Question and response
Question
dig sigma1.postal.cyso.net. CSYNC
Answer
The response has no answer records.
Authority
postal.cyso.net. 300 SOA ns1.cyso.nl. dnsadmin.cysonet.com. 1772064000 16384 2048 1048576 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0