Sporadic SSL handshake errors

[and1100]

Hi,

I've noticed that a large majority of our servers are randomly reporting "nrpe[3301]: Error: Could not complete SSL handshake. 5 " in the client logs which causes checks to enter a CRITICAL state with the following error:

Additional Info:

CHECK_NRPE: Socket timeout after 10 seconds.

I've been unable to track down the cause of this issue since it's so widespread. Is there a way to perhaps disable SSL handshaking on our Nagios server? If anyone has experienced this issue and has any ideas, please share.

Thank you!

[rkennedy]

You should be able to use the -n flag.

[root@suse11 libexec]# ./check_nrpe
Incorrect command line arguments supplied

NRPE Plugin for Nagios
Copyright (c) 1999-2008 Ethan Galstad ([email protected])
Version: 2.15
Last Modified: 09-06-2013
License: GPL v2 with exemptions (-l for more info)
SSL/TLS Available: Anonymous DH Mode, OpenSSL 0.9.6 or higher required

Usage: check_nrpe -H <host> [ -b <bindaddr> ] [-4] [-6] [-n] [-u] [-p <port>] [-t <timeout>] [-c <command>] [-a <arglist...>]

Options:
-n = Do no use SSL