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Best regards, BSNIC Office of Information Technology University of The Bahamas University Drive PO Box N4912 Nassau, NP The Bahamas www.register.bs ________________________________ From: Viktor Dukhovni <[email protected]> Sent: Tuesday, September 20, 2022 8:33 PM To: [email protected] <[email protected]> Cc: BS Domain Technical Contact <[email protected]>; BS Domain Administrator <[email protected]> Subject: ENT NXDOMAIN problem at .BS nameserver ns36.cdns.net The .COM.BS is an empty non-terminal with various child domains registered beneath. The "ns36.cdns.net" nameserver for .BS responds with NXDOMAIN to "com.bs" qname-minimised queries. This in turn can and does sometimes lead to NXDOMAIN inference for the child domains. This nameserver needs to be withdrawn and fixed before it is returned to service. 2001:678:4::24 ns36.cdns.net 194.0.1.36 ns36.cdns.net Example responses: @194.0.1.36 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 3297 ;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;com.bs. IN SOA ;; AUTHORITY SECTION: bs. SOA dns.nic.bs. bsadmin.cob.edu.bs. 2022092000 3600 900 1814400 9000 @2001:678:4::24 ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 39616 ;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;com.bs. IN SOA ;; AUTHORITY SECTION: bs. SOA dns.nic.bs. bsadmin.cob.edu.bs. 2022092000 3600 900 1814400 9000 -- Viktor.
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