (specifically the /dev/mem and /dev/kmem device files).   
I adjusted the permission on these files, and all is working as it  
should now.

I have a feeling that some of the other plugins that use device files  
would suffer the same fate.  Perhaps a permissions check on the  
device files should be checked in the configure script for nagios  
plugins since the plugins themselves don't do any error-handling for  
this condition?  (Yeah I know...you should be able to assume the  
perms on the system are correct but still)

Hope this helps somebody in the future.

Rob Madole
Programming
JAMSpiritSites.com <http://jamspiritsites.com/>
The Original Cheerleading Website Designers™
ofc: (877) 239-9308
~~~~~~~~~~~NOTE~~~~~~~~~~~~
This Email is covered by the Electronic Communications Privacy Act,  
18 U.S.C. §§ 2510-2521 and is legally privileged. The information  
contained in this Email is intended only for use of the individual or  
entity named above. If the reader of this message is not the intended  
recipient, or the employee or agent responsible to deliver it to the  
intended recipient, you are hereby notified that any dissemination,  
distribution or copying of this communication is strictly prohibited.  
If you have received this communication in error, please immediately  
notify us by telephone (Toll Free - 877-239-9308), and destroy the  
original message. Thank You.




-------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems?  Stop!  Download the new AJAX search engine that makes
searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid3432&bid#0486&dat1642
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null