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NRPE CHECK_NRPE Error Could Not Complete SSL HandshakeNRPE CHECK_NRPE Error Receiving Data From DaemonNRPE CHECK_NRPE Received 0 Bytes From Daemon. Check The Remote Server Logs For Error MessagesNRPE CHECK_NRPE Socket Timeout After n SecondsNRPE Command ’[Your Plugin]’ Not DefinedNRPE Connection Refused By HostNRPE Connection Refused Or Timed OutNRPE ERROR Missing Argument ExceptionNRPE Error While Loading Shared Libraries libssl.soNRPE General Troubleshooting TipsNRPE Linux Cached Memory Not Added to Free MemoryNRPE NRPE Unable To Read OutputNRPE No Output Returned From PluginNRPE Remote does not support Version 3 PacketsNRPE Return Code Of 126 Is Out Of Bounds Plugin May Not Be ExecutableNRPE Return Code Of 127 Is Out Of Bounds Plugin May Be MissingNRPE UNKNOWN No Handler For That CommandNRPE Warning This Plugin Must Be Either Run As Root Or SetuidOpenSSL causes issue with check_nrpe plugin with NSClient++

NRPE - Connection Refused By Host

Problem Description

This KB article addresses the following NRPE error:

Connection Refused By Host

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

This error usually relates to port/firewall issues or improperly configured allowed_hosts directives.  Please refer to the following KB articles for the relevant troubleshooting steps:

NRPE - CHECK_NRPE: Error - Could Not Complete SSL Handshake

NRPE - CHECK_NRPE: Socket Timeout After n Seconds

Final Thoughts

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

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

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