RE: Host status DOWN reported by Nagios

[johnRS]

Hi,

My network is a Windows workgroup environment, I am just monitoring two hosts only. They are Windows server 2016, up and running.
I can ping both servers by hostname and IPv6 no problem in Windows environment.

The issue here is I cannot ping by hostname from Nagios VM, but I can ping by ip address to each one of them.
- I installed the ncpa v2.2.1 on each server
- Only one of them Nagios is able to show the host status, the other server is showing "DOWN", but Nagios can ping it.
- The host "Down" has status information showing "check_icmp: failed to resolve hostname name or service not known.
Why is one server is ok and the other cannot retrieve the information?

Any help will be appreciated, thanks

J

[lmiltchev]

When you run the following command from the command line on the Nagios XI server:

Code: Select all

nslookup <Windows hostname>

substituting <Windows hostname> with the actual hostname, does it resolve?