Nagios Support Forum

Do i need to install nagios on the remote machine to monitor it or just the nrpe agent , i can't seem to see the server i am trying to monitor in my web interface. can you send me a link to the best instructions to start monitoring my remote machines please

You don't need to install Nagios XI on the remote machine in order to monitor it. You usually need an agent. NRPE is only one of the choices though. What is the OS that you are running on the client?
You can monitor Windows via NCPA, NSclient++, SNMP, WMI, etc. You can monitor Linux via NCPA, NRPE, SNMP, SSH, etc. You can monitor OSX via NCPA, or NRPE.

What are the metrics that you are going to monitor on the remote box?

i am trying to monitor a ubuntu server , i have followed the instructions to install the nrpe agent . the install completes with no errors, but the server is in a docker container and its running nginx instead of apache. i have installed the nrpe agent , but its won't start , its says no such file or directory. its very frustrating as everything looks normal, i have gone back over instructions several times. i don't understand why when i do /etc/init.d/nrpe or service nrpe start its doesn't find it .

please help

Do you know if NRPE was installed under xinetd or as a standalone daemon?

Can you share the contents of: And if there is an nrpe file in that directory, the contents of that file?