Nagios Support Forum

something weird about the backend connection
going down rabbit hole of AI I managed to get the data to sync yesterday.
however, today when I added another host (like 3rd one only) it did not show up.

posting here as PSA. I'll see about opening an official support ticket.

NDO3 is required, it is surprising it was not installed. We don't ship NDO2 these days. Do you have access to install.log? In any case, NDO3 in a NEB module, it should have compiled and loaded when the monitoring engine started. What version of XI are you coming from? fresh install of nagisoxi 2026...

thanks kfanselow here is the output. No change after "reconfigure nagios" grep "^broker" /usr/local/nagios/etc/nagios.cfg broker_module=/usr/local/nagios/bin/ndo.so /usr/local/nagios/etc/ndo.cfg systemctl status nagios ● nagios.service - Nagios Core 4.5.12 Loaded: loaded (/usr/li...

Looks like ndo3 is required, but it was not installed on a fresh box along
with nagiosXI

is it required? ndo2 is not there either.

Fresh installs of Nagios XI should have localhost as a host already configured. Are you saying you don't see this? This makes me think you likely have a database error. In /usr/local/nagiosxi/scripts, there will be a repair_databases.sh script that you can run that usually fixes issues like these. ...

yes. several times with several attemps.
applied config is good, I get alerts, etc. just do NOT see it in "host status" or " service status"

update : service checks work fine, but no hosts and no services show up.

Brand new install, I added 3 hosts in CCM . but host status still showing zero hosts
what am I missing?

+1

we need the feature to log who made changes. I'm surprised we don't have this already.

No responses? is there a doc on httpd configs required?