For Fully Automated Nagios

Go to the Centreon web interface of fully automated nagios. 

Select Configuration >Users> nagiosadmin

then you can change the password (Or whatever your admin user name)

Launch this command on the FAN server :

Note: Fully Automated Nagios Centreon Default Password is “nagiosadmin“

Change centreon password from console.

The default login nagiosadmin/nagiosadmin
# mysql centeon2
mysql> update contact set contact_passwd=’426d184e674e6c3020d38bde1d7ed35d’ where contact_alias=’nagiosadmin’;

For Centreon 19.04