Nagios Client

[DOkuwa]

I am installing Nagios Core on a server and want to monitor unix servers
Do i always need to install the NRPE on the unix servers as a client as there are quite many or i configure the unix servers with snmp on the /etc/snmp/snmpd.conf with a community string I mean for the client side which is the unix servers.
Please suggest

[mcapra]

check_snmp is included as part of nagios-plugins:
https://nagios-plugins.org/doc/man/check_snmp.html

You could certainly use it to reach out to a net-snmp agent in place of NCPA/NRPE/NSClient++.

Here's a decent walkthrough for setting up the service/commands as well as some explanation of the OIDs available:
https://www.unixmen.com/monitor-linux-s ... sing-snmp/

[DOkuwa]

Thanks
Good information

[DOkuwa]

Also can we monitor hosts with ssh

[dwasswa]

Thanks @mcapra.

@DOkuwa, let us know if you have any more questions.

[mcapra]

Also can we monitor hosts with ssh

Yup, with check_by_ssh also included in nagios-plugins:
https://nagios-plugins.org/doc/man/check_by_ssh.html

Another pretty OK guide using SSH keys:
http://www.techrepublic.com/blog/linux- ... sh-plugin/

[kyang]

Thanks @mcapra!

@DOkuwa, let us know if you have any more questions.