Check_MK, one of the best plugin for Nagios

Check_MK is a collection of extensions for the IT-Monitoring-Kernel of Nagios and together with this, and ideally also with PNP4Nagios and NagVis constitutes a complete IT-Monitoring-System. Check_MK is 100% Open-Source and is available under the terms of the GNU GPL.

View homepage to get full information:
http://mathias-kettner.com


First must install nagios: view here

After download and extract from :
http://mathias-kettner.com/check_mk_download.html



Install
Must install libapache2-mod-python first.

Go to extracted folder in terminal.
sudo -s
./setup.sh

Next next next and next.
setup progress will auto detect elements.

Type y, Enter

Restart nagios and apache2 services
service nagios restart
service apache2 restart


This is the result (image from wiki):

Error when run

When I restart linux, having an error

"Livestatus problem: Cannot connect to  'unix:/usr/local/nagios/var/rw/live': [Errno 111] Connection refused"

This is because pemission, use commands:

chown nagios.nagcmd /usr/local/nagios/var/rw
chmod g+rwx /usr/local/nagios/var/rw
chmod g+s /usr/local/nagios/var/rw