EDNSにはFORMERRを返すサーバーをひとつ見つけた。
1. watchA
Contents
%dig +nocookie +noedns -t soa joppari.co.jp @ns.joppari.jp. ~/dnsq/0721 ; <<>> DiG 9.12.1 <<>> +nocookie +noedns -t soa joppari.co.jp @ns.joppari.jp. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55265 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;joppari.co.jp. IN SOA ;; ANSWER SECTION: joppari.co.jp. 86400 IN SOA ns.joppari.jp. root.joppari.jp. 20020421 3600 3600 604800 86400 ;; ADDITIONAL SECTION: ns.joppari.jp. 43200 IN A 218.224.203.130 ;; Query time: 41 msec ;; SERVER: 218.224.209.130#53(218.224.209.130) ;; WHEN: Sat Jul 21 21:56:22 JST 2018 ;; MSG SIZE rcvd: 99
%dig +nocookie -t soa joppari.co.jp @ns.joppari.jp. ~/dnsq/0721 ; <<>> DiG 9.12.1 <<>> +nocookie -t soa joppari.co.jp @ns.joppari.jp. ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: FORMERR, id: 6685 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;joppari.co.jp. IN SOA ;; Query time: 41 msec ;; SERVER: 218.224.209.130#53(218.224.209.130) ;; WHEN: Sat Jul 21 21:56:56 JST 2018 ;; MSG SIZE rcvd: 42