af.mil DNSSEC Outage: 2016-08-06

Updated: August 8, 2016

Overview

This page gives some details on the af.mil DNSSEC outage on August 8, 2016.

Timeline / DNSViz

OpenDNS & Google Public DNS

OpenDNS does not support DNSSEC, instead supporting DNSCurve. Google Public DNS currently supports only DNSSEC, and thus, Google's users saw SERVFAIL for queries under af.mil during this outage.

$ dig www.af.mil @resolver1.opendns.com.

; <<>> DiG 9.4.2-P2 <<>> www.af.mil @resolver1.opendns.com.
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35486
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.af.mil. IN A

;; ANSWER SECTION:
www.af.mil. 300 IN CNAME www.af.mil.edgesuite.net.
www.af.mil.edgesuite.net. 300 IN CNAME a499.dscb.akamai.net.
a499.dscb.akamai.net. 20 IN A 23.59.190.136
a499.dscb.akamai.net. 20 IN A 23.59.190.105

;; Query time: 136 msec
;; SERVER: 208.67.222.222#53(208.67.222.222)
;; WHEN: Sat Aug 6 18:54:03 2016
;; MSG SIZE rcvd: 129

With Google Public DNS, because of DNSSEC, queries fail:

$ dig +dnssec www.af.mil @8.8.8.8

; <<>> DiG 9.4.2-P2 <<>> +dnssec www.af.mil @8.8.8.8
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 5548
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 512
;; QUESTION SECTION:
;www.af.mil. IN A

;; Query time: 9 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Aug 6 18:54:03 2016
;; MSG SIZE rcvd: 39

Zonemaster

zonemaster.net archived "Delegation from parent to child is not properly signed (no_dnskey)."

zonemaster.fr archived "Delegation from parent to child is not properly signed (no_dnskey)."

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