Nagios Support Forum

Hello Team,

We have recently upgraded to nagios 4.4.2 and check_nrpe version 3.2.1, getting below error intermittently.

check_nrpe: Error: (nerrs = 0)(!log_opts) Could not complete SSL handshake with 10.229.136.3: rc=0 SSL-error=5
nagios: SERVICE ALERT: ARANT102;FLEXSENSE-AGENT;CRITICAL;SOFT;1;CHECK_NRPE: Error - Could not connect to 10.229.136.3. Check system logs on 10.229.136.3

Can you please help on this?

What version of the nrpe agent is on the client?

Try running the check_nrpe command with the -2 option.

on the client, nrpe version 2, I am using check command with -2 option only. Still getting below error.

CHECK_NRPE: Error - Could not connect to 10.229.136.3. Check system logs on 10.229.136.3

Details:

Nagios version 4.4.2
Nrpe on nagios server 3.2.1
NRpe on client version 2


Please let me know if any additional details required.

Edit the nrpe.cfg on the client side and enable debugging in the file:

debug=1

then restart the client and tail /var/log/messages:

tail -f /var/log/messages

or on a Ubuntu system it would be /var/log/syslog:

tail -f /var/log/syslog

While that's running, run the check_nrpe command again on the Nagios server and watch the log for any details.

Hello,

The issues are on the windows servers.
Enabled debugging on nsclient.ini file on the windows server and found the below error.

2019-04-02 14:03:09: e:c:\build\nscp\include\socket/connection.hpp:134: Failed to read data

Please advice.

Thx.

I have set -u flag on check_nrpe to receive connection error as unknown alert.
It works for all the alerts except the below alert.

CRITICAL;SOFT;1;CHECK_NRPE: Error - Could not connect to . Check system logs on

I am receiving critical alerts only for the above pattern.

Can you please advice to change this alert from critical to unknown?

Please PM me a copy of the nsclient.ini file.

What version of nsclient++ is this?

What is the full command that you are running on the XI server?