Home » Categories » Products » NRPE » Troubleshooting » Common Problems

NRPE - Return Code Of 126 Is Out Of Bounds - Plugin May Not Be Executable

Problem Description

This KB article addresses the following NRPE error:

Return Code Of 126 Is Out Of Bounds - Plugin May Not Be Executable

 

Assumed Knowledge

The following KB article contains an explanation of how NRPE works and may need to be referenced to completely understand the problem and solution that is provided here:

NRPE - Agent and Plugin Explained

 

Troubleshooting The Error

Many times when a plugin is downloaded from the Nagios Exchange and copied to the remote host, it will not have executable permissions.  You can verify this by getting a long-listing of the libexec plugin directory. For this example will will be using the command check_foo.sh.  On the remote host execute the following command:

ls -l /usr/local/nagios/libexec


You should see a listing similar to:

-rwxr-xr-x. 1 root   root     4173 Nov 21 01:39 check_bl
-rw-r--r--. 1 root   root     2289 Nov 21 01:39 check_foo.sh


The far left column of the listing are the permissions for each file. If you noticed, check_foo.sh is missing an "x" in a few places.  These are executable permissions and can easily be added to the file using the following command:

chmod +x /usr/local/nagios/libexec/check_foo.sh


Remember that check_foo.sh is just an example, you will change /usr/local/nagios/libexec/check_foo.sh to the actual name and path to your plugin that is missing executable permissions. 

 

 

Final Thoughts

For any support related questions please visit the Nagios Support Forums at:

http://support.nagios.com/forum/

0 (0)
Article Rating (No Votes)
Rate this article
  • Icon PDFExport to PDF
  • Icon MS-WordExport to MS Word
Attachments Attachments
There are no attachments for this article.
Related Articles RSS Feed
NRPE - Linux Cached Memory Not Added to Free Memory
Viewed 799 times since Wed, Jan 27, 2016
NRPE - Packet Size Explained
Viewed 1335 times since Thu, Jun 30, 2016
NRPE - UNKNOWN: No Handler For That Command
Viewed 1721 times since Mon, Jul 17, 2017
NRPE - Remote does not support Version 3 Packets
Viewed 1989 times since Mon, Nov 27, 2017
NRPE - No Output Returned From Plugin
Viewed 2031 times since Mon, Jul 17, 2017
NRPE - NRPE: Unable To Read Output
Viewed 6445 times since Mon, Jul 17, 2017
NRPE - ERROR: Missing Argument Exception
Viewed 411 times since Mon, Jul 17, 2017
Disabling Port 113 IDENT Requests
Viewed 462 times since Tue, Mar 12, 2019
NRPE - Connection Refused By Host
Viewed 2223 times since Mon, Jul 17, 2017
NRPE - Connection Refused Or Timed Out
Viewed 943 times since Mon, Jul 17, 2017