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:

/usr/bin/openssl

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:

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