i'm starting to experiment the dns configuration uasing but i'm alrteady facing issue.
I have created two ubuntu VM and the first step was to create a simple BIND Cache only Server which should work out of the bleu just installing bind9 and configuring the DNS client pointing to the bind Server
I have installed bind9 to ubuntu2 VM and configured the DNS Client to 127.0.0.1 and i tested my dns server with dig experiencing errors which the most common checking the log is:
- named: REFUSED unexpected RCODE resolving './NS/IN': 188.8.131.52#53
for each root servers. Ths errors means that ther root servers refused to reply to the DNS queries?
Other errors is that
*- named: validating lamer/DS: no valid signature found
- named: no valid RRSIG resolving 'lamer/DS/IN': 184.108.40.206#53*
which i solved changing
dnssec-validation no on the /etc/bind/named.conf.options
which continues to work even if I put back dnssec-validation auto
Do you have any idea where these problems come from? i'm confused