Once configured NSClient++ in windows server if you have received an error, could not fetch information from the server.

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Assume that, If you have installed MRTG for monitoring network device on Linux system, also you would like to monitoring MRTG on Nagios.

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You may get encounter error “CHECK_NRPE: Error - Could not complete SSL handshake” from Nagios monitoring you need to check SSL or nrpe file configuration

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You may get CRITICAL error "Connection refused by host" on Nagios monitoring tool after installed and configured Nagios in client system.

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