Question and response
Question
dig dnsdb.nrw.net. NS
Answer
dnsdb.nrw.net. 5 CNAME dnsdb.joker.csl.de.
dnsdb.joker.csl.de. 5 CNAME dnsdb1.prod.joker.csl.de.
Authority
csl.de. 300 SOA a.ns.nrw.net. hostmaster.joker.com. 2026030570 14400 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0