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

NRPE - Error While Loading Shared Libraries: libssl.so

Problem Description

This KB article addresses the following NRPE error:

Error While Loading Shared Libraries: libssl.so.0.9.8:
Cannot Open Shared Object File: No Such File Or Directory


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

The likely cause is that you are missing the ssl libraries on the remote host. This is an easy fix, as all you need to do is install openssl from the host's distribution repositories. For example, in CentOS/RHEL, log onto your remote host and execute the following command:

yum install -y openssl


You can verify that it installed correctly with:

which openssl


The output should be similar to:



For instructions on installing the openssl libraries on other Operating Systems please refer to the following KB article:

NRPE - How To Install NRPE v3 From Source



Final Thoughts

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


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 - Remote does not support Version 3 Packets
Viewed 2761 times since Mon, Nov 27, 2017
NRPE - Linux Cached Memory Not Added to Free Memory
Viewed 1153 times since Wed, Jan 27, 2016
NRPE - Turn Off XINETD Logging On Success
Viewed 1628 times since Tue, Mar 7, 2017
NRPE - ERROR: Missing Argument Exception
Viewed 612 times since Mon, Jul 17, 2017
NRPE - Return Code Of 127 Is Out Of Bounds - Plugin May Be Missing
Viewed 2269 times since Fri, Jul 14, 2017
NRPE - Connection Refused By Host
Viewed 3170 times since Mon, Jul 17, 2017
CHECK_NRPE: Error - Could not connect to xxx.xxx.xxx.xxx: Connection reset by peer
Viewed 4738 times since Fri, Jul 14, 2017
NRPE - Command ’[Your Plugin]’ Not Defined
Viewed 1031 times since Mon, Jul 17, 2017
NRPE - v3 Compatibility With Previous Versions
Viewed 5000 times since Fri, Jun 24, 2016
NRPE - Connection Refused Or Timed Out
Viewed 1348 times since Mon, Jul 17, 2017