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Host Down
Posted: Thu Sep 13, 2018 9:22 am
by Mani.Murugesan
Hello Team,
Recently I received host down alert for one windows host.
but uptime is showing 4 days
can you please clarify this ?
Re: Host Down
Posted: Thu Sep 13, 2018 11:07 am
by scottwilkerson
It depends on what check you are running for the host check, the host might have not responded to a ping request oif you were running a ping check.
The down state is going to depend on what you have in the check command and the output of that plugin.
Re: Host Down
Posted: Thu Sep 13, 2018 1:13 pm
by Mani.Murugesan
I m not using any check but I am using template i.e xiwizard_windowsserver_host
so my question is if server is showing 100 % packet loss ----> please explain about this because I am in confused state
If server showing down but system uptime that means I have already monitored uptime parameter that is showing 4 days something
so if any difference is there ?
uptime 4 days but server showing down how it's showing like this?
Re: Host Down
Posted: Thu Sep 13, 2018 3:14 pm
by npolovenko
@Mani.Murugesan, The remote host could be running a check_uptime plugin and sending the results over via NRPE, NCPA, NSClient and so on. They all use different ports such as 5666, 12489, 5693.
https://support.nagios.com/kb/article/u ... s-784.html
Ping check, on the other hand, uses the icmp protocol. Your windows server may not be ICMP discoverable but still have the other ports open. Please refer to this tutorial to make sure PING is enabled on your windows server.
https://kb.iu.edu/d/aopy