dnscrypt.pl DNSSEC Outage:
2017-08-20 to 2017-08-22

Updated: August 23, 2017

Overview

This page gives some details on the dnscrypt.pl DNSSEC outage from August 20 to August 22, 2017. This site has had multiple DNSSEC outages.

Timeline / DNSViz

DNSSEC Debugger

Unlike DNSViz, Verisign's DNSSEC Debugger doesn't archive results, so here's a screenshot of my web browser's output from August 20, 2017:

August 20, 2017 dnscrypt.pl DNSSEC outage

Zonemaster

Google Public DNS, with/without DNSSEC

With DNSSEC enabled, queries fail:

$ dig +dnssec a dnscrypt.pl. @8.8.8.8

; <<>> DiG 9.10.3-P4-Debian <<>> +dnssec a dnscrypt.pl. @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 23899
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 512
;; QUESTION SECTION:
;dnscrypt.pl. IN A

;; Query time: 319 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Aug 20 21:43:25 UTC 2017
;; MSG SIZE rcvd: 40


You have to disable DNSSEC to make DNS work:

$ dig +cd a dnscrypt.pl. @8.8.8.8

; <<>> DiG 9.10.3-P4-Debian <<>> +cd a dnscrypt.pl. @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43216
;; flags: qr rd ra cd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;dnscrypt.pl. IN A

;; ANSWER SECTION:
dnscrypt.pl. 86399 IN A 178.62.233.48

;; Query time: 185 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Aug 20 21:43:26 UTC 2017
;; MSG SIZE rcvd: 56

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: dnscrypt.pl.
[B] dnscrypt.pl. 86400 IN DNSKEY 257 3 5 ;{id = 65416 (ksk), size = 2048b}
dnscrypt.pl. 86400 IN DNSKEY 257 3 13 ;{id = 55059 (ksk), size = 256b}
dnscrypt.pl. 86400 IN DNSKEY 257 3 7 ;{id = 5991 (ksk), size = 2048b}
dnscrypt.pl. 86400 IN DNSKEY 256 3 5 ;{id = 1651 (zsk), size = 1024b}
dnscrypt.pl. 86400 IN DNSKEY 256 3 7 ;{id = 1802 (zsk), size = 1024b}
dnscrypt.pl. 86400 IN DNSKEY 256 3 13 ;{id = 55894 (zsk), size = 256b}
[B] dnscrypt.pl. 86400 IN A 178.62.233.48
;; Error: No keys with the keytag and algorithm from the RRSIG found

;;[S] self sig OK; [B] bogus; [T] trusted

Logfile examples