.firestone TLD DNSSEC Outage: 2019-08-07

Date: August 7, 2019

Overview

This page gives some details on the .firestone TLD DNSSEC on August 7.

Timeline / DNSViz

(At the time of this writing, DNSViz historical archives have been down for months. DNSSEC makes its users think downtime doesn't matter.)

DNSSEC Debugger

Verisign's DNSSEC Debugger doesn't archive results, so here's a screenshot of my web browser's output from August 7, 2019:

August 7, 2019 .firestone TLD DNSSEC outage

drill trace

Since DNSSEC contains so much garbage, I put the complete drill trace into its own file, with the relevant portion below (emphasis added):

;; Domain: firestone.
[B] firestone. 86400 IN DNSKEY 256 3 8 ;{id = 43114 (zsk), size = 1024b}
firestone. 86400 IN DNSKEY 257 3 8 ;{id = 9944 (ksk), size = 2048b}
[U] No data found for: firestone. type A
;;[S] self sig OK; [B] bogus; [T] trusted

Google DNS: with and without DNSSEC

DNSSEC can be disabled in queries via the CD (checking disabled) bit. Let's compare DNS queries with and without DNSSEC.

$ dig +dnssec ns firestone. @8.8.8.8

; <<>> DiG 9.4.2-P2 <<>> +dnssec ns firestone. @8.8.8.8
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 12664
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 512
;; QUESTION SECTION:
;firestone. IN NS

;; Query time: 49 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed Aug 7 08:33:53 2019
;; MSG SIZE rcvd: 38

$ dig +cd ns firestone. @8.8.8.8

; <<>> DiG 9.4.2-P2 <<>> +cd ns firestone. @8.8.8.8
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49470
;; flags: qr rd ra cd; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;firestone. IN NS

;; ANSWER SECTION:
firestone. 21599 IN NS a.gmoregistry.net.
firestone. 21599 IN NS l.gmoregistry.net.
firestone. 21599 IN NS k.gmoregistry.net.
firestone. 21599 IN NS b.gmoregistry.net.

;; Query time: 28 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed Aug 7 08:33:54 2019
;; MSG SIZE rcvd: 106

Logfile examples

These Unbound log entries come from different Unbound instances, each on different servers in different geographical regions.