Install Nagios3 in Ubuntu
Nagios:
http://www.nagios.org/
Nagios to monitor your entire IT infrastructure
1) sudo apt-get install nagios3
2) To avoid error in service nagios3 start
sudo /etc/init.d/nagios3 stop
sudo /etc/init.d/nagios3 start
3) Remember nagiosadmin and its password
4) In you hostname/nagios3, for example
http://192.168.56.101/nagios3/
to start
nagios monitoring
The following may need to be changed:
vi /etc/nagios3/nagios.cfg and set check_external_commands=1
vi /etc/groups and add www-data at the end of nagios group
chmod g+x /var/lib/nagios3/rw/
chmod g+x /var/lib/nagios3
More about this video:
http://jiansenlu.blogspot.ca/2014/04/...
