Hi,
this status mean - hostname(s) not resolved during polling process.
As example, when your DNS server not respond, stopped working as an user written here.
Marios Palechoros via observium wrote on 27.10.2020 12:35:
Hello all,
I can see in my observium installation that many devices changed their status to down(dns). This is a new installation and we migrated the configuration yesterday on a new server and devices were working properly. At around the same time (14:20:00) a lot of our machines changed their status to down. The message in the Event log is "Device status changed to Down (dns)". I tried to find what the problem may be but I can see SNMP are correct and dns records exist for the systems. Any ideas?
Thank you, Marios
observium mailing list observium@observium.org http://postman.memetic.org/cgi-bin/mailman/listinfo/observium