error while loading shared libraries: libmcrypt.so.4: cannot open shared object file: No such file or directory when running Splunk for Nagios

[cdurland]

Hey Luke,

Our installation is trying to send splunk alerts to nagios(basically just using nagios as a front end). The issue I'm having is that on our splunk server(64bit centos 6), we keep seeing this issue:

$ sudo ./send_nsca localhost -c /home/testuser/nsca.cfg < test.txt
./send_nsca: error while loading shared libraries: libmcrypt.so.4: cannot open shared object file: No such file or directory

I've installed the most recent mcrypt(and libmcrypt) package, and ive even tried using older versions. I'm still getting this error. Have you see this before?

[cdurland · Accepted solution]

Just to update: You need to use the 32-bit version of libmcrypt for this to work. Pointing it to the 64bit version throws an error, but the 32-bit works flawlessly.