DNS report for zone “vietcons.org”
Hostmaster for zone vietcons.org is:IP settings (as seen from dotvn)
error
You have less than 2 nameservers. You need to have at least 2 nameservers!
warn
All of your nameservers resides in the same C-Net, this makes it very likely that they will be affected by the same outages. You should consider getting a secondary nameserver hosted somewhere else.
Mail settings (as seen from dotvn)
Zone as seen from “dotvn”
error
Host is not authorative!