DNS > Class 2 - Next Generation DNS Services > 5. Validating Resolver Source | Edit on
5.3. ResultsΒΆ
Now lets look at results. Tail the ltm log on the BIG-IP
tail -f /var/log/ltm | grep tmm
From a Web shell on the Ubuntu Client, start wtih some DNS queries.
First, issue a DNS query that returns no response:
dig @10.1.10.53 nope.f5.com
Next, set the DNSSEC OK bit in the query (DO):
dig @10.1.10.53 dnssec-deployment.org +dnssec
Finally, set the DNSSEC but but observe how the response is different:
dig @10.1.10.53 www.google.com +dnssec