Nagios Support Forum

Nevermind, I am able to get checks on the linux host working now. Thank you all for the help!

Changing verify-mode did the trick. I was able to get all Windows host checks working. However when copying over a linux host config file, the checks are failing with the error"(Return code of 255 is out of bounds)". In nrpe.cfg on the server I have: command[check_load]=/usr/local/nagios/l...

nsclinet.ini ; Undocumented section [/settings/default] ; ALLOWED HOSTS - A comaseparated list of allowed hosts. You can use netmasks (/ syntax) or * to create ranges. allowed hosts = 222.174.46.250 ; PASSWORD - Password used to authenticate against server password = paszword ; Undocumented section...

I already have insecure = true on my windows client's nsclient.ini file.

Do I need to have NSclient installed on the nagios server?

CHECK_NRPE Error - Could not complete SSL handshake

On the Windows server, the nsclient.log has:

error:D:\source\nscp\include\socket/connection.hpp:243: Failed to establish secure connections: sslv3 alert unexpected message: 1010

NRPE v2.15
root 3446 11456 0 17:16 pts/0 00:00:00 grep --color=auto nrpe

The new server does not have firewalld running. It uses iptables.

I just recompiled the plugins and ran make and make install. When running the ./configure part, I do see "with-openssl = yes"

Looking at that article's explanation of the "Could not complete SSL Handshake" error: I added my new nagios server IP to allowed hosts in both /usr/local/nagios/etc/nrpe.cfg and /etc/xinetd.d/nrpe I also added the "per_source" and "instances" lines to /etc/xinetd.d/nrp...

I have an old nagios v3.5 server that I'm replacing with a new CentOS 7 server to run nagios v4.1.1. I tried copying over a windows and linux host config files to the new Nagios server and started to get errors. When using the Nagios web client to view the windows host, which previously was running ...

I've erased the 3.5.1 instance and it is now working. Thank you all! You can close this post