I have tried to find help in forum , and have found this topic with the same problem than our:
https://support.nagios.com/forum/viewto ... 0&start=20
So, finally the problem is resolved doing:
Code: Select all
rm -f /usr/local/nagios/var/ndo.sock
systemctl start ndo2db.service
systemctl status ndo2db.serviceThe problem is this morning, after we had to reset again Nagios XI server, "Database backend" was in red again.
My ask is, this is a bug about 5.4.0 ?
how can I fixed the problem ?