Migrating from Nagios to Shinken Enterprise is very easy

You can enable the Nagios configuration file source in the file /etc/shinken/modules/cfg-file-nagios.cfg

All you need to do is to set the following parameters:

• cfg_path                   /etc/nagios/nagios.cfg

Note: you must copy all your Nagios configuration into the Shinken Enterprise.

Please also note that Nagios files are full path based, so you must put the Nagios configuration files in the same place than you did on your Nagios server.