Nagios Support Forum

Posted: **Tue Feb 21, 2017 8:06 am**

Hi Team,

We have two linux server whose nagios agent was working till 17 Feb but suddenly we are getting "CHECK_NRPE: Error - Could not complete SSL handshake".No changes was done to the server.We checked allowed host in nrpe.cfg file and /etc/xinetd.d/nrpe file.It is present in it.We also checked port 5666 is open in both servers.Could please help.

Posted: **Tue Feb 21, 2017 12:15 pm**

Can you share the output of the following commands executed from the CLI of your Nagios XI machine:

Code: Select all

# yum install nmap if not already installed
nmap -sS -O -p5666 192.168.67.97
/usr/local/nagios/libexec/check_nrpe
/usr/local/nagios/libexec/check_nrpe -H <remote_host> -n
/usr/local/nagios/libexec/check_nrpe -H <remote_host>

From the remote machine, can you share the outputs of:

Code: Select all

cat /usr/local/nagios/etc/nrpe.cfg
cat /etc/xinetd.d/nrpe
netstat -an | grep 5666
cat /etc/*lease

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CHECK_NRPE: Error - Could not complete SSL handshake

CHECK_NRPE: Error - Could not complete SSL handshake

Re: CHECK_NRPE: Error - Could not complete SSL handshake