After I did an apt-get update, apt-get upgrade on perfect debian etch server, when I tried looking up my DNS records from network-tools.com:
mydomain.us is just a representation of my true domain.
It used to be running smoothly and displaying correct records, not it's displaying this:
Retrieving DNS records for mydomain.us...
DNS server returned an error: Name server failed
what went wrong, and what did I do wrong?