agentless monitoring of hosts using nagios core

[trivedi]

Hi

Please suggest me agent less monitoring of all devices with out any plugin/agent installation on remote host for monitoring the resources and health status using nagios server.

Hope will get a positive and quick reply.

[mcapra]

Unless you're doing some sort of ping/telnet/tcp or general network related tests, you're going to need some sort of agent. The agent could be some stock Linux program like SSH, or it could be something widely available to package managers like SNMP, or it could be something produced in the Nagios ecosystem like NRPE/NCPA/NSClient++.

So, if all you care about is whether or not the remote machine can accept a ping request, then you can use the check_ping or check_icmp plugins present in the nagios-plugins package:
http://nagios-plugins.org/

You could also leverage something like NRDP to have your machines ship their information back to Nagios Core instead of having Nagios Core directly query the machines:
https://exchange.nagios.org/directory/A ... or/details

If you want to look at disk/memory/cpu usage and more granular things, you will need to leverage an agent of some sort.

https://www.unixmen.com/monitor-linux-s ... sing-snmp/
https://www.nagios.org/ncpa/help.php
https://exchange.nagios.org/directory/T ... -7/details
https://assets.nagios.com/downloads/nag ... ndows.html
http://www.techrepublic.com/blog/linux- ... sh-plugin/

[tmcdonald]

Thanks for the assist, @mcapra!