Nagios Support Forum

Is there any easy way to get nagios notify me via mail for example or rss feed when a host or service goes down - critical?

Yes, nagios should notify you when a host/service goes to hard non-ok state. Read more about notifications in Nagios Core here:
https://assets.nagios.com/downloads/nag ... tions.html

As for the RSS notifications, check out the Nagios Exchange listing below:
https://exchange.nagios.org/directory/A ... ns/details

Mark this as solved and lock the thread please.