Nagios service is running but UI is not up.

I followed steps given in After following all the steps , Nagios service is running but when i tried to open UI i got message as The requested URL /nagios was not found on this server


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I believe that you have to enable the new Nagios Vhost that you’ve created. You could do that with:

sudo ln -s /etc/apache2/sites-available/nagios.conf /etc/apache2/sites-enabled/


a2ensite nagios

Then you need to do a quick Apache reload:

systemctl reload apache2

Regards, Bobby