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@ksafa, I would highly recommend uninstalling the VMWare SDK 6.7 and installing SDK 6.5 instead. We had quite a few compatibility issues with the latest SDK.

Run the vmware-uninstall-vSphere-CLI.pl script to uninstall the SDK 6.7. On my server its located in:

/tmp/vmware-vsphere-cli-distrib/bin/vmware-uninstall-vSphere-CLI.pl

But you can search with find / -name vmware-uninstall-vSphere-CLI.pl.

https://assets.nagios.com/downloads/nag ... ios-XI.pdf
https://code.vmware.com/web/sdk/6.5/vsphere-perl

Seems to have made some improvement since at least I get check results now but i get the following error repeated several times before the output. This is only when i run as nagios user from command line, if i run as root i do not receive this message.

$ /usr/local/nagios/libexec/check_esx3.pl -f /usr/local/nagiosxi/etc/components/vmware/ESX1_auth.txt -H ESX1 -l MEM
*******************************************************************
Using the default of SSL_verify_mode of SSL_VERIFY_NONE for client
is deprecated! Please set SSL_verify_mode to SSL_VERIFY_PEER
possibly with SSL_ca_file|SSL_ca_path for verification.
If you really don't want to verify the certificate and keep the
connection open to Man-In-The-Middle attacks please set
SSL_verify_mode explicitly to SSL_VERIFY_NONE in your application.
*******************************************************************
at /usr/lib64/perl5/LWP/Protocol/http.pm line 31.
*******************************************************************
Using the default of SSL_verify_mode of SSL_VERIFY_NONE for client
is deprecated! Please set SSL_verify_mode to SSL_VERIFY_PEER
possibly with SSL_ca_file|SSL_ca_path for verification.
If you really don't want to verify the certificate and keep the
connection open to Man-In-The-Middle attacks please set
SSL_verify_mode explicitly to SSL_VERIFY_NONE in your application.
*******************************************************************
at /usr/lib64/perl5/LWP/Protocol/http.pm line 31.
*******************************************************************
Using the default of SSL_verify_mode of SSL_VERIFY_NONE for client
is deprecated! Please set SSL_verify_mode to SSL_VERIFY_PEER
possibly with SSL_ca_file|SSL_ca_path for verification.
If you really don't want to verify the certificate and keep the
connection open to Man-In-The-Middle attacks please set
SSL_verify_mode explicitly to SSL_VERIFY_NONE in your application.
*******************************************************************
at /usr/lib64/perl5/LWP/Protocol/http.pm line 31.
CHECK_ESX3.PL OK - mem usage=941375.27 MB (44.89%), overhead=0.00 MB, swapped=0.00 MB, memctl=0.00 MB | mem_usagemb=941375.27MB;; mem_usage=44.89%;; mem_overhead=0.00MB;; mem_swap=0.00MB;; mem_memctl=0.00MB;;

Try the following:

1. Open the check_esx3.pl plugin in a text editor, e.g. "vi", and add the following line on the top (after the comments): Save, and exit.

2. Test your check again. Are you still getting the "Using the default of SSL_verify_mode of SSL_VERIFY_NONE for client is deprecated" output?

Yes still getting the message "Using the default of SSL_verify_mode of SSL_VERIFY_NONE for client is deprecated" in output.

Some users reported that they fixed the issue by adding the following line to the check_esx3.pl plugin (on the top, below the comments): I am not able to recreate the issue in-house, so I cannot test the "fix". You can however give it a try.

If this doesn't work, open a new ticket via our Support Center:

https://support.nagios.com/tickets/

We may need to schedule a remote session to further troubleshoot this issue. Thank you!

That did the trick! Thank you for all the help!

Thank You,
Khaled

I am glad I could help!